./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/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_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/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 64bit --witnessprinter.graph.data.programhash 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:29:07,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:29:07,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:29:07,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:29:07,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:29:07,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:29:07,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:29:07,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:29:07,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:29:07,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:29:07,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:29:07,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:29:07,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:29:07,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:29:07,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:29:07,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:29:07,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:29:07,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:29:07,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:29:07,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:29:07,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:29:07,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:29:07,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:29:07,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:29:07,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:29:07,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:29:07,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:29:07,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:29:07,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:29:07,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:29:07,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:29:07,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:29:07,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:29:07,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:29:07,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:29:07,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:29:07,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:29:07,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:29:07,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:29:07,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:29:07,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:29:07,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:29:07,835 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:29:07,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:29:07,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:29:07,836 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:29:07,836 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:29:07,837 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:29:07,837 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:29:07,837 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:29:07,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:29:07,837 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:29:07,838 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:29:07,838 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:29:07,838 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:29:07,838 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:29:07,838 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:29:07,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:29:07,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:29:07,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:29:07,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:29:07,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:29:07,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:29:07,845 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:29:07,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:29:07,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:29:07,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:29:07,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:29:07,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:29:07,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:07,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:29:07,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:29:07,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:29:07,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:29:07,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:29:07,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:29:07,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:29:07,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:29:07,852 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_7e7edc7a-91b1-482a-8795-a882485600f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2021-11-03 05:29:08,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:29:08,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:29:08,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:29:08,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:29:08,143 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:29:08,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-03 05:29:08,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/5fe0e98e4/2683ea22d9ef4ed295547b868c76e2af/FLAG8f997b39f [2021-11-03 05:29:09,222 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:29:09,224 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-03 05:29:09,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/5fe0e98e4/2683ea22d9ef4ed295547b868c76e2af/FLAG8f997b39f [2021-11-03 05:29:09,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/5fe0e98e4/2683ea22d9ef4ed295547b868c76e2af [2021-11-03 05:29:09,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:29:09,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:29:09,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:09,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:29:09,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:29:09,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:09" (1/1) ... [2021-11-03 05:29:09,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16641744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:09, skipping insertion in model container [2021-11-03 05:29:09,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:09" (1/1) ... [2021-11-03 05:29:09,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:29:09,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:29:11,779 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:29:11,782 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:29:12,722 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-03 05:29:12,725 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-03 05:29:12,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:12,790 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 05:29:12,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14d8e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:12, skipping insertion in model container [2021-11-03 05:29:12,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:12,791 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:29:12,793 INFO L168 Benchmark]: Toolchain (without parser) took 3192.04 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 69.5 MB in the beginning and 77.8 MB in the end (delta: -8.3 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:12,794 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:12,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3189.22 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 69.3 MB in the beginning and 77.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:12,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.9 MB in the end (delta: 31.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3189.22 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 69.3 MB in the beginning and 77.8 MB in the end (delta: -8.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6543]: 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_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/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_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/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 64bit --witnessprinter.graph.data.programhash 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:29:14,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:29:14,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:29:15,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:29:15,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:29:15,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:29:15,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:29:15,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:29:15,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:29:15,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:29:15,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:29:15,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:29:15,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:29:15,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:29:15,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:29:15,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:29:15,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:29:15,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:29:15,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:29:15,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:29:15,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:29:15,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:29:15,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:29:15,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:29:15,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:29:15,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:29:15,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:29:15,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:29:15,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:29:15,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:29:15,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:29:15,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:29:15,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:29:15,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:29:15,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:29:15,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:29:15,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:29:15,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:29:15,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:29:15,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:29:15,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:29:15,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:29:15,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:29:15,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:29:15,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:29:15,160 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:29:15,160 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:29:15,161 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:29:15,161 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:29:15,161 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:29:15,161 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:29:15,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:29:15,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:29:15,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:29:15,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:29:15,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:29:15,165 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:29:15,165 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:29:15,165 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:29:15,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:29:15,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:29:15,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:29:15,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:29:15,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:29:15,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:29:15,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:15,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:29:15,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:29:15,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:29:15,168 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:29:15,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:29:15,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:29:15,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:29:15,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:29:15,169 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_7e7edc7a-91b1-482a-8795-a882485600f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2021-11-03 05:29:15,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:29:15,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:29:15,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:29:15,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:29:15,588 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:29:15,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-03 05:29:15,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/1af335d76/4982809ba6134d40bfa8b5be87e4dd9d/FLAG87210b807 [2021-11-03 05:29:16,843 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:29:16,844 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-03 05:29:16,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/1af335d76/4982809ba6134d40bfa8b5be87e4dd9d/FLAG87210b807 [2021-11-03 05:29:17,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/data/1af335d76/4982809ba6134d40bfa8b5be87e4dd9d [2021-11-03 05:29:17,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:29:17,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:29:17,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:17,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:29:17,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:29:17,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:17" (1/1) ... [2021-11-03 05:29:17,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e09e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:17, skipping insertion in model container [2021-11-03 05:29:17,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:17" (1/1) ... [2021-11-03 05:29:17,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:29:17,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:29:20,369 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-03 05:29:20,371 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-03 05:29:20,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:20,460 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:29:20,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:29:20,946 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-03 05:29:20,947 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-03 05:29:20,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:21,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:29:21,379 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2021-11-03 05:29:21,380 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_7e7edc7a-91b1-482a-8795-a882485600f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2021-11-03 05:29:21,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:21,816 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:29:21,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21 WrapperNode [2021-11-03 05:29:21,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:21,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:21,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:29:21,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:29:21,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:21,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:22,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:22,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:29:22,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:29:22,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:29:22,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:22,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:22,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:22,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:23,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:23,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:23,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:23,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:29:23,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:29:23,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:29:23,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:29:23,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (1/1) ... [2021-11-03 05:29:23,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:23,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:29:23,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:29:23,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:29:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:29:23,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:29:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:29:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:29:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:29:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:29:23,472 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 05:29:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:29:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:29:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:29:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:29:23,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:29:23,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:29:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:29:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:29:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:29:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:29:23,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:29:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:29:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 05:29:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:29:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:29:23,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:29:23,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:29:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:29:23,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:31:13,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:31:13,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:31:13,628 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:31:13,629 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:31:13,629 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:31:13,630 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:31:13,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:31:13,678 INFO L299 CfgBuilder]: Removed 4397 assume(true) statements. [2021-11-03 05:31:13,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:13 BoogieIcfgContainer [2021-11-03 05:31:13,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:31:13,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:31:13,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:31:13,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:31:13,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:29:17" (1/3) ... [2021-11-03 05:31:13,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d521fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:13, skipping insertion in model container [2021-11-03 05:31:13,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:21" (2/3) ... [2021-11-03 05:31:13,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d521fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:31:13, skipping insertion in model container [2021-11-03 05:31:13,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:31:13" (3/3) ... [2021-11-03 05:31:13,693 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2021-11-03 05:31:13,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:31:13,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-03 05:31:13,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:31:13,769 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 05:31:13,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-03 05:31:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 3863 states, 3855 states have (on average 1.3156939040207523) internal successors, (5072), 3862 states have internal predecessors, (5072), 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 05:31:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 05:31:13,867 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:13,868 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:13,869 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:31:13,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:13,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1508043732, now seen corresponding path program 1 times [2021-11-03 05:31:13,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:13,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432149699] [2021-11-03 05:31:13,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:13,905 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:13,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:13,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:13,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:31:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:19,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1832 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:19,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:19,424 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 05:31:19,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:19,739 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 05:31:19,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:19,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432149699] [2021-11-03 05:31:19,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432149699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:19,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:19,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:31:19,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388535369] [2021-11-03 05:31:19,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:31:19,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:19,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:31:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:19,773 INFO L87 Difference]: Start difference. First operand has 3863 states, 3855 states have (on average 1.3156939040207523) internal successors, (5072), 3862 states have internal predecessors, (5072), 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 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 05:31:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:31:23,138 INFO L93 Difference]: Finished difference Result 13937 states and 18228 transitions. [2021-11-03 05:31:23,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:31:23,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 60 [2021-11-03 05:31:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:31:23,220 INFO L225 Difference]: With dead ends: 13937 [2021-11-03 05:31:23,221 INFO L226 Difference]: Without dead ends: 9681 [2021-11-03 05:31:23,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9681 states. [2021-11-03 05:31:23,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9681 to 9331. [2021-11-03 05:31:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9331 states, 9323 states have (on average 1.27630591011477) internal successors, (11899), 9330 states have internal predecessors, (11899), 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 05:31:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9331 states to 9331 states and 11899 transitions. [2021-11-03 05:31:23,851 INFO L78 Accepts]: Start accepts. Automaton has 9331 states and 11899 transitions. Word has length 60 [2021-11-03 05:31:23,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:31:23,852 INFO L470 AbstractCegarLoop]: Abstraction has 9331 states and 11899 transitions. [2021-11-03 05:31:23,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 05:31:23,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9331 states and 11899 transitions. [2021-11-03 05:31:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-03 05:31:23,857 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:23,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:23,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:31:24,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:31:24,058 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:31:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:24,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1589939729, now seen corresponding path program 1 times [2021-11-03 05:31:24,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:24,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737380538] [2021-11-03 05:31:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:24,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:24,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:24,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:24,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:31:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:29,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1831 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:29,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:29,369 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 05:31:29,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:29,654 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 05:31:29,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:29,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737380538] [2021-11-03 05:31:29,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737380538] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:29,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:29,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:31:29,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633479545] [2021-11-03 05:31:29,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:31:29,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:31:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:29,665 INFO L87 Difference]: Start difference. First operand 9331 states and 11899 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 05:31:32,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:31:32,983 INFO L93 Difference]: Finished difference Result 24517 states and 31352 transitions. [2021-11-03 05:31:32,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:31:32,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-03 05:31:32,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:31:33,081 INFO L225 Difference]: With dead ends: 24517 [2021-11-03 05:31:33,081 INFO L226 Difference]: Without dead ends: 15254 [2021-11-03 05:31:33,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15254 states. [2021-11-03 05:31:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15254 to 15218. [2021-11-03 05:31:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15218 states, 15210 states have (on average 1.2786324786324785) internal successors, (19448), 15217 states have internal predecessors, (19448), 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 05:31:33,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15218 states to 15218 states and 19448 transitions. [2021-11-03 05:31:33,806 INFO L78 Accepts]: Start accepts. Automaton has 15218 states and 19448 transitions. Word has length 67 [2021-11-03 05:31:33,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:31:33,807 INFO L470 AbstractCegarLoop]: Abstraction has 15218 states and 19448 transitions. [2021-11-03 05:31:33,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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 05:31:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 15218 states and 19448 transitions. [2021-11-03 05:31:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:31:33,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:33,811 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:33,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:31:34,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:31:34,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:31:34,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:34,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1381844700, now seen corresponding path program 1 times [2021-11-03 05:31:34,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:34,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208763208] [2021-11-03 05:31:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:34,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:34,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:34,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:34,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:31:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:38,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:38,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:39,161 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 05:31:39,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:39,466 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 05:31:39,467 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:39,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208763208] [2021-11-03 05:31:39,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208763208] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:39,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:39,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:31:39,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18920090] [2021-11-03 05:31:39,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:31:39,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:39,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:31:39,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:31:39,469 INFO L87 Difference]: Start difference. First operand 15218 states and 19448 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 05:31:43,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:31:43,159 INFO L93 Difference]: Finished difference Result 39667 states and 50776 transitions. [2021-11-03 05:31:43,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:31:43,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-03 05:31:43,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:31:43,260 INFO L225 Difference]: With dead ends: 39667 [2021-11-03 05:31:43,260 INFO L226 Difference]: Without dead ends: 24517 [2021-11-03 05:31:43,293 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:31:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24517 states. [2021-11-03 05:31:44,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24517 to 24229. [2021-11-03 05:31:44,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24229 states, 24221 states have (on average 1.2806242516824244) internal successors, (31018), 24228 states have internal predecessors, (31018), 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 05:31:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24229 states to 24229 states and 31018 transitions. [2021-11-03 05:31:44,428 INFO L78 Accepts]: Start accepts. Automaton has 24229 states and 31018 transitions. Word has length 75 [2021-11-03 05:31:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:31:44,430 INFO L470 AbstractCegarLoop]: Abstraction has 24229 states and 31018 transitions. [2021-11-03 05:31:44,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 05:31:44,432 INFO L276 IsEmpty]: Start isEmpty. Operand 24229 states and 31018 transitions. [2021-11-03 05:31:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-03 05:31:44,437 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:44,437 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:44,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:31:44,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:31:44,652 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:31:44,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:44,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1158390749, now seen corresponding path program 1 times [2021-11-03 05:31:44,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:44,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387504337] [2021-11-03 05:31:44,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:44,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:44,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:44,660 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:44,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:31:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:31:50,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:31:50,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:31:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:50,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:31:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:31:50,896 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:31:50,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387504337] [2021-11-03 05:31:50,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387504337] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:31:50,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:31:50,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:31:50,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84789215] [2021-11-03 05:31:50,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:31:50,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:31:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:31:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:50,898 INFO L87 Difference]: Start difference. First operand 24229 states and 31018 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 05:31:54,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:31:54,567 INFO L93 Difference]: Finished difference Result 56336 states and 72246 transitions. [2021-11-03 05:31:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:31:54,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 104 [2021-11-03 05:31:54,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:31:54,669 INFO L225 Difference]: With dead ends: 56336 [2021-11-03 05:31:54,669 INFO L226 Difference]: Without dead ends: 32175 [2021-11-03 05:31:54,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:31:54,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32175 states. [2021-11-03 05:31:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32175 to 32115. [2021-11-03 05:31:56,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32115 states, 32107 states have (on average 1.2819634347650044) internal successors, (41160), 32114 states have internal predecessors, (41160), 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 05:31:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32115 states to 32115 states and 41160 transitions. [2021-11-03 05:31:56,078 INFO L78 Accepts]: Start accepts. Automaton has 32115 states and 41160 transitions. Word has length 104 [2021-11-03 05:31:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:31:56,078 INFO L470 AbstractCegarLoop]: Abstraction has 32115 states and 41160 transitions. [2021-11-03 05:31:56,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 05:31:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 32115 states and 41160 transitions. [2021-11-03 05:31:56,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-03 05:31:56,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:31:56,085 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:31:56,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:31:56,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:31:56,308 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:31:56,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:31:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash 166162705, now seen corresponding path program 1 times [2021-11-03 05:31:56,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:31:56,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979581387] [2021-11-03 05:31:56,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:31:56,313 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:31:56,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:31:56,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:31:56,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:32:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:01,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:32:01,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:32:02,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:32:02,584 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:02,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979581387] [2021-11-03 05:32:02,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979581387] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:02,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:02,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:32:02,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779373709] [2021-11-03 05:32:02,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:02,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:02,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:02,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:02,587 INFO L87 Difference]: Start difference. First operand 32115 states and 41160 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 05:32:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:06,603 INFO L93 Difference]: Finished difference Result 72120 states and 92542 transitions. [2021-11-03 05:32:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 142 [2021-11-03 05:32:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:06,687 INFO L225 Difference]: With dead ends: 72120 [2021-11-03 05:32:06,687 INFO L226 Difference]: Without dead ends: 40073 [2021-11-03 05:32:06,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:06,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40073 states. [2021-11-03 05:32:08,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40073 to 40013. [2021-11-03 05:32:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40013 states, 40005 states have (on average 1.2829896262967129) internal successors, (51326), 40012 states have internal predecessors, (51326), 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 05:32:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40013 states to 40013 states and 51326 transitions. [2021-11-03 05:32:08,479 INFO L78 Accepts]: Start accepts. Automaton has 40013 states and 51326 transitions. Word has length 142 [2021-11-03 05:32:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:08,479 INFO L470 AbstractCegarLoop]: Abstraction has 40013 states and 51326 transitions. [2021-11-03 05:32:08,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 05:32:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 40013 states and 51326 transitions. [2021-11-03 05:32:08,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-03 05:32:08,486 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:08,486 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:08,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:08,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:08,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:32:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash -851563761, now seen corresponding path program 1 times [2021-11-03 05:32:08,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:08,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134881239] [2021-11-03 05:32:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:08,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:08,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:08,713 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:08,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:32:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:13,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:32:13,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:32:14,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:32:14,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:14,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134881239] [2021-11-03 05:32:14,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134881239] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:14,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:14,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:32:14,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988544070] [2021-11-03 05:32:14,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:14,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:14,753 INFO L87 Difference]: Start difference. First operand 40013 states and 51326 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 05:32:19,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:19,000 INFO L93 Difference]: Finished difference Result 87874 states and 112790 transitions. [2021-11-03 05:32:19,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:19,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 148 [2021-11-03 05:32:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:19,083 INFO L225 Difference]: With dead ends: 87874 [2021-11-03 05:32:19,083 INFO L226 Difference]: Without dead ends: 47929 [2021-11-03 05:32:19,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47929 states. [2021-11-03 05:32:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47929 to 47869. [2021-11-03 05:32:21,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47869 states, 47861 states have (on average 1.283299554961242) internal successors, (61420), 47868 states have internal predecessors, (61420), 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 05:32:21,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47869 states to 47869 states and 61420 transitions. [2021-11-03 05:32:21,199 INFO L78 Accepts]: Start accepts. Automaton has 47869 states and 61420 transitions. Word has length 148 [2021-11-03 05:32:21,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:21,200 INFO L470 AbstractCegarLoop]: Abstraction has 47869 states and 61420 transitions. [2021-11-03 05:32:21,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 05:32:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand 47869 states and 61420 transitions. [2021-11-03 05:32:21,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-03 05:32:21,208 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:21,208 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:21,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:21,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:21,432 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:32:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:21,433 INFO L85 PathProgramCache]: Analyzing trace with hash 146231410, now seen corresponding path program 1 times [2021-11-03 05:32:21,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:21,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97909236] [2021-11-03 05:32:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:21,436 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:21,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:21,437 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:21,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:32:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:26,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 2129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:32:26,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 05:32:27,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 05:32:27,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:27,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [97909236] [2021-11-03 05:32:27,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [97909236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:27,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:27,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:32:27,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761585110] [2021-11-03 05:32:27,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:32:27,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:32:27,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:27,861 INFO L87 Difference]: Start difference. First operand 47869 states and 61420 transitions. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 05:32:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:32:33,160 INFO L93 Difference]: Finished difference Result 103628 states and 133038 transitions. [2021-11-03 05:32:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:32:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 189 [2021-11-03 05:32:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:32:33,250 INFO L225 Difference]: With dead ends: 103628 [2021-11-03 05:32:33,250 INFO L226 Difference]: Without dead ends: 55827 [2021-11-03 05:32:33,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:32:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55827 states. [2021-11-03 05:32:35,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55827 to 55767. [2021-11-03 05:32:36,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55767 states, 55759 states have (on average 1.2838465539195467) internal successors, (71586), 55766 states have internal predecessors, (71586), 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 05:32:36,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55767 states to 55767 states and 71586 transitions. [2021-11-03 05:32:36,141 INFO L78 Accepts]: Start accepts. Automaton has 55767 states and 71586 transitions. Word has length 189 [2021-11-03 05:32:36,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:32:36,142 INFO L470 AbstractCegarLoop]: Abstraction has 55767 states and 71586 transitions. [2021-11-03 05:32:36,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 05:32:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand 55767 states and 71586 transitions. [2021-11-03 05:32:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-03 05:32:36,155 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:32:36,156 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:32:36,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:32:36,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:32:36,372 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-11-03 05:32:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:32:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1501729667, now seen corresponding path program 1 times [2021-11-03 05:32:36,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:32:36,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036051941] [2021-11-03 05:32:36,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:32:36,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:32:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:32:36,378 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:32:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e7edc7a-91b1-482a-8795-a882485600f7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:32:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:32:41,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:32:41,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:32:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 05:32:42,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:32:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 05:32:43,728 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:32:43,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2036051941] [2021-11-03 05:32:43,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2036051941] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:32:43,728 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:32:43,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-03 05:32:43,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325621855] [2021-11-03 05:32:43,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:32:43,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:32:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:32:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:32:43,730 INFO L87 Difference]: Start difference. First operand 55767 states and 71586 transitions. Second operand has 9 states, 9 states have (on average 19.22222222222222) internal successors, (173), 9 states have internal predecessors, (173), 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)