./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i --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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:44:07,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:44:07,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:44:07,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:44:07,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:44:07,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:44:07,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:44:07,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:44:07,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:44:07,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:44:07,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:44:07,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:44:07,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:44:07,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:44:07,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:44:07,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:44:07,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:44:07,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:44:07,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:44:07,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:44:07,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:44:07,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:44:07,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:44:07,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:44:07,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:44:07,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:44:07,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:44:07,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:44:07,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:44:07,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:44:07,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:44:07,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:44:07,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:44:07,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:44:07,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:44:07,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:44:07,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:44:07,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:44:07,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:44:07,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:44:07,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:44:07,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:44:07,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:44:07,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:44:07,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:44:07,340 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:44:07,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:44:07,340 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:44:07,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:44:07,341 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:44:07,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:44:07,341 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:44:07,341 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:44:07,342 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:44:07,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:44:07,342 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:44:07,343 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:44:07,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:44:07,344 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:44:07,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:44:07,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:44:07,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:44:07,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:44:07,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:44:07,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:44:07,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:44:07,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:44:07,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:44:07,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:44:07,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:44:07,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:44:07,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:44:07,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:07,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:44:07,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:44:07,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:44:07,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:44:07,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:44:07,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:44:07,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:44:07,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:44:07,349 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2021-11-03 05:44:07,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:44:07,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:44:07,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:44:07,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:44:07,711 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:44:07,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2021-11-03 05:44:07,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/740c9d8b7/92d1a224d8754086b9a5eb54d096212a/FLAG17833f66a [2021-11-03 05:44:08,336 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:44:08,337 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2021-11-03 05:44:08,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/740c9d8b7/92d1a224d8754086b9a5eb54d096212a/FLAG17833f66a [2021-11-03 05:44:08,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/740c9d8b7/92d1a224d8754086b9a5eb54d096212a [2021-11-03 05:44:08,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:44:08,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:44:08,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:08,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:44:08,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:44:08,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:08" (1/1) ... [2021-11-03 05:44:08,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405a6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:08, skipping insertion in model container [2021-11-03 05:44:08,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:08" (1/1) ... [2021-11-03 05:44:08,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:44:08,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:09,094 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2021-11-03 05:44:09,098 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2021-11-03 05:44:09,100 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2021-11-03 05:44:09,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:09,134 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 05:44:09,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e39567a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:09, skipping insertion in model container [2021-11-03 05:44:09,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:09,136 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:44:09,138 INFO L168 Benchmark]: Toolchain (without parser) took 517.24 ms. Allocated memory is still 121.6 MB. Free memory was 79.7 MB in the beginning and 90.9 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:09,138 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 121.6 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:44:09,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.15 ms. Allocated memory is still 121.6 MB. Free memory was 79.6 MB in the beginning and 90.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:09,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 121.6 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 510.15 ms. Allocated memory is still 121.6 MB. Free memory was 79.6 MB in the beginning and 90.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 642]: 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:44:11,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:44:11,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:44:11,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:44:11,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:44:11,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:44:11,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:44:11,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:44:11,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:44:11,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:44:11,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:44:11,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:44:11,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:44:11,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:44:11,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:44:11,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:44:11,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:44:11,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:44:11,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:44:11,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:44:11,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:44:11,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:44:11,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:44:11,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:44:11,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:44:11,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:44:11,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:44:11,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:44:11,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:44:11,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:44:11,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:44:11,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:44:11,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:44:11,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:44:11,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:44:11,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:44:11,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:44:11,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:44:11,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:44:11,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:44:11,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:44:11,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:44:11,632 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:44:11,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:44:11,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:44:11,634 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:44:11,635 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:44:11,635 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:44:11,635 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:44:11,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:44:11,636 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:44:11,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:44:11,637 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:44:11,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:44:11,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:44:11,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:44:11,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:44:11,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:44:11,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:44:11,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:44:11,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:44:11,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:44:11,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:44:11,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:11,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:44:11,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:44:11,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:44:11,640 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:44:11,641 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:44:11,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:44:11,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:44:11,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:44:11,641 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2021-11-03 05:44:12,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:44:12,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:44:12,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:44:12,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:44:12,093 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:44:12,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2021-11-03 05:44:12,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/201b33f63/ebfe205675ff4e6a9314ed9d914832a5/FLAGccd400296 [2021-11-03 05:44:12,869 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:44:12,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2021-11-03 05:44:12,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/201b33f63/ebfe205675ff4e6a9314ed9d914832a5/FLAGccd400296 [2021-11-03 05:44:13,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/data/201b33f63/ebfe205675ff4e6a9314ed9d914832a5 [2021-11-03 05:44:13,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:44:13,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:44:13,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:13,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:44:13,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:44:13,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ebe6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13, skipping insertion in model container [2021-11-03 05:44:13,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:44:13,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:13,619 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2021-11-03 05:44:13,623 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2021-11-03 05:44:13,625 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2021-11-03 05:44:13,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:13,651 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:44:13,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:13,701 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2021-11-03 05:44:13,702 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2021-11-03 05:44:13,703 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2021-11-03 05:44:13,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:13,714 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:44:13,759 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26271,26284] [2021-11-03 05:44:13,760 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26396,26409] [2021-11-03 05:44:13,761 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_ecb3ef0a-190a-4afc-ba72-7cc61080663b/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i[26511,26524] [2021-11-03 05:44:13,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:13,837 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:44:13,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13 WrapperNode [2021-11-03 05:44:13,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:13,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:44:13,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:44:13,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:44:13,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:44:13,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:44:13,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:44:13,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:44:13,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:13,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:14,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:14,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:14,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:44:14,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:44:14,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:44:14,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:44:14,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (1/1) ... [2021-11-03 05:44:14,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:14,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:44:14,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:44:14,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:44:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:44:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:44:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:44:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:44:15,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:44:15,072 INFO L299 CfgBuilder]: Removed 55 assume(true) statements. [2021-11-03 05:44:15,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:44:15 BoogieIcfgContainer [2021-11-03 05:44:15,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:44:15,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:44:15,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:44:15,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:44:15,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:44:13" (1/3) ... [2021-11-03 05:44:15,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74807d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:44:15, skipping insertion in model container [2021-11-03 05:44:15,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:13" (2/3) ... [2021-11-03 05:44:15,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74807d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:44:15, skipping insertion in model container [2021-11-03 05:44:15,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:44:15" (3/3) ... [2021-11-03 05:44:15,083 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2021-11-03 05:44:15,089 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:44:15,089 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-03 05:44:15,148 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:44:15,155 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 05:44:15,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-03 05:44:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 54 states have (on average 1.5) internal successors, (81), 57 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 05:44:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:44:15,179 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:15,179 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:15,180 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:44:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:15,189 INFO L85 PathProgramCache]: Analyzing trace with hash -954795863, now seen corresponding path program 1 times [2021-11-03 05:44:15,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:15,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595179587] [2021-11-03 05:44:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:15,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:15,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:15,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:15,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:44:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:15,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:44:15,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:44:15,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:15,548 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 05:44:15,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:15,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595179587] [2021-11-03 05:44:15,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595179587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:15,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:15,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:44:15,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554288317] [2021-11-03 05:44:15,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:44:15,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:15,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:44:15,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:44:15,585 INFO L87 Difference]: Start difference. First operand has 58 states, 54 states have (on average 1.5) internal successors, (81), 57 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 05:44:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:15,618 INFO L93 Difference]: Finished difference Result 113 states and 159 transitions. [2021-11-03 05:44:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:44:15,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-03 05:44:15,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:15,632 INFO L225 Difference]: With dead ends: 113 [2021-11-03 05:44:15,632 INFO L226 Difference]: Without dead ends: 54 [2021-11-03 05:44:15,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 05:44:15,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-03 05:44:15,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-03 05:44:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 53 states have internal predecessors, (65), 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 05:44:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2021-11-03 05:44:15,677 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2021-11-03 05:44:15,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:15,678 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2021-11-03 05:44:15,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 05:44:15,679 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2021-11-03 05:44:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:44:15,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:15,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:15,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:15,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:15,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:44:15,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:15,896 INFO L85 PathProgramCache]: Analyzing trace with hash -964954594, now seen corresponding path program 1 times [2021-11-03 05:44:15,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:15,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651175975] [2021-11-03 05:44:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:15,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:15,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:15,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:15,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:44:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:16,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:44:16,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:16,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-03 05:44:16,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-03 05:44:16,323 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 05:44:16,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:16,477 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 05:44:16,477 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:16,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651175975] [2021-11-03 05:44:16,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651175975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:16,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:16,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 05:44:16,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478817483] [2021-11-03 05:44:16,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:44:16,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:16,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:44:16,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:44:16,482 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 05:44:16,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:16,990 INFO L93 Difference]: Finished difference Result 112 states and 135 transitions. [2021-11-03 05:44:16,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:44:16,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 11 [2021-11-03 05:44:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:16,998 INFO L225 Difference]: With dead ends: 112 [2021-11-03 05:44:16,999 INFO L226 Difference]: Without dead ends: 68 [2021-11-03 05:44:17,000 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:44:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-03 05:44:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2021-11-03 05:44:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 58 states have internal predecessors, (71), 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 05:44:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-11-03 05:44:17,011 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 11 [2021-11-03 05:44:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:17,012 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-11-03 05:44:17,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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 05:44:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-11-03 05:44:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:44:17,013 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:17,013 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:17,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:17,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:17,229 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:44:17,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash 821700003, now seen corresponding path program 1 times [2021-11-03 05:44:17,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:17,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963168656] [2021-11-03 05:44:17,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:17,232 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:17,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:17,233 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:17,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:44:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:17,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 05:44:17,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:17,570 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 05:44:17,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:17,732 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 05:44:17,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:17,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963168656] [2021-11-03 05:44:17,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963168656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:17,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:17,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 05:44:17,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600938032] [2021-11-03 05:44:17,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:44:17,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:44:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:44:17,750 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 05:44:18,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:18,837 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2021-11-03 05:44:18,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:44:18,844 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 13 [2021-11-03 05:44:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:18,845 INFO L225 Difference]: With dead ends: 68 [2021-11-03 05:44:18,845 INFO L226 Difference]: Without dead ends: 58 [2021-11-03 05:44:18,845 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:44:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-03 05:44:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2021-11-03 05:44:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 54 states have internal predecessors, (66), 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 05:44:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-11-03 05:44:18,851 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 13 [2021-11-03 05:44:18,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:18,851 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-11-03 05:44:18,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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 05:44:18,851 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2021-11-03 05:44:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:44:18,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:18,852 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:18,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:19,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:19,053 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:44:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:19,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1411368152, now seen corresponding path program 1 times [2021-11-03 05:44:19,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:19,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374032607] [2021-11-03 05:44:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:19,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:19,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:19,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:19,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:44:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:19,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:44:19,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:44:19,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:19,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:44:19,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:19,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374032607] [2021-11-03 05:44:19,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374032607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:19,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:19,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:44:19,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399353258] [2021-11-03 05:44:19,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:44:19,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:19,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:44:19,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:44:19,329 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 05:44:19,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:44:19,400 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2021-11-03 05:44:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:44:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-03 05:44:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:44:19,409 INFO L225 Difference]: With dead ends: 87 [2021-11-03 05:44:19,410 INFO L226 Difference]: Without dead ends: 85 [2021-11-03 05:44:19,410 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:44:19,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-03 05:44:19,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 57. [2021-11-03 05:44:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 56 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 05:44:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-11-03 05:44:19,419 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 17 [2021-11-03 05:44:19,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:44:19,419 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-11-03 05:44:19,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 05:44:19,420 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-11-03 05:44:19,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:44:19,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:44:19,424 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:44:19,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:19,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:44:19,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:44:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:44:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1409759438, now seen corresponding path program 1 times [2021-11-03 05:44:19,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:44:19,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456936719] [2021-11-03 05:44:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:44:19,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:44:19,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:44:19,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:44:19,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:44:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:19,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-03 05:44:19,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:19,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 204 [2021-11-03 05:44:21,612 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-03 05:44:21,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 159 [2021-11-03 05:44:29,868 WARN L207 SmtUtils]: Spent 8.21 s on a formula simplification. DAG size of input: 82 DAG size of output: 38 [2021-11-03 05:44:29,870 INFO L354 Elim1Store]: treesize reduction 393, result has 20.0 percent of original size [2021-11-03 05:44:29,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 237 treesize of output 206 [2021-11-03 05:45:00,888 INFO L354 Elim1Store]: treesize reduction 214, result has 8.5 percent of original size [2021-11-03 05:45:00,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 340 treesize of output 198 [2021-11-03 05:45:01,243 INFO L354 Elim1Store]: treesize reduction 188, result has 23.0 percent of original size [2021-11-03 05:45:01,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 186 treesize of output 167 [2021-11-03 05:45:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:02,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:18,559 WARN L207 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 44 [2021-11-03 05:45:20,625 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse1 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse3 (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse5 (store (select |c_#memory_$Pointer$.base| .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base)))) (store .cse4 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse4 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse3 |c_~#drvlist~0.base| (store (select .cse3 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) is different from false [2021-11-03 05:45:21,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:21,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:21,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456936719] [2021-11-03 05:45:21,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456936719] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:45:21,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225666172] [2021-11-03 05:45:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:21,499 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:45:21,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:45:21,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:45:21,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-03 05:45:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:21,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-03 05:45:21,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:21,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 121 [2021-11-03 05:45:23,586 INFO L354 Elim1Store]: treesize reduction 336, result has 8.9 percent of original size [2021-11-03 05:45:23,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 274 treesize of output 159 [2021-11-03 05:45:23,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 05:45:23,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:45:25,716 INFO L354 Elim1Store]: treesize reduction 615, result has 18.2 percent of original size [2021-11-03 05:45:25,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 231 treesize of output 223 [2021-11-03 05:46:21,680 INFO L354 Elim1Store]: treesize reduction 204, result has 13.6 percent of original size [2021-11-03 05:46:21,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 291 treesize of output 201 [2021-11-03 05:46:22,174 INFO L354 Elim1Store]: treesize reduction 160, result has 31.0 percent of original size [2021-11-03 05:46:22,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 28 case distinctions, treesize of input 247 treesize of output 197 [2021-11-03 05:46:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:22,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:47:06,280 WARN L207 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 43 [2021-11-03 05:47:11,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:47:11,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [225666172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:47:11,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025582079] [2021-11-03 05:47:11,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:47:11,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:47:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:47:11,591 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:47:11,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 05:47:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:47:11,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-03 05:47:11,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:47:12,130 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:47:12,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 84 [2021-11-03 05:47:13,532 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-03 05:47:13,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 23 [2021-11-03 05:47:15,189 INFO L354 Elim1Store]: treesize reduction 478, result has 9.3 percent of original size [2021-11-03 05:47:15,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 260 treesize of output 161 [2021-11-03 05:47:15,404 INFO L354 Elim1Store]: treesize reduction 412, result has 8.2 percent of original size [2021-11-03 05:47:15,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 213 treesize of output 139 [2021-11-03 05:47:17,347 INFO L354 Elim1Store]: treesize reduction 231, result has 1.3 percent of original size [2021-11-03 05:47:17,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 132 treesize of output 76 [2021-11-03 05:47:17,424 INFO L354 Elim1Store]: treesize reduction 171, result has 1.7 percent of original size [2021-11-03 05:47:17,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 58 treesize of output 41 [2021-11-03 05:47:17,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:47:17,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:47:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:47:40,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025582079] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:47:40,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:47:40,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 24 [2021-11-03 05:47:40,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798391598] [2021-11-03 05:47:40,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-03 05:47:40,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:47:40,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-03 05:47:40,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=451, Unknown=22, NotChecked=44, Total=600 [2021-11-03 05:47:40,185 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 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 05:48:05,714 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_~#mutexes~0.base|))) (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse0 (let ((.cse1 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse2 (store (select |c_#memory_$Pointer$.offset| .cse2) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse1 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse0 |c_~#drvlist~0.base| (store (select .cse0 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (= |c_~#mutexes~0.offset| (_ bv0 32)) (= |c_~#mutexes~0.offset| (select .cse3 (bvadd |c_~#mutexes~0.offset| (_ bv4 32)))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= (select (select (let ((.cse4 (let ((.cse6 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse6 (store (select |c_#memory_$Pointer$.base| .cse6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base)))) (store .cse5 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse5 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_6 .cse6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.base|)))))) (store .cse4 |c_~#drvlist~0.base| (store (select .cse4 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse22 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse18 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)))) (let ((.cse16 (select .cse22 .cse18))) (and (let ((.cse21 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (let ((.cse11 (select .cse21 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse20 (select .cse21 .cse18)) (.cse19 (select |c_#memory_$Pointer$.base| .cse16)) (.cse17 (select |c_#memory_$Pointer$.offset| .cse16)) (.cse15 (bvadd (_ bv4 32) .cse11))) (let ((.cse8 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse17 .cse15))) (.cse10 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse19 .cse15))) (.cse7 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse17 .cse20))) (.cse9 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse19 .cse20))) (.cse13 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse17 .cse18))) (.cse12 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse16))) (or (and .cse7 .cse8 .cse9 .cse10) (and .cse7 (= ULTIMATE.start___ldv_list_add_~new.offset .cse11) .cse9 .cse12) (and .cse13 .cse8 .cse12 .cse10) (and (let ((.cse14 (= ULTIMATE.start___ldv_list_add_~new.offset .cse15))) (or (and .cse7 .cse14 .cse9) (and .cse14 .cse13))) .cse12)))))) (bvult |#StackHeapBarrier| |c_~#mutexes~0.base|) (not (= .cse16 |c_~#mutexes~0.base|)) (bvult |ULTIMATE.start_ldv_successful_malloc_#res.base| |#StackHeapBarrier|) (= (select .cse22 ULTIMATE.start___ldv_list_add_~new.offset) .cse16))))) (= |c_~#mutexes~0.offset| (select .cse3 |c_~#mutexes~0.offset|)) (= (select (select |c_#memory_$Pointer$.base| |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|) (exists ((ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse28 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (let ((.cse30 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse29 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32))) (.cse25 (select .cse28 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse26 (select |c_#memory_$Pointer$.base| .cse25)) (.cse24 (select .cse30 .cse29)) (.cse23 (select |c_#memory_$Pointer$.offset| .cse25)) (.cse27 (bvadd (_ bv4 32) (select .cse30 ULTIMATE.start___ldv_list_add_~new.offset)))) (and (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse23 .cse24)) (not (= .cse25 |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse26 .cse27)) (= .cse25 (select .cse28 .cse29)) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse26 .cse24)) (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse23 .cse27)) (not (= |ULTIMATE.start_ldv_successful_malloc_#res.base| |c_~#mutexes~0.base|)) (not (= .cse25 |c_~#mutexes~0.base|))))))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse31 (let ((.cse33 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse32 (store |c_#memory_$Pointer$.base| .cse33 (store (select |c_#memory_$Pointer$.base| .cse33) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7)))) (store .cse32 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (store (store (select .cse32 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse33) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse31 |c_~#drvlist~0.base| (store (select .cse31 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse34 (let ((.cse35 (let ((.cse36 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse36 (store (select |c_#memory_$Pointer$.offset| .cse36) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 (store (store (select .cse35 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse34 |c_~#drvlist~0.base| (store (select .cse34 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_7 |c_#StackHeapBarrier|)))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse37 (let ((.cse38 (let ((.cse39 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse39 (store (select |c_#memory_$Pointer$.offset| .cse39) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start___ldv_list_add_~new.offset_5))))) (store .cse38 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse38 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9) v_ULTIMATE.start___ldv_list_add_~new.offset_5 v_ULTIMATE.start___ldv_list_add_~next.offset_5) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) v_ULTIMATE.start___ldv_list_add_~prev.offset_5))))) (store .cse37 |c_~#drvlist~0.base| (store (select .cse37 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start___ldv_list_add_~new.offset_5))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse40 (let ((.cse42 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse41 (store |c_#memory_$Pointer$.base| .cse42 (store (select |c_#memory_$Pointer$.base| .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9)))) (store .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9 (store (store (select .cse41 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse42) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse40 |c_~#drvlist~0.base| (store (select .cse40 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|))) (not (= (_ bv0 1) (bvneg (bvneg (bvneg (select |c_#valid| v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_9)))))))) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse43 (let ((.cse44 (let ((.cse45 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse45 (store (select |c_#memory_$Pointer$.offset| .cse45) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start___ldv_list_add_~new.offset_6))))) (store .cse44 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base (store (store (select .cse44 c_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base) v_ULTIMATE.start___ldv_list_add_~new.offset_6 v_ULTIMATE.start___ldv_list_add_~next.offset_6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.offset|))))) (store .cse43 |c_~#drvlist~0.base| (store (select .cse43 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start___ldv_list_add_~new.offset_6))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|))) (forall ((v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (_ BitVec 32))) (or (and (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= (select (select (let ((.cse46 (let ((.cse48 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse47 (store |c_#memory_$Pointer$.base| .cse48 (store (select |c_#memory_$Pointer$.base| .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8)))) (store .cse47 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse47 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 .cse48) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.base|)))))) (store .cse46 |c_~#drvlist~0.base| (store (select .cse46 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (forall ((v_ULTIMATE.start___ldv_list_add_~new.offset_6 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_6 (_ BitVec 32))) (= |c_~#mutexes~0.offset| (select (select (let ((.cse49 (let ((.cse50 (let ((.cse51 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (store |c_#memory_$Pointer$.offset| .cse51 (store (select |c_#memory_$Pointer$.offset| .cse51) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_6) v_ULTIMATE.start___ldv_list_add_~new.offset_6))))) (store .cse50 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 (store (store (select .cse50 v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8) v_ULTIMATE.start___ldv_list_add_~new.offset_6 v_ULTIMATE.start___ldv_list_add_~next.offset_6) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_6) |c_~#drvlist~0.offset|))))) (store .cse49 |c_~#drvlist~0.base| (store (select .cse49 |c_~#drvlist~0.base|) |c_~#drvlist~0.offset| v_ULTIMATE.start___ldv_list_add_~new.offset_6))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)))) (not (bvult v_ULTIMATE.start_ldv_successful_malloc_~ptr~0.base_8 |c_#StackHeapBarrier|)))) (forall ((v_ULTIMATE.start___ldv_list_add_~prev.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~new.offset_5 (_ BitVec 32)) (v_ULTIMATE.start___ldv_list_add_~next.offset_5 (_ BitVec 32))) (= (select (select (let ((.cse52 (let ((.cse54 (select (select |c_#memory_$Pointer$.base| |c_~#drvlist~0.base|) |c_~#drvlist~0.offset|))) (let ((.cse53 (store |c_#memory_$Pointer$.base| .cse54 (store (select |c_#memory_$Pointer$.base| .cse54) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~next.offset_5) |c_ULTIMATE.start_ldv_successful_malloc_#res.base|)))) (store .cse53 |c_ULTIMATE.start_ldv_successful_malloc_#res.base| (store (store (select .cse53 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|) v_ULTIMATE.start___ldv_list_add_~new.offset_5 .cse54) (bvadd (_ bv4 32) v_ULTIMATE.start___ldv_list_add_~new.offset_5) |c_~#drvlist~0.base|)))))) (store .cse52 |c_~#drvlist~0.base| (store (select .cse52 |c_~#drvlist~0.base|) v_ULTIMATE.start___ldv_list_add_~prev.offset_5 |c_ULTIMATE.start_ldv_successful_malloc_#res.base|))) |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|) |c_~#mutexes~0.base|)) (exists ((|#StackHeapBarrier| (_ BitVec 32)) (ULTIMATE.start___ldv_list_add_~new.offset (_ BitVec 32)) (|ULTIMATE.start_ldv_successful_malloc_#res.base| (_ BitVec 32))) (let ((.cse59 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_ldv_successful_malloc_#res.base|)) (.cse57 (bvadd ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)))) (let ((.cse60 (select .cse59 .cse57))) (let ((.cse56 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| .cse60)) (.cse61 (select |c_#memory_$Pointer$.base| .cse60)) (.cse55 (select |c_#memory_$Pointer$.offset| .cse60)) (.cse58 (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_ldv_successful_malloc_#res.base|))) (and (bvult |#StackHeapBarrier| |c_~#mutexes~0.base|) (bvult |ULTIMATE.start_ldv_successful_malloc_#res.base| |#StackHeapBarrier|) (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse55 (_ bv0 32))) (or (and .cse56 (= .cse57 (_ bv0 32))) (= (select .cse58 .cse57) (_ bv0 32))) (= (select .cse59 ULTIMATE.start___ldv_list_add_~new.offset) .cse60) (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse61 (_ bv0 32))) (let ((.cse62 (select .cse58 ULTIMATE.start___ldv_list_add_~new.offset))) (let ((.cse64 (bvadd (_ bv4 32) .cse62))) (let ((.cse63 (select .cse55 (_ bv4 32))) (.cse66 (= ULTIMATE.start___ldv_list_add_~new.offset .cse62)) (.cse65 (= ULTIMATE.start___ldv_list_add_~new.offset (select .cse55 .cse64))) (.cse67 (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse61 .cse64)))) (or (and (= |ULTIMATE.start_ldv_successful_malloc_#res.base| (select .cse61 (_ bv4 32))) (= .cse62 (_ bv0 32)) (= ULTIMATE.start___ldv_list_add_~new.offset .cse63)) (and (= .cse63 (_ bv0 32)) (or (and (= ULTIMATE.start___ldv_list_add_~new.offset .cse64) .cse56) .cse65 (and .cse66 .cse56)) .cse67) (and (or .cse66 .cse65) (= ULTIMATE.start___ldv_list_add_~new.offset (_ bv4 32)) .cse56 .cse67)))))))))))) is different from false [2021-11-03 05:49:13,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:13,613 INFO L93 Difference]: Finished difference Result 240 states and 284 transitions. [2021-11-03 05:49:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:49:13,620 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-03 05:49:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:13,623 INFO L225 Difference]: With dead ends: 240 [2021-11-03 05:49:13,623 INFO L226 Difference]: Without dead ends: 194 [2021-11-03 05:49:13,625 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 113.5s TimeCoverageRelationStatistics Valid=157, Invalid=756, Unknown=25, NotChecked=118, Total=1056 [2021-11-03 05:49:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-03 05:49:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 86. [2021-11-03 05:49:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.2530120481927711) internal successors, (104), 85 states have internal predecessors, (104), 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 05:49:13,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 104 transitions. [2021-11-03 05:49:13,648 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 104 transitions. Word has length 17 [2021-11-03 05:49:13,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:13,648 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 104 transitions. [2021-11-03 05:49:13,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 24 states have internal predecessors, (66), 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 05:49:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 104 transitions. [2021-11-03 05:49:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 05:49:13,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:13,650 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:13,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:13,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:14,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-03 05:49:14,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:49:14,254 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:49:14,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:14,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1315000365, now seen corresponding path program 1 times [2021-11-03 05:49:14,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:14,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696285093] [2021-11-03 05:49:14,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:14,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:14,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:14,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:49:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:14,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:49:14,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:14,716 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:49:14,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-03 05:49:15,064 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:49:15,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-03 05:49:16,381 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:49:16,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-11-03 05:49:16,913 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:49:16,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-03 05:49:17,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:17,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:17,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:49:17,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696285093] [2021-11-03 05:49:17,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696285093] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:49:17,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1555538795] [2021-11-03 05:49:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:17,187 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:49:17,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:49:17,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:49:17,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 05:49:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-03 05:49:17,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:17,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-03 05:49:17,831 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:49:17,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-03 05:49:18,332 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:49:18,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-03 05:49:20,359 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:49:20,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 48 [2021-11-03 05:49:20,796 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:49:20,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-03 05:49:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:20,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:20,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1555538795] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:49:20,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157969149] [2021-11-03 05:49:20,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:49:20,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:49:20,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:49:20,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:49:20,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:49:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:49:21,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:49:21,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:21,464 INFO L354 Elim1Store]: treesize reduction 144, result has 22.2 percent of original size [2021-11-03 05:49:21,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 18 treesize of output 46 [2021-11-03 05:49:21,790 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-03 05:49:21,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-03 05:49:23,147 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-11-03 05:49:23,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-11-03 05:49:23,503 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-11-03 05:49:23,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-11-03 05:49:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:23,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:49:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:49:23,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157969149] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:49:23,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:49:23,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2021-11-03 05:49:23,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558944781] [2021-11-03 05:49:23,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:49:23,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:49:23,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:49:23,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:49:23,644 INFO L87 Difference]: Start difference. First operand 86 states and 104 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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 05:49:28,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:49:28,399 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2021-11-03 05:49:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-03 05:49:28,401 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-03 05:49:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:49:28,402 INFO L225 Difference]: With dead ends: 252 [2021-11-03 05:49:28,402 INFO L226 Difference]: Without dead ends: 218 [2021-11-03 05:49:28,403 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 95 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-03 05:49:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-03 05:49:28,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 108. [2021-11-03 05:49:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 105 states have (on average 1.2666666666666666) internal successors, (133), 107 states have internal predecessors, (133), 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 05:49:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 133 transitions. [2021-11-03 05:49:28,428 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 133 transitions. Word has length 19 [2021-11-03 05:49:28,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:49:28,428 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 133 transitions. [2021-11-03 05:49:28,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 states have internal predecessors, (35), 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 05:49:28,428 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 133 transitions. [2021-11-03 05:49:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 05:49:28,429 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:49:28,430 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:49:28,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:28,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:28,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:49:29,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:49:29,047 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:49:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:49:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash 357801148, now seen corresponding path program 2 times [2021-11-03 05:49:29,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:49:29,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613042122] [2021-11-03 05:49:29,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:49:29,049 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:49:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:49:29,049 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:49:29,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecb3ef0a-190a-4afc-ba72-7cc61080663b/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:49:29,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:49:29,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:49:29,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-03 05:49:29,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:49:29,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2021-11-03 05:49:34,946 INFO L354 Elim1Store]: treesize reduction 304, result has 9.8 percent of original size [2021-11-03 05:49:34,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 251 treesize of output 136 [2021-11-03 05:49:35,614 INFO L354 Elim1Store]: treesize reduction 429, result has 21.3 percent of original size [2021-11-03 05:49:35,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 224 treesize of output 185 [2021-11-03 05:49:53,413 WARN L207 SmtUtils]: Spent 14.99 s on a formula simplification. DAG size of input: 234 DAG size of output: 82 [2021-11-03 05:49:53,413 INFO L354 Elim1Store]: treesize reduction 1156, result has 14.6 percent of original size [2021-11-03 05:49:53,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 463 treesize of output 407 [2021-11-03 05:50:43,777 WARN L207 SmtUtils]: Spent 50.35 s on a formula simplification. DAG size of input: 224 DAG size of output: 108 [2021-11-03 05:50:43,778 INFO L354 Elim1Store]: treesize reduction 1085, result has 25.0 percent of original size [2021-11-03 05:50:43,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 590 treesize of output 707 [2021-11-03 05:51:46,340 WARN L207 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 9 DAG size of output: 1