./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8 --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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:28,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:28,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:28,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:28,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:28,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:28,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:28,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:28,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:28,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:28,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:28,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:28,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:28,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:28,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:28,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:28,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:28,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:28,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:28,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:28,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:28,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:28,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:28,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:28,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:28,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:28,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:28,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:28,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:28,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:28,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:28,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:28,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:28,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:28,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:28,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:28,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:28,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:28,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:28,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:28,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:28,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:58:28,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:28,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:28,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:28,855 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:28,856 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:28,856 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:28,856 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:58:28,856 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:28,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:28,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:58:28,864 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:58:28,865 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:28,865 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:58:28,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:58:28,866 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:58:28,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:28,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:58:28,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:28,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:28,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:28,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:28,868 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:28,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:28,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:28,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:28,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:28,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:28,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:28,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:28,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:28,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:28,873 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:58:28,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:58:28,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:28,874 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:28,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:28,874 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_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-07 00:58:29,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:29,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:29,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:29,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:29,253 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:29,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-07 00:58:29,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/6633b58db/761307f16c6a46d3afb8b71474d969f9/FLAGa7c3a07dc [2021-11-07 00:58:30,202 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:30,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-07 00:58:30,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/6633b58db/761307f16c6a46d3afb8b71474d969f9/FLAGa7c3a07dc [2021-11-07 00:58:30,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/6633b58db/761307f16c6a46d3afb8b71474d969f9 [2021-11-07 00:58:30,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:30,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:30,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:30,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:30,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:30,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:30" (1/1) ... [2021-11-07 00:58:30,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c616c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:30, skipping insertion in model container [2021-11-07 00:58:30,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:30" (1/1) ... [2021-11-07 00:58:30,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:30,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:31,840 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:31,871 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:31,934 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:31,965 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,032 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,038 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,086 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,375 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:58:32,483 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_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-07 00:58:32,640 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 00:58:32,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:32,677 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) [2021-11-07 00:58:32,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6480f2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:32, skipping insertion in model container [2021-11-07 00:58:32,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:32,678 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:58:32,681 INFO L168 Benchmark]: Toolchain (without parser) took 2001.92 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 65.3 MB in the beginning and 63.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:32,682 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:58:32,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1999.22 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 65.0 MB in the beginning and 63.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:58:32,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1999.22 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 65.0 MB in the beginning and 63.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3484]: 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_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8 --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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:58:35,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:58:35,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:58:35,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:58:35,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:58:35,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:58:35,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:58:35,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:58:35,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:58:35,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:58:35,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:58:35,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:58:35,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:58:35,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:58:35,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:58:35,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:58:35,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:58:35,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:58:35,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:58:35,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:58:35,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:58:35,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:58:35,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:58:35,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:58:35,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:58:35,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:58:35,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:58:35,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:58:35,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:58:35,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:58:35,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:58:35,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:58:35,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:58:35,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:58:35,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:58:35,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:58:35,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:58:35,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:58:35,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:58:35,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:58:35,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:58:35,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:58:35,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:58:35,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:58:35,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:58:35,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:58:35,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:58:35,286 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:58:35,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:58:35,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:58:35,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:58:35,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:58:35,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:58:35,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:58:35,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:58:35,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:58:35,292 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:58:35,292 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:58:35,292 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:58:35,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:58:35,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:58:35,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:58:35,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:58:35,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:58:35,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:58:35,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:35,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:58:35,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:58:35,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:58:35,295 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:58:35,295 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:58:35,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:58:35,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:58:35,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:58:35,296 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_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-07 00:58:35,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:58:35,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:58:35,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:58:35,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:58:35,699 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:58:35,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-07 00:58:35,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/22be27c57/772b37b6997f40aca8fa0aab338a368d/FLAG6cac38996 [2021-11-07 00:58:36,637 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:58:36,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-07 00:58:36,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/22be27c57/772b37b6997f40aca8fa0aab338a368d/FLAG6cac38996 [2021-11-07 00:58:37,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/data/22be27c57/772b37b6997f40aca8fa0aab338a368d [2021-11-07 00:58:37,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:58:37,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:58:37,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:37,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:58:37,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:58:37,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:37" (1/1) ... [2021-11-07 00:58:37,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218b1920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:37, skipping insertion in model container [2021-11-07 00:58:37,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:58:37" (1/1) ... [2021-11-07 00:58:37,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:58:37,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:38,953 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_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-07 00:58:39,081 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 00:58:39,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:39,129 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:58:39,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:58:39,619 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-07 00:58:39,644 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 00:58:39,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:39,679 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:58:40,070 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_10720f90-5050-43e6-93b4-6e8f43837457/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-11-07 00:58:40,087 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-07 00:58:40,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:58:40,209 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:58:40,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40 WrapperNode [2021-11-07 00:58:40,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:58:40,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:40,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:58:40,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:58:40,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:58:40,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:58:40,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:58:40,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:58:40,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:58:40,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:58:40,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:58:40,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:58:40,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (1/1) ... [2021-11-07 00:58:40,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:58:40,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:58:40,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:58:40,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:58:40,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:58:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:58:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:58:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 00:58:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:58:40,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:58:40,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:58:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:58:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 00:58:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 00:58:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 00:58:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 00:58:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:58:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:59:03,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:59:03,446 INFO L299 CfgBuilder]: Removed 182 assume(true) statements. [2021-11-07 00:59:03,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:03 BoogieIcfgContainer [2021-11-07 00:59:03,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:59:03,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:59:03,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:59:03,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:59:03,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:58:37" (1/3) ... [2021-11-07 00:59:03,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d412cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:03, skipping insertion in model container [2021-11-07 00:59:03,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:58:40" (2/3) ... [2021-11-07 00:59:03,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d412cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:03, skipping insertion in model container [2021-11-07 00:59:03,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:03" (3/3) ... [2021-11-07 00:59:03,457 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-07 00:59:03,463 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:59:03,463 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 00:59:03,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:59:03,521 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 [2021-11-07 00:59:03,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 00:59:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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) [2021-11-07 00:59:03,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 00:59:03,549 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:03,550 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:03,550 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:03,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1013367014, now seen corresponding path program 1 times [2021-11-07 00:59:03,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:03,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630185459] [2021-11-07 00:59:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:03,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:03,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:03,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:03,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:59:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:08,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:08,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:08,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:08,539 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:08,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630185459] [2021-11-07 00:59:08,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630185459] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:08,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:08,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:08,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281511244] [2021-11-07 00:59:08,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:08,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:08,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:08,563 INFO L87 Difference]: Start difference. First operand has 246 states, 234 states have (on average 1.5427350427350428) internal successors, (361), 245 states have internal predecessors, (361), 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 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-07 00:59:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:09,030 INFO L93 Difference]: Finished difference Result 576 states and 851 transitions. [2021-11-07 00:59:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:09,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-11-07 00:59:09,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:09,047 INFO L225 Difference]: With dead ends: 576 [2021-11-07 00:59:09,047 INFO L226 Difference]: Without dead ends: 325 [2021-11-07 00:59:09,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:09,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-07 00:59:09,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 306. [2021-11-07 00:59:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.5186440677966102) internal successors, (448), 305 states have internal predecessors, (448), 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) [2021-11-07 00:59:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 448 transitions. [2021-11-07 00:59:09,115 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 448 transitions. Word has length 14 [2021-11-07 00:59:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:09,116 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 448 transitions. [2021-11-07 00:59:09,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-11-07 00:59:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 448 transitions. [2021-11-07 00:59:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 00:59:09,118 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:09,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:09,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:09,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:09,340 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:09,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:09,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1696174329, now seen corresponding path program 1 times [2021-11-07 00:59:09,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:09,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1896102125] [2021-11-07 00:59:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:09,351 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:09,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:09,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:09,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:59:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:14,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:14,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:14,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:14,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:14,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1896102125] [2021-11-07 00:59:14,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1896102125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:14,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:14,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:59:14,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684633710] [2021-11-07 00:59:14,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:59:14,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:14,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:59:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:14,314 INFO L87 Difference]: Start difference. First operand 306 states and 448 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:16,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:16,917 INFO L93 Difference]: Finished difference Result 1138 states and 1697 transitions. [2021-11-07 00:59:16,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:59:16,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 00:59:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:16,928 INFO L225 Difference]: With dead ends: 1138 [2021-11-07 00:59:16,928 INFO L226 Difference]: Without dead ends: 835 [2021-11-07 00:59:16,931 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:16,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-11-07 00:59:17,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 811. [2021-11-07 00:59:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 800 states have (on average 1.54) internal successors, (1232), 810 states have internal predecessors, (1232), 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) [2021-11-07 00:59:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1232 transitions. [2021-11-07 00:59:17,017 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1232 transitions. Word has length 15 [2021-11-07 00:59:17,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:17,018 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 1232 transitions. [2021-11-07 00:59:17,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:17,018 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1232 transitions. [2021-11-07 00:59:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 00:59:17,020 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:17,020 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:17,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:17,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:17,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash -724212375, now seen corresponding path program 1 times [2021-11-07 00:59:17,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:17,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783602594] [2021-11-07 00:59:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:17,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:17,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:17,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:17,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 00:59:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:21,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 00:59:21,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:22,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:22,131 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:22,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783602594] [2021-11-07 00:59:22,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783602594] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:22,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:22,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 00:59:22,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32865746] [2021-11-07 00:59:22,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:59:22,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:22,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:59:22,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:59:22,136 INFO L87 Difference]: Start difference. First operand 811 states and 1232 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:24,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:24,568 INFO L93 Difference]: Finished difference Result 1457 states and 2198 transitions. [2021-11-07 00:59:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 00:59:24,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 00:59:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:24,575 INFO L225 Difference]: With dead ends: 1457 [2021-11-07 00:59:24,575 INFO L226 Difference]: Without dead ends: 649 [2021-11-07 00:59:24,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 00:59:24,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-11-07 00:59:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 605. [2021-11-07 00:59:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 594 states have (on average 1.5471380471380471) internal successors, (919), 604 states have internal predecessors, (919), 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) [2021-11-07 00:59:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 919 transitions. [2021-11-07 00:59:24,613 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 919 transitions. Word has length 17 [2021-11-07 00:59:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:24,614 INFO L470 AbstractCegarLoop]: Abstraction has 605 states and 919 transitions. [2021-11-07 00:59:24,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:24,615 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 919 transitions. [2021-11-07 00:59:24,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 00:59:24,616 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:24,617 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:24,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:24,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:24,840 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:24,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:24,840 INFO L85 PathProgramCache]: Analyzing trace with hash -724152793, now seen corresponding path program 1 times [2021-11-07 00:59:24,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:24,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277707048] [2021-11-07 00:59:24,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:24,847 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:24,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:24,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:24,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 00:59:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:29,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:29,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:29,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:29,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:29,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277707048] [2021-11-07 00:59:29,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [277707048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:29,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:29,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:29,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778919531] [2021-11-07 00:59:29,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:29,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:29,771 INFO L87 Difference]: Start difference. First operand 605 states and 919 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:32,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:32,195 INFO L93 Difference]: Finished difference Result 605 states and 919 transitions. [2021-11-07 00:59:32,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:32,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 00:59:32,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:32,201 INFO L225 Difference]: With dead ends: 605 [2021-11-07 00:59:32,202 INFO L226 Difference]: Without dead ends: 603 [2021-11-07 00:59:32,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2021-11-07 00:59:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2021-11-07 00:59:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 593 states have (on average 1.5463743676222597) internal successors, (917), 602 states have internal predecessors, (917), 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) [2021-11-07 00:59:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 917 transitions. [2021-11-07 00:59:32,235 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 917 transitions. Word has length 17 [2021-11-07 00:59:32,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:32,236 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 917 transitions. [2021-11-07 00:59:32,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 917 transitions. [2021-11-07 00:59:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 00:59:32,237 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:32,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:32,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 00:59:32,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:32,460 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:32,460 INFO L85 PathProgramCache]: Analyzing trace with hash -973900918, now seen corresponding path program 1 times [2021-11-07 00:59:32,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:32,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792339256] [2021-11-07 00:59:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:32,467 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:32,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:32,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 00:59:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:37,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:37,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:37,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:37,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:37,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792339256] [2021-11-07 00:59:37,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792339256] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:37,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:37,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:37,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977136502] [2021-11-07 00:59:37,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:37,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:37,441 INFO L87 Difference]: Start difference. First operand 603 states and 917 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:39,838 INFO L93 Difference]: Finished difference Result 603 states and 917 transitions. [2021-11-07 00:59:39,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:39,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 00:59:39,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:39,843 INFO L225 Difference]: With dead ends: 603 [2021-11-07 00:59:39,844 INFO L226 Difference]: Without dead ends: 599 [2021-11-07 00:59:39,845 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-11-07 00:59:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-11-07 00:59:39,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 591 states have (on average 1.5431472081218274) internal successors, (912), 598 states have internal predecessors, (912), 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) [2021-11-07 00:59:39,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 912 transitions. [2021-11-07 00:59:39,880 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 912 transitions. Word has length 18 [2021-11-07 00:59:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:39,881 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 912 transitions. [2021-11-07 00:59:39,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 912 transitions. [2021-11-07 00:59:39,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 00:59:39,883 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:39,883 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:59:39,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 00:59:40,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:40,099 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:40,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:40,100 INFO L85 PathProgramCache]: Analyzing trace with hash -126158191, now seen corresponding path program 1 times [2021-11-07 00:59:40,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:40,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561177101] [2021-11-07 00:59:40,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:40,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:40,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:40,106 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:40,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 00:59:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:44,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:44,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:44,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:44,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:44,975 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:44,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561177101] [2021-11-07 00:59:44,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561177101] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:44,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:44,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:44,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814728664] [2021-11-07 00:59:44,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:44,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:44,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:44,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:44,977 INFO L87 Difference]: Start difference. First operand 599 states and 912 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-07 00:59:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:47,294 INFO L93 Difference]: Finished difference Result 599 states and 912 transitions. [2021-11-07 00:59:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:47,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 00:59:47,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:47,300 INFO L225 Difference]: With dead ends: 599 [2021-11-07 00:59:47,300 INFO L226 Difference]: Without dead ends: 597 [2021-11-07 00:59:47,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:47,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-11-07 00:59:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 597. [2021-11-07 00:59:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 590 states have (on average 1.5423728813559323) internal successors, (910), 596 states have internal predecessors, (910), 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) [2021-11-07 00:59:47,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 910 transitions. [2021-11-07 00:59:47,337 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 910 transitions. Word has length 19 [2021-11-07 00:59:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:47,338 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 910 transitions. [2021-11-07 00:59:47,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-11-07 00:59:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 910 transitions. [2021-11-07 00:59:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 00:59:47,339 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:47,340 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] [2021-11-07 00:59:47,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:47,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:47,556 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:47,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash 384062580, now seen corresponding path program 1 times [2021-11-07 00:59:47,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:47,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691592210] [2021-11-07 00:59:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:47,562 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:47,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:47,563 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:47,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 00:59:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:52,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:52,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:52,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:52,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:52,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:52,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691592210] [2021-11-07 00:59:52,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691592210] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:52,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:52,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:52,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88212358] [2021-11-07 00:59:52,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:52,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:52,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:52,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:52,419 INFO L87 Difference]: Start difference. First operand 597 states and 910 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-07 00:59:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:54,800 INFO L93 Difference]: Finished difference Result 864 states and 1344 transitions. [2021-11-07 00:59:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-07 00:59:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:54,807 INFO L225 Difference]: With dead ends: 864 [2021-11-07 00:59:54,807 INFO L226 Difference]: Without dead ends: 858 [2021-11-07 00:59:54,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-11-07 00:59:54,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 858. [2021-11-07 00:59:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 851 states have (on average 1.5699177438307874) internal successors, (1336), 857 states have internal predecessors, (1336), 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) [2021-11-07 00:59:54,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1336 transitions. [2021-11-07 00:59:54,850 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1336 transitions. Word has length 20 [2021-11-07 00:59:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:54,850 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1336 transitions. [2021-11-07 00:59:54,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-07 00:59:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1336 transitions. [2021-11-07 00:59:54,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 00:59:54,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:54,852 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] [2021-11-07 00:59:54,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:55,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:55,068 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -978962693, now seen corresponding path program 1 times [2021-11-07 00:59:55,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:55,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608173606] [2021-11-07 00:59:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:55,076 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:55,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:55,078 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:55,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 00:59:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:59,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:59,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:59,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:59,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608173606] [2021-11-07 00:59:59,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608173606] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:59,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:59,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:59,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671623367] [2021-11-07 00:59:59,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:59,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:59,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:59,953 INFO L87 Difference]: Start difference. First operand 858 states and 1336 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-07 01:00:02,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:02,190 INFO L93 Difference]: Finished difference Result 858 states and 1336 transitions. [2021-11-07 01:00:02,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:00:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-07 01:00:02,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:02,270 INFO L225 Difference]: With dead ends: 858 [2021-11-07 01:00:02,270 INFO L226 Difference]: Without dead ends: 844 [2021-11-07 01:00:02,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-07 01:00:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 790. [2021-11-07 01:00:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 784 states have (on average 1.5650510204081634) internal successors, (1227), 789 states have internal predecessors, (1227), 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) [2021-11-07 01:00:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1227 transitions. [2021-11-07 01:00:02,313 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1227 transitions. Word has length 21 [2021-11-07 01:00:02,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:02,315 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 1227 transitions. [2021-11-07 01:00:02,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-07 01:00:02,315 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1227 transitions. [2021-11-07 01:00:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 01:00:02,319 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:02,319 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] [2021-11-07 01:00:02,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:02,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:02,544 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:00:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash -647396756, now seen corresponding path program 1 times [2021-11-07 01:00:02,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:02,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133613408] [2021-11-07 01:00:02,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:02,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:02,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:02,547 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:02,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:00:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:07,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1550 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:07,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:00:07,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:07,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:00:07,519 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:07,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133613408] [2021-11-07 01:00:07,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133613408] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:07,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:07,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:00:07,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271117079] [2021-11-07 01:00:07,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:00:07,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:07,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:00:07,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:07,521 INFO L87 Difference]: Start difference. First operand 790 states and 1227 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:00:09,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:09,879 INFO L93 Difference]: Finished difference Result 1519 states and 2361 transitions. [2021-11-07 01:00:09,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:00:09,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 40 [2021-11-07 01:00:09,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:09,884 INFO L225 Difference]: With dead ends: 1519 [2021-11-07 01:00:09,885 INFO L226 Difference]: Without dead ends: 786 [2021-11-07 01:00:09,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2021-11-07 01:00:09,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 784. [2021-11-07 01:00:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 780 states have (on average 1.5576923076923077) internal successors, (1215), 783 states have internal predecessors, (1215), 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) [2021-11-07 01:00:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1215 transitions. [2021-11-07 01:00:09,927 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1215 transitions. Word has length 40 [2021-11-07 01:00:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:09,928 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1215 transitions. [2021-11-07 01:00:09,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:00:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1215 transitions. [2021-11-07 01:00:09,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:00:09,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:09,930 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] [2021-11-07 01:00:09,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:10,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:10,145 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:00:10,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:10,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1691861812, now seen corresponding path program 1 times [2021-11-07 01:00:10,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:10,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32223864] [2021-11-07 01:00:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:10,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:10,149 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:10,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:00:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:14,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:14,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:14,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:00:14,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:00:14,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:14,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32223864] [2021-11-07 01:00:14,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32223864] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:14,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:14,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:00:14,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286683792] [2021-11-07 01:00:14,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:00:14,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:14,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:00:14,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:14,899 INFO L87 Difference]: Start difference. First operand 784 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-07 01:00:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:17,214 INFO L93 Difference]: Finished difference Result 784 states and 1215 transitions. [2021-11-07 01:00:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:00:17,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 42 [2021-11-07 01:00:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:17,220 INFO L225 Difference]: With dead ends: 784 [2021-11-07 01:00:17,220 INFO L226 Difference]: Without dead ends: 782 [2021-11-07 01:00:17,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:17,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-11-07 01:00:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2021-11-07 01:00:17,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 779 states have (on average 1.5558408215661104) internal successors, (1212), 781 states have internal predecessors, (1212), 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) [2021-11-07 01:00:17,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1212 transitions. [2021-11-07 01:00:17,261 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1212 transitions. Word has length 42 [2021-11-07 01:00:17,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:17,263 INFO L470 AbstractCegarLoop]: Abstraction has 782 states and 1212 transitions. [2021-11-07 01:00:17,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-07 01:00:17,264 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1212 transitions. [2021-11-07 01:00:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 01:00:17,266 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:17,267 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-07 01:00:17,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:17,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:17,492 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:00:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1739223835, now seen corresponding path program 1 times [2021-11-07 01:00:17,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:17,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006685264] [2021-11-07 01:00:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:17,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:17,496 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:17,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10720f90-5050-43e6-93b4-6e8f43837457/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process