./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:57:05,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:57:05,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:57:05,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:57:05,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:57:05,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:57:05,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:57:05,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:57:05,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:57:05,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:57:05,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:57:05,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:57:05,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:57:05,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:57:05,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:57:05,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:57:05,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:57:05,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:57:05,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:57:05,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:57:05,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:57:05,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:57:05,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:57:05,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:57:05,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:57:05,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:57:05,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:57:05,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:57:05,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:57:05,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:57:05,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:57:05,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:57:05,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:57:05,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:57:05,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:57:05,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:57:05,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:57:05,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:57:05,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:57:05,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:57:05,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:57:05,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:57:05,991 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:57:05,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:57:05,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:57:05,993 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:57:05,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:57:05,994 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:57:05,994 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:57:05,994 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:57:06,000 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:57:06,001 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:57:06,002 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:57:06,002 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:57:06,002 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:57:06,002 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:57:06,003 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:57:06,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:57:06,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:57:06,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:57:06,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:57:06,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:57:06,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:57:06,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:57:06,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:57:06,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:57:06,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:57:06,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:57:06,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:57:06,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:57:06,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:57:06,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:57:06,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:57:06,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:57:06,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:57:06,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:57:06,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:57:06,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:57:06,010 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 [2021-11-07 00:57:06,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:57:06,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:57:06,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:57:06,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:57:06,352 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:57:06,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2021-11-07 00:57:06,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/9ebb9f3ad/df35bfa636224e2e9b0fc93be084b19d/FLAG896f9b93b [2021-11-07 00:57:07,288 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:57:07,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2021-11-07 00:57:07,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/9ebb9f3ad/df35bfa636224e2e9b0fc93be084b19d/FLAG896f9b93b [2021-11-07 00:57:07,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/9ebb9f3ad/df35bfa636224e2e9b0fc93be084b19d [2021-11-07 00:57:07,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:57:07,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:57:07,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:57:07,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:57:07,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:57:07,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:07" (1/1) ... [2021-11-07 00:57:07,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6778053d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:07, skipping insertion in model container [2021-11-07 00:57:07,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:07" (1/1) ... [2021-11-07 00:57:07,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:57:07,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:57:08,926 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 00:57:08,934 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 00:57:08,966 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 00:57:08,983 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 00:57:08,989 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 00:57:09,002 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 00:57:09,009 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 00:57:09,080 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 00:57:09,080 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 00:57:09,102 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2021-11-07 00:57:09,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:57:09,304 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 00:57:09,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46c4d908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:09, skipping insertion in model container [2021-11-07 00:57:09,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:57:09,305 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:57:09,307 INFO L168 Benchmark]: Toolchain (without parser) took 1470.55 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 55.3 MB in the beginning and 77.7 MB in the end (delta: -22.4 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:09,307 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 67.7 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:57:09,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1467.36 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 55.1 MB in the beginning and 77.7 MB in the end (delta: -22.6 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:57:09,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 67.7 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1467.36 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 55.1 MB in the beginning and 77.7 MB in the end (delta: -22.6 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3843]: 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:57:11,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:57:11,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:57:11,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:57:11,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:57:11,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:57:11,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:57:11,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:57:11,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:57:11,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:57:11,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:57:11,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:57:11,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:57:11,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:57:11,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:57:11,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:57:11,644 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:57:11,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:57:11,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:57:11,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:57:11,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:57:11,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:57:11,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:57:11,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:57:11,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:57:11,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:57:11,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:57:11,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:57:11,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:57:11,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:57:11,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:57:11,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:57:11,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:57:11,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:57:11,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:57:11,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:57:11,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:57:11,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:57:11,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:57:11,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:57:11,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:57:11,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:57:11,735 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:57:11,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:57:11,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:57:11,737 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:57:11,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:57:11,737 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:57:11,738 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:57:11,738 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:57:11,738 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:57:11,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:57:11,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:57:11,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:57:11,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:57:11,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:57:11,742 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:57:11,742 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:57:11,742 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:57:11,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:57:11,743 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:57:11,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:57:11,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:57:11,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:57:11,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:57:11,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:57:11,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:57:11,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:57:11,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:57:11,745 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:57:11,745 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:57:11,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:57:11,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:57:11,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:57:11,746 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32c3d0de0693c88d7932ff8b6e02d1235a8aa90cfbd4ebc203b8adf917998be1 [2021-11-07 00:57:12,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:57:12,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:57:12,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:57:12,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:57:12,214 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:57:12,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2021-11-07 00:57:12,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/018e3b6c7/5dfb500c99d246b3be235e3d6f269d56/FLAG6291ae9fc [2021-11-07 00:57:13,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:57:13,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2021-11-07 00:57:13,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/018e3b6c7/5dfb500c99d246b3be235e3d6f269d56/FLAG6291ae9fc [2021-11-07 00:57:13,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/data/018e3b6c7/5dfb500c99d246b3be235e3d6f269d56 [2021-11-07 00:57:13,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:57:13,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:57:13,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:57:13,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:57:13,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:57:13,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:13" (1/1) ... [2021-11-07 00:57:13,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ef032d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:13, skipping insertion in model container [2021-11-07 00:57:13,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:57:13" (1/1) ... [2021-11-07 00:57:13,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:57:13,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:57:14,611 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2021-11-07 00:57:14,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:57:14,863 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:57:14,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:57:15,129 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2021-11-07 00:57:15,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:57:15,197 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:57:15,436 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_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2021-11-07 00:57:15,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:57:15,875 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:57:15,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15 WrapperNode [2021-11-07 00:57:15,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:57:15,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:57:15,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:57:15,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:57:15,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:57:16,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:57:16,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:57:16,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:57:16,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:16,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:57:16,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:57:16,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:57:16,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:57:16,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (1/1) ... [2021-11-07 00:57:17,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:57:17,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:57:17,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:57:17,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:57:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:57:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:57:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:57:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:57:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:57:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:57:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-07 00:57:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:57:17,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:00:33,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:00:33,728 INFO L299 CfgBuilder]: Removed 1329 assume(true) statements. [2021-11-07 01:00:33,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:33 BoogieIcfgContainer [2021-11-07 01:00:33,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:00:33,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:00:33,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:00:33,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:00:33,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:57:13" (1/3) ... [2021-11-07 01:00:33,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397e0e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:33, skipping insertion in model container [2021-11-07 01:00:33,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:57:15" (2/3) ... [2021-11-07 01:00:33,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397e0e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:00:33, skipping insertion in model container [2021-11-07 01:00:33,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:00:33" (3/3) ... [2021-11-07 01:00:33,745 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2021-11-07 01:00:33,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:00:33,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 01:00:33,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:00:33,826 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 01:00:33,826 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 01:00:33,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 1424 states, 1412 states have (on average 1.4121813031161472) internal successors, (1994), 1423 states have internal predecessors, (1994), 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 01:00:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:00:33,886 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:33,887 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:33,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:00:33,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash 754127617, now seen corresponding path program 1 times [2021-11-07 01:00:33,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:33,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375854006] [2021-11-07 01:00:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:33,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:33,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:33,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:34,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:01:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:38,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 14329 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:01:38,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:38,624 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 01:01:38,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:38,752 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 01:01:38,753 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:01:38,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375854006] [2021-11-07 01:01:38,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375854006] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:01:38,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:01:38,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:01:38,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646894482] [2021-11-07 01:01:38,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:01:38,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:01:38,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:01:38,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:01:38,796 INFO L87 Difference]: Start difference. First operand has 1424 states, 1412 states have (on average 1.4121813031161472) internal successors, (1994), 1423 states have internal predecessors, (1994), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 01:01:44,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:01:44,962 INFO L93 Difference]: Finished difference Result 4138 states and 5781 transitions. [2021-11-07 01:01:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:01:44,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 01:01:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:01:44,994 INFO L225 Difference]: With dead ends: 4138 [2021-11-07 01:01:44,995 INFO L226 Difference]: Without dead ends: 2702 [2021-11-07 01:01:45,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 01:01:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-11-07 01:01:45,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2686. [2021-11-07 01:01:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2675 states have (on average 1.3872897196261682) internal successors, (3711), 2685 states have internal predecessors, (3711), 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 01:01:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 3711 transitions. [2021-11-07 01:01:45,152 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 3711 transitions. Word has length 13 [2021-11-07 01:01:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:01:45,152 INFO L470 AbstractCegarLoop]: Abstraction has 2686 states and 3711 transitions. [2021-11-07 01:01:45,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 01:01:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 3711 transitions. [2021-11-07 01:01:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 01:01:45,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:01:45,154 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:01:45,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:01:45,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:01:45,378 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:01:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:01:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1936008622, now seen corresponding path program 1 times [2021-11-07 01:01:45,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:01:45,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134892250] [2021-11-07 01:01:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:01:45,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:01:45,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:01:45,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:01:45,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:02:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:49,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 14320 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:02:49,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:49,735 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 01:02:49,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:49,897 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 01:02:49,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:49,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134892250] [2021-11-07 01:02:49,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134892250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:49,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:49,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:02:49,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038360244] [2021-11-07 01:02:49,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:02:49,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:02:49,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:02:49,910 INFO L87 Difference]: Start difference. First operand 2686 states and 3711 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 01:03:00,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:00,833 INFO L93 Difference]: Finished difference Result 9055 states and 12535 transitions. [2021-11-07 01:03:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:00,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 14 [2021-11-07 01:03:00,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:00,886 INFO L225 Difference]: With dead ends: 9055 [2021-11-07 01:03:00,895 INFO L226 Difference]: Without dead ends: 6372 [2021-11-07 01:03:00,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 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 01:03:00,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6372 states. [2021-11-07 01:03:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6372 to 6352. [2021-11-07 01:03:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6352 states, 6341 states have (on average 1.3896861693739158) internal successors, (8812), 6351 states have internal predecessors, (8812), 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 01:03:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 8812 transitions. [2021-11-07 01:03:01,228 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 8812 transitions. Word has length 14 [2021-11-07 01:03:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:01,228 INFO L470 AbstractCegarLoop]: Abstraction has 6352 states and 8812 transitions. [2021-11-07 01:03:01,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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 01:03:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 8812 transitions. [2021-11-07 01:03:01,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:03:01,236 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:01,237 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:01,462 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2021-11-07 01:03:01,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:01,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:01,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:03:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:01,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1032247073, now seen corresponding path program 1 times [2021-11-07 01:03:01,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:01,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842046281] [2021-11-07 01:03:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:01,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:01,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:01,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:04:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:05,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 14348 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:04:05,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:06,266 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 01:04:06,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:06,527 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 01:04:06,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:06,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842046281] [2021-11-07 01:04:06,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842046281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:06,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:06,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:04:06,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958642289] [2021-11-07 01:04:06,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:04:06,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:04:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:04:06,531 INFO L87 Difference]: Start difference. First operand 6352 states and 8812 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 01:04:06,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:06,820 INFO L93 Difference]: Finished difference Result 11516 states and 15981 transitions. [2021-11-07 01:04:06,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:04:06,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 22 [2021-11-07 01:04:06,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:06,861 INFO L225 Difference]: With dead ends: 11516 [2021-11-07 01:04:06,861 INFO L226 Difference]: Without dead ends: 6352 [2021-11-07 01:04:06,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 1 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 01:04:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6352 states. [2021-11-07 01:04:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6352 to 6352. [2021-11-07 01:04:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6352 states, 6341 states have (on average 1.3890553540451034) internal successors, (8808), 6351 states have internal predecessors, (8808), 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 01:04:07,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 8808 transitions. [2021-11-07 01:04:07,362 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 8808 transitions. Word has length 22 [2021-11-07 01:04:07,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:07,362 INFO L470 AbstractCegarLoop]: Abstraction has 6352 states and 8808 transitions. [2021-11-07 01:04:07,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 01:04:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 8808 transitions. [2021-11-07 01:04:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:04:07,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:07,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:04:07,589 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2021-11-07 01:04:07,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:07,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:07,634 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:04:07,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1290412511, now seen corresponding path program 1 times [2021-11-07 01:04:07,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:07,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263414125] [2021-11-07 01:04:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:07,700 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:07,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:07,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:07,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:05:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:13,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 14348 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:05:13,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:13,694 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 01:05:13,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:14,015 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 01:05:14,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:14,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263414125] [2021-11-07 01:05:14,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263414125] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:14,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:14,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:05:14,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737974279] [2021-11-07 01:05:14,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:05:14,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:14,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:05:14,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:05:14,018 INFO L87 Difference]: Start difference. First operand 6352 states and 8808 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 01:05:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:14,258 INFO L93 Difference]: Finished difference Result 6352 states and 8808 transitions. [2021-11-07 01:05:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:05:14,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 22 [2021-11-07 01:05:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:14,298 INFO L225 Difference]: With dead ends: 6352 [2021-11-07 01:05:14,298 INFO L226 Difference]: Without dead ends: 6350 [2021-11-07 01:05:14,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 01:05:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6350 states. [2021-11-07 01:05:14,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6350 to 6350. [2021-11-07 01:05:14,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6350 states, 6340 states have (on average 1.3889589905362776) internal successors, (8806), 6349 states have internal predecessors, (8806), 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 01:05:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6350 states to 6350 states and 8806 transitions. [2021-11-07 01:05:14,700 INFO L78 Accepts]: Start accepts. Automaton has 6350 states and 8806 transitions. Word has length 22 [2021-11-07 01:05:14,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:14,701 INFO L470 AbstractCegarLoop]: Abstraction has 6350 states and 8806 transitions. [2021-11-07 01:05:14,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 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 01:05:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6350 states and 8806 transitions. [2021-11-07 01:05:14,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:05:14,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:14,703 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:14,919 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2021-11-07 01:05:14,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:14,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:14,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:05:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:14,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1348092953, now seen corresponding path program 1 times [2021-11-07 01:05:15,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:15,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296258129] [2021-11-07 01:05:15,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:15,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:15,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:15,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:15,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:06:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:20,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 14349 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:06:20,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:21,240 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 01:06:21,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:21,543 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 01:06:21,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:21,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296258129] [2021-11-07 01:06:21,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296258129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:21,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:21,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:06:21,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225555277] [2021-11-07 01:06:21,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:06:21,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:21,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:06:21,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:06:21,546 INFO L87 Difference]: Start difference. First operand 6350 states and 8806 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 01:06:21,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:21,827 INFO L93 Difference]: Finished difference Result 6350 states and 8806 transitions. [2021-11-07 01:06:21,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:06:21,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2021-11-07 01:06:21,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:21,949 INFO L225 Difference]: With dead ends: 6350 [2021-11-07 01:06:21,950 INFO L226 Difference]: Without dead ends: 6348 [2021-11-07 01:06:21,952 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 01:06:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2021-11-07 01:06:22,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 6348. [2021-11-07 01:06:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 6339 states have (on average 1.3888625966240733) internal successors, (8804), 6347 states have internal predecessors, (8804), 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 01:06:22,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 8804 transitions. [2021-11-07 01:06:22,347 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 8804 transitions. Word has length 23 [2021-11-07 01:06:22,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:22,348 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 8804 transitions. [2021-11-07 01:06:22,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 01:06:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 8804 transitions. [2021-11-07 01:06:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:06:22,351 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:22,351 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:22,574 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-07 01:06:22,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:06:22,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:22,635 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:06:22,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1158780631, now seen corresponding path program 1 times [2021-11-07 01:06:22,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:22,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960790975] [2021-11-07 01:06:22,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:22,680 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:22,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:22,681 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:22,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:07:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:29,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 14350 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:07:29,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:30,328 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 01:07:30,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:30,648 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 01:07:30,648 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:30,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960790975] [2021-11-07 01:07:30,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960790975] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:30,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:30,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:07:30,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045765902] [2021-11-07 01:07:30,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:07:30,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:30,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:07:30,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:07:30,651 INFO L87 Difference]: Start difference. First operand 6348 states and 8804 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 01:07:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:31,246 INFO L93 Difference]: Finished difference Result 12868 states and 17864 transitions. [2021-11-07 01:07:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:07:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 01:07:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:31,270 INFO L225 Difference]: With dead ends: 12868 [2021-11-07 01:07:31,270 INFO L226 Difference]: Without dead ends: 7702 [2021-11-07 01:07:31,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 01:07:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7702 states. [2021-11-07 01:07:31,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 6503. [2021-11-07 01:07:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6503 states, 6494 states have (on average 1.3894364028333848) internal successors, (9023), 6502 states have internal predecessors, (9023), 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 01:07:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6503 states to 6503 states and 9023 transitions. [2021-11-07 01:07:31,649 INFO L78 Accepts]: Start accepts. Automaton has 6503 states and 9023 transitions. Word has length 24 [2021-11-07 01:07:31,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:31,650 INFO L470 AbstractCegarLoop]: Abstraction has 6503 states and 9023 transitions. [2021-11-07 01:07:31,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 01:07:31,650 INFO L276 IsEmpty]: Start isEmpty. Operand 6503 states and 9023 transitions. [2021-11-07 01:07:31,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 01:07:31,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:31,652 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] [2021-11-07 01:07:31,866 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2021-11-07 01:07:31,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:31,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:31,903 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:07:31,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1100373169, now seen corresponding path program 1 times [2021-11-07 01:07:31,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:31,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103024333] [2021-11-07 01:07:31,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:31,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:31,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:31,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:32,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:08:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:40,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 14411 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:08:40,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:41,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:42,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:42,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103024333] [2021-11-07 01:08:42,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103024333] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:42,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:42,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:08:42,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494634533] [2021-11-07 01:08:42,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:08:42,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:42,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:08:42,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:08:42,517 INFO L87 Difference]: Start difference. First operand 6503 states and 9023 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 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 01:09:48,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:09:48,730 INFO L93 Difference]: Finished difference Result 27568 states and 38262 transitions. [2021-11-07 01:09:48,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 01:09:48,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 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 35 [2021-11-07 01:09:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:09:48,794 INFO L225 Difference]: With dead ends: 27568 [2021-11-07 01:09:48,794 INFO L226 Difference]: Without dead ends: 22195 [2021-11-07 01:09:48,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 01:09:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22195 states. [2021-11-07 01:09:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22195 to 6495. [2021-11-07 01:09:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6486 states have (on average 1.387141535615171) internal successors, (8997), 6494 states have internal predecessors, (8997), 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 01:09:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 8997 transitions. [2021-11-07 01:09:49,472 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 8997 transitions. Word has length 35 [2021-11-07 01:09:49,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:09:49,474 INFO L470 AbstractCegarLoop]: Abstraction has 6495 states and 8997 transitions. [2021-11-07 01:09:49,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 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 01:09:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 8997 transitions. [2021-11-07 01:09:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 01:09:49,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:49,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:09:49,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:49,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:49,702 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:09:49,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash 491641491, now seen corresponding path program 1 times [2021-11-07 01:09:49,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:49,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496280031] [2021-11-07 01:09:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:49,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:49,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:49,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:49,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8315f5-0b15-4e06-8294-4cb2ea6bce29/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:10:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:10:55,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 14560 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:10:55,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:10:56,142 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 01:10:56,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:10:56,555 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 01:10:56,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:10:56,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496280031] [2021-11-07 01:10:56,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496280031] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:10:56,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:10:56,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:10:56,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476000844] [2021-11-07 01:10:56,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:10:56,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:10:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:10:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:10:56,557 INFO L87 Difference]: Start difference. First operand 6495 states and 8997 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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)