./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:44:48,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:44:48,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:44:48,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:44:48,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:44:48,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:44:48,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:44:48,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:44:48,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:44:48,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:44:48,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:44:48,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:44:48,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:44:48,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:44:48,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:44:48,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:44:48,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:44:48,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:44:48,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:44:48,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:44:48,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:44:48,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:44:48,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:44:48,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:44:48,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:44:48,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:44:48,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:44:48,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:44:48,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:44:48,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:44:48,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:44:48,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:44:48,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:44:48,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:44:48,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:44:48,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:44:48,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:44:48,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:44:48,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:44:48,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:44:48,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:44:48,615 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:44:48,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:44:48,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:44:48,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:44:48,660 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:44:48,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:44:48,661 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:44:48,661 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:44:48,661 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:44:48,668 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:44:48,668 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:44:48,669 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:44:48,669 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:44:48,669 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:44:48,670 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:44:48,670 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:44:48,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:44:48,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:44:48,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:44:48,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:44:48,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:44:48,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:44:48,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:44:48,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:48,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:44:48,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:44:48,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:44:48,675 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:44:48,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:44:48,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:44:48,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:44:48,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:44:48,676 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_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-03 05:44:48,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:44:49,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:44:49,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:44:49,017 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:44:49,018 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:44:49,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-03 05:44:49,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/d2ad3751d/3a8a5f84ace040ae8a194c3f55019bcc/FLAG0edcf4c05 [2021-11-03 05:44:50,016 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:44:50,017 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-03 05:44:50,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/d2ad3751d/3a8a5f84ace040ae8a194c3f55019bcc/FLAG0edcf4c05 [2021-11-03 05:44:50,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/d2ad3751d/3a8a5f84ace040ae8a194c3f55019bcc [2021-11-03 05:44:50,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:44:50,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:44:50,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:50,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:44:50,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:44:50,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:50" (1/1) ... [2021-11-03 05:44:50,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d22e7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:50, skipping insertion in model container [2021-11-03 05:44:50,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:50" (1/1) ... [2021-11-03 05:44:50,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:44:50,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:44:52,637 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:44:52,643 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:44:53,575 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-03 05:44:53,577 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-03 05:44:53,578 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-03 05:44:53,578 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-03 05:44:53,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:44:53,663 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:44:53,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52f6cd62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:53, skipping insertion in model container [2021-11-03 05:44:53,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:53,664 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:44:53,666 INFO L168 Benchmark]: Toolchain (without parser) took 3197.96 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 87.8 MB in the beginning and 58.0 MB in the end (delta: 29.8 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:53,667 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:44:53,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3195.76 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 58.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:53,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 92.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3195.76 ms. Allocated memory was 115.3 MB in the beginning and 142.6 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 58.0 MB in the end (delta: 29.5 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6159]: 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_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:44:55,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:44:55,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:44:55,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:44:55,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:44:56,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:44:56,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:44:56,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:44:56,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:44:56,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:44:56,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:44:56,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:44:56,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:44:56,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:44:56,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:44:56,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:44:56,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:44:56,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:44:56,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:44:56,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:44:56,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:44:56,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:44:56,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:44:56,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:44:56,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:44:56,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:44:56,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:44:56,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:44:56,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:44:56,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:44:56,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:44:56,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:44:56,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:44:56,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:44:56,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:44:56,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:44:56,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:44:56,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:44:56,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:44:56,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:44:56,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:44:56,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:44:56,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:44:56,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:44:56,108 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:44:56,108 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:44:56,108 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:44:56,108 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:44:56,108 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:44:56,109 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:44:56,109 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:44:56,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:44:56,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:44:56,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:44:56,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:44:56,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:44:56,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:44:56,112 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:44:56,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:44:56,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:44:56,113 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:44:56,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:44:56,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:44:56,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:44:56,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:44:56,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:44:56,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:44:56,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:44:56,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:44:56,115 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:44:56,115 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:44:56,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:44:56,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:44:56,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:44:56,116 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_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2021-11-03 05:44:56,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:44:56,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:44:56,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:44:56,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:44:56,496 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:44:56,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-03 05:44:56,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/ae5a39e5e/c632b48783c9418f9ed3fb310f11f08f/FLAGa396bfd0b [2021-11-03 05:44:57,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:44:57,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-03 05:44:57,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/ae5a39e5e/c632b48783c9418f9ed3fb310f11f08f/FLAGa396bfd0b [2021-11-03 05:44:57,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/data/ae5a39e5e/c632b48783c9418f9ed3fb310f11f08f [2021-11-03 05:44:57,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:44:57,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:44:57,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:44:57,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:44:57,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:44:57,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:57" (1/1) ... [2021-11-03 05:44:57,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48469fb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:44:57, skipping insertion in model container [2021-11-03 05:44:57,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:44:57" (1/1) ... [2021-11-03 05:44:57,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:44:58,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:45:00,965 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-03 05:45:00,968 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-03 05:45:00,969 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-03 05:45:00,969 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-03 05:45:00,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:45:01,060 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:45:01,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:45:01,533 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-03 05:45:01,533 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-03 05:45:01,534 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-03 05:45:01,534 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-03 05:45:01,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:45:01,610 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:45:01,934 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2021-11-03 05:45:01,935 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2021-11-03 05:45:01,935 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2021-11-03 05:45:01,936 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_295ba9f2-b637-4798-a4b4-f191501f91c7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2021-11-03 05:45:01,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:45:02,325 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:45:02,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02 WrapperNode [2021-11-03 05:45:02,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:45:02,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:45:02,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:45:02,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:45:02,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:02,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:02,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:45:02,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:45:02,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:45:02,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:45:02,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:02,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:45:03,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:45:03,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:45:03,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:45:03,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (1/1) ... [2021-11-03 05:45:03,488 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:45:03,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:45:03,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:45:03,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 05:45:03,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:45:03,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:45:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:45:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:45:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:45:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:45:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:45:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:45:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:45:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:45:50,273 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:50,274 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:50,274 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-03 05:45:50,274 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0bv32; [2021-11-03 05:45:50,274 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0bv32; [2021-11-03 05:45:50,275 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:50,275 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:45:50,275 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:45:50,275 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:45:50,276 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:45:50,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:45:50,315 INFO L299 CfgBuilder]: Removed 2716 assume(true) statements. [2021-11-03 05:45:50,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:50 BoogieIcfgContainer [2021-11-03 05:45:50,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:45:50,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:45:50,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:45:50,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:45:50,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:44:57" (1/3) ... [2021-11-03 05:45:50,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d31d15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:50, skipping insertion in model container [2021-11-03 05:45:50,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:02" (2/3) ... [2021-11-03 05:45:50,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d31d15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:50, skipping insertion in model container [2021-11-03 05:45:50,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:50" (3/3) ... [2021-11-03 05:45:50,331 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2021-11-03 05:45:50,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:45:50,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2021-11-03 05:45:50,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:45:50,429 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:45:50,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2021-11-03 05:45:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 2565 states, 2521 states have (on average 1.3351844506148354) internal successors, (3366), 2564 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:45:50,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:50,496 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:50,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:45:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:50,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1773586537, now seen corresponding path program 1 times [2021-11-03 05:45:50,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:50,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006231974] [2021-11-03 05:45:50,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:50,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:50,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:50,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:50,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:45:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:52,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:45:52,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:52,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:53,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:53,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:53,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006231974] [2021-11-03 05:45:53,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006231974] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:53,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:53,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:45:53,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973949130] [2021-11-03 05:45:53,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:45:53,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:53,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:45:53,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:45:53,059 INFO L87 Difference]: Start difference. First operand has 2565 states, 2521 states have (on average 1.3351844506148354) internal successors, (3366), 2564 states have internal predecessors, (3366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:56,204 INFO L93 Difference]: Finished difference Result 8903 states and 11681 transitions. [2021-11-03 05:45:56,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:45:56,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 43 [2021-11-03 05:45:56,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:56,270 INFO L225 Difference]: With dead ends: 8903 [2021-11-03 05:45:56,271 INFO L226 Difference]: Without dead ends: 6099 [2021-11-03 05:45:56,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:45:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6099 states. [2021-11-03 05:45:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6099 to 5415. [2021-11-03 05:45:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5371 states have (on average 1.2736920498975983) internal successors, (6841), 5414 states have internal predecessors, (6841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 6841 transitions. [2021-11-03 05:45:56,610 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 6841 transitions. Word has length 43 [2021-11-03 05:45:56,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:56,611 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 6841 transitions. [2021-11-03 05:45:56,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 6841 transitions. [2021-11-03 05:45:56,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:45:56,625 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:45:56,625 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:56,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:45:56,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:45:56,851 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:45:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1588786041, now seen corresponding path program 1 times [2021-11-03 05:45:56,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:45:56,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939510766] [2021-11-03 05:45:56,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:56,855 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:45:56,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:45:56,856 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:45:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:45:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:58,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:45:58,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:59,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:45:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:59,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:45:59,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939510766] [2021-11-03 05:45:59,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939510766] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:59,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:59,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:45:59,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586121443] [2021-11-03 05:45:59,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:45:59,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:45:59,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:45:59,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:45:59,210 INFO L87 Difference]: Start difference. First operand 5415 states and 6841 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:02,353 INFO L93 Difference]: Finished difference Result 20828 states and 26469 transitions. [2021-11-03 05:46:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:02,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 45 [2021-11-03 05:46:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:02,458 INFO L225 Difference]: With dead ends: 20828 [2021-11-03 05:46:02,459 INFO L226 Difference]: Without dead ends: 15489 [2021-11-03 05:46:02,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:02,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15489 states. [2021-11-03 05:46:03,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15489 to 15457. [2021-11-03 05:46:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15457 states, 15413 states have (on average 1.2760007785635503) internal successors, (19667), 15456 states have internal predecessors, (19667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15457 states to 15457 states and 19667 transitions. [2021-11-03 05:46:03,411 INFO L78 Accepts]: Start accepts. Automaton has 15457 states and 19667 transitions. Word has length 45 [2021-11-03 05:46:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:03,412 INFO L470 AbstractCegarLoop]: Abstraction has 15457 states and 19667 transitions. [2021-11-03 05:46:03,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 15457 states and 19667 transitions. [2021-11-03 05:46:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:46:03,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:03,418 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:03,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:03,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:03,643 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:03,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:03,644 INFO L85 PathProgramCache]: Analyzing trace with hash 784747092, now seen corresponding path program 1 times [2021-11-03 05:46:03,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:03,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906780419] [2021-11-03 05:46:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:03,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:03,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:03,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:03,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:46:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:05,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:05,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:05,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:06,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:06,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906780419] [2021-11-03 05:46:06,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906780419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:06,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:06,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:46:06,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730777271] [2021-11-03 05:46:06,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:06,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:06,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:06,138 INFO L87 Difference]: Start difference. First operand 15457 states and 19667 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:09,893 INFO L93 Difference]: Finished difference Result 42727 states and 54373 transitions. [2021-11-03 05:46:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-03 05:46:09,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:10,024 INFO L225 Difference]: With dead ends: 42727 [2021-11-03 05:46:10,025 INFO L226 Difference]: Without dead ends: 27346 [2021-11-03 05:46:10,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27346 states. [2021-11-03 05:46:11,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27346 to 26464. [2021-11-03 05:46:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26464 states, 26420 states have (on average 1.2762679788039364) internal successors, (33719), 26463 states have internal predecessors, (33719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26464 states to 26464 states and 33719 transitions. [2021-11-03 05:46:11,319 INFO L78 Accepts]: Start accepts. Automaton has 26464 states and 33719 transitions. Word has length 49 [2021-11-03 05:46:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:11,319 INFO L470 AbstractCegarLoop]: Abstraction has 26464 states and 33719 transitions. [2021-11-03 05:46:11,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 26464 states and 33719 transitions. [2021-11-03 05:46:11,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-03 05:46:11,325 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:11,326 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:11,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:11,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:11,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:11,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:11,540 INFO L85 PathProgramCache]: Analyzing trace with hash 469410419, now seen corresponding path program 1 times [2021-11-03 05:46:11,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:11,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155548359] [2021-11-03 05:46:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:11,543 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:11,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:11,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:11,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:46:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:13,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:13,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:13,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:14,146 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:14,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155548359] [2021-11-03 05:46:14,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155548359] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:14,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:14,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:14,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028035893] [2021-11-03 05:46:14,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:14,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:14,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:14,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:14,148 INFO L87 Difference]: Start difference. First operand 26464 states and 33719 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:18,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:18,215 INFO L93 Difference]: Finished difference Result 61496 states and 78418 transitions. [2021-11-03 05:46:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:18,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 77 [2021-11-03 05:46:18,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:18,351 INFO L225 Difference]: With dead ends: 61496 [2021-11-03 05:46:18,351 INFO L226 Difference]: Without dead ends: 43774 [2021-11-03 05:46:18,391 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43774 states. [2021-11-03 05:46:20,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43774 to 43742. [2021-11-03 05:46:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43742 states, 43698 states have (on average 1.276648816879491) internal successors, (55787), 43741 states have internal predecessors, (55787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43742 states to 43742 states and 55787 transitions. [2021-11-03 05:46:20,643 INFO L78 Accepts]: Start accepts. Automaton has 43742 states and 55787 transitions. Word has length 77 [2021-11-03 05:46:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:20,644 INFO L470 AbstractCegarLoop]: Abstraction has 43742 states and 55787 transitions. [2021-11-03 05:46:20,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 43742 states and 55787 transitions. [2021-11-03 05:46:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 05:46:20,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:20,650 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:20,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:20,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:20,867 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:20,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1623681169, now seen corresponding path program 1 times [2021-11-03 05:46:20,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:20,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807989544] [2021-11-03 05:46:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:20,871 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:20,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:20,873 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:20,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:46:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:22,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:46:22,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:23,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:23,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:23,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807989544] [2021-11-03 05:46:23,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807989544] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:23,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:23,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:23,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115643363] [2021-11-03 05:46:23,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:46:23,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:46:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:23,989 INFO L87 Difference]: Start difference. First operand 43742 states and 55787 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:26,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:26,635 INFO L93 Difference]: Finished difference Result 43742 states and 55787 transitions. [2021-11-03 05:46:26,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:46:26,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-03 05:46:26,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:26,755 INFO L225 Difference]: With dead ends: 43742 [2021-11-03 05:46:26,756 INFO L226 Difference]: Without dead ends: 43736 [2021-11-03 05:46:26,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:46:26,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43736 states. [2021-11-03 05:46:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43736 to 43736. [2021-11-03 05:46:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43736 states, 43695 states have (on average 1.2765991532211924) internal successors, (55781), 43735 states have internal predecessors, (55781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:28,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43736 states to 43736 states and 55781 transitions. [2021-11-03 05:46:28,773 INFO L78 Accepts]: Start accepts. Automaton has 43736 states and 55781 transitions. Word has length 79 [2021-11-03 05:46:28,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:28,775 INFO L470 AbstractCegarLoop]: Abstraction has 43736 states and 55781 transitions. [2021-11-03 05:46:28,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 43736 states and 55781 transitions. [2021-11-03 05:46:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 05:46:28,780 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:28,781 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:28,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:29,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:29,003 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:29,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1200007807, now seen corresponding path program 1 times [2021-11-03 05:46:29,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:29,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679220549] [2021-11-03 05:46:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:29,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:29,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:29,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:29,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:46:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:31,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:31,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:31,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:31,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:31,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:31,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679220549] [2021-11-03 05:46:31,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679220549] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:31,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:31,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:31,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289356186] [2021-11-03 05:46:31,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:31,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:31,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:31,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:31,835 INFO L87 Difference]: Start difference. First operand 43736 states and 55781 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:36,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:36,665 INFO L93 Difference]: Finished difference Result 100998 states and 129603 transitions. [2021-11-03 05:46:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:36,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-03 05:46:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:36,808 INFO L225 Difference]: With dead ends: 100998 [2021-11-03 05:46:36,808 INFO L226 Difference]: Without dead ends: 57338 [2021-11-03 05:46:36,902 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57338 states. [2021-11-03 05:46:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57338 to 57138. [2021-11-03 05:46:39,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57138 states, 57097 states have (on average 1.2837977476925233) internal successors, (73301), 57137 states have internal predecessors, (73301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57138 states to 57138 states and 73301 transitions. [2021-11-03 05:46:39,543 INFO L78 Accepts]: Start accepts. Automaton has 57138 states and 73301 transitions. Word has length 79 [2021-11-03 05:46:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:39,544 INFO L470 AbstractCegarLoop]: Abstraction has 57138 states and 73301 transitions. [2021-11-03 05:46:39,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 57138 states and 73301 transitions. [2021-11-03 05:46:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-03 05:46:39,550 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:39,551 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:39,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:46:39,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:39,755 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:39,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1284326830, now seen corresponding path program 1 times [2021-11-03 05:46:39,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:39,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86984625] [2021-11-03 05:46:39,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:39,758 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:39,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:39,759 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:39,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:46:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:41,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:46:41,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:42,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:42,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:42,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:42,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86984625] [2021-11-03 05:46:42,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86984625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:42,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:42,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:42,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924320054] [2021-11-03 05:46:42,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:46:42,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:46:42,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:42,779 INFO L87 Difference]: Start difference. First operand 57138 states and 73301 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:45,576 INFO L93 Difference]: Finished difference Result 57138 states and 73301 transitions. [2021-11-03 05:46:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:46:45,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-03 05:46:45,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:45,695 INFO L225 Difference]: With dead ends: 57138 [2021-11-03 05:46:45,695 INFO L226 Difference]: Without dead ends: 57132 [2021-11-03 05:46:45,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:46:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57132 states. [2021-11-03 05:46:48,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57132 to 57132. [2021-11-03 05:46:48,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57132 states, 57094 states have (on average 1.283760114898238) internal successors, (73295), 57131 states have internal predecessors, (73295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57132 states to 57132 states and 73295 transitions. [2021-11-03 05:46:48,915 INFO L78 Accepts]: Start accepts. Automaton has 57132 states and 73295 transitions. Word has length 81 [2021-11-03 05:46:48,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:48,915 INFO L470 AbstractCegarLoop]: Abstraction has 57132 states and 73295 transitions. [2021-11-03 05:46:48,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:48,916 INFO L276 IsEmpty]: Start isEmpty. Operand 57132 states and 73295 transitions. [2021-11-03 05:46:48,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-03 05:46:48,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:48,919 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:48,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:49,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:49,122 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:49,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1582321227, now seen corresponding path program 1 times [2021-11-03 05:46:49,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:49,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879627087] [2021-11-03 05:46:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:49,126 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:49,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:49,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:49,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:46:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:51,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1406 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:46:51,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:51,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:46:52,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:52,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879627087] [2021-11-03 05:46:52,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1879627087] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:52,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:52,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:52,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682463197] [2021-11-03 05:46:52,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:46:52,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:46:52,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:52,308 INFO L87 Difference]: Start difference. First operand 57132 states and 73295 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:55,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:55,347 INFO L93 Difference]: Finished difference Result 57132 states and 73295 transitions. [2021-11-03 05:46:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:46:55,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 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 83 [2021-11-03 05:46:55,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:55,445 INFO L225 Difference]: With dead ends: 57132 [2021-11-03 05:46:55,446 INFO L226 Difference]: Without dead ends: 57126 [2021-11-03 05:46:55,456 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:46:55,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57126 states. [2021-11-03 05:46:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57126 to 57126. [2021-11-03 05:46:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57126 states, 57091 states have (on average 1.28372247814892) internal successors, (73289), 57125 states have internal predecessors, (73289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57126 states to 57126 states and 73289 transitions. [2021-11-03 05:46:58,291 INFO L78 Accepts]: Start accepts. Automaton has 57126 states and 73289 transitions. Word has length 83 [2021-11-03 05:46:58,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:58,291 INFO L470 AbstractCegarLoop]: Abstraction has 57126 states and 73289 transitions. [2021-11-03 05:46:58,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 57126 states and 73289 transitions. [2021-11-03 05:46:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-03 05:46:58,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:58,296 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:58,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 05:46:58,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:58,511 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 41 more)] === [2021-11-03 05:46:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash -192127592, now seen corresponding path program 1 times [2021-11-03 05:46:58,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:58,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273243398] [2021-11-03 05:46:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:58,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:58,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:58,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:58,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295ba9f2-b637-4798-a4b4-f191501f91c7/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:47:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:47:00,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:47:00,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:47:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:47:01,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:47:01,734 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 05:47:01,734 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:47:01,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273243398] [2021-11-03 05:47:01,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273243398] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:47:01,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:47:01,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:47:01,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995174815] [2021-11-03 05:47:01,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:47:01,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:47:01,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:47:01,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:47:01,737 INFO L87 Difference]: Start difference. First operand 57126 states and 73289 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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)