./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-usb-smsc75xx.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_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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-usb-smsc75xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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_235939f1-9d29-4a7e-8986-fe81803ed6b1/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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:22,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:22,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:22,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:22,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:22,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:22,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:22,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:22,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:22,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:22,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:22,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:22,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:22,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:22,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:22,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:22,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:22,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:22,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:22,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:22,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:22,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:22,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:22,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:22,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:22,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:22,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:22,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:22,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:22,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:22,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:22,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:22,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:22,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:22,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:22,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:22,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:22,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:22,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:22,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:22,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:22,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 03:46:22,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:22,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:22,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:22,896 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:22,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:22,897 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:22,897 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:46:22,905 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:22,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:22,906 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:46:22,907 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:46:22,907 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:22,908 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:46:22,908 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:46:22,908 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:46:22,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:22,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:46:22,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:22,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:22,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:22,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:22,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:22,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:22,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:22,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:22,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:22,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:22,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:22,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:22,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:22,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:22,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:46:22,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:46:22,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:22,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:22,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:22,916 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2021-11-03 03:46:23,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:23,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:23,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:23,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:23,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:23,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-03 03:46:23,446 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9d6e376c9/dcccef2b38c84b33b379d3827d3e0ca4/FLAG874336171 [2021-11-03 03:46:24,763 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:24,764 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-03 03:46:24,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9d6e376c9/dcccef2b38c84b33b379d3827d3e0ca4/FLAG874336171 [2021-11-03 03:46:24,956 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9d6e376c9/dcccef2b38c84b33b379d3827d3e0ca4 [2021-11-03 03:46:24,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:24,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:24,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:24,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:24,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:24,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:24" (1/1) ... [2021-11-03 03:46:24,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5bae70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:24, skipping insertion in model container [2021-11-03 03:46:24,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:24" (1/1) ... [2021-11-03 03:46:24,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:25,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:26,980 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 03:46:27,001 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 03:46:27,003 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 03:46:28,691 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-03 03:46:28,695 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-03 03:46:28,696 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-03 03:46:28,696 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-03 03:46:28,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:28,809 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 03:46:28,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f5bbebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:28, skipping insertion in model container [2021-11-03 03:46:28,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:28,810 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 03:46:28,813 INFO L168 Benchmark]: Toolchain (without parser) took 3850.06 ms. Allocated memory was 92.3 MB in the beginning and 184.5 MB in the end (delta: 92.3 MB). Free memory was 60.6 MB in the beginning and 108.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:28,814 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:46:28,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3846.26 ms. Allocated memory was 92.3 MB in the beginning and 184.5 MB in the end (delta: 92.3 MB). Free memory was 60.6 MB in the beginning and 108.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:46:28,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3846.26 ms. Allocated memory was 92.3 MB in the beginning and 184.5 MB in the end (delta: 92.3 MB). Free memory was 60.6 MB in the beginning and 108.1 MB in the end (delta: -47.5 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5586]: 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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-usb-smsc75xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/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_235939f1-9d29-4a7e-8986-fe81803ed6b1/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 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:46:31,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:46:31,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:46:31,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:46:31,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:46:31,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:46:31,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:46:31,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:46:31,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:46:31,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:46:31,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:46:31,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:46:31,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:46:31,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:46:31,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:46:31,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:46:31,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:46:31,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:46:31,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:46:31,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:46:31,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:46:31,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:46:31,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:46:31,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:46:31,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:46:31,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:46:31,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:46:31,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:46:31,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:46:31,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:46:31,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:46:31,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:46:31,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:46:31,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:46:31,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:46:31,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:46:31,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:46:31,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:46:31,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:46:31,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:46:31,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:46:31,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 03:46:31,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:46:31,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:46:31,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:46:31,766 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:46:31,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:46:31,767 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:46:31,767 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:46:31,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:46:31,768 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:46:31,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:46:31,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:46:31,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:46:31,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:46:31,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:46:31,772 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:46:31,772 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:46:31,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:46:31,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:46:31,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:46:31,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:46:31,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:46:31,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:46:31,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:46:31,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:31,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:46:31,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:46:31,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:46:31,776 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:46:31,776 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:46:31,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:46:31,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:46:31,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:46:31,777 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24362a0e750636c52038fc4d3468ffab15d6b74376c584ca05819f34fdf58260 [2021-11-03 03:46:32,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:46:32,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:46:32,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:46:32,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:46:32,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:46:32,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-03 03:46:32,419 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9b1cdb39f/d320457455154f1480566812216a3988/FLAG62782f3a0 [2021-11-03 03:46:33,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:46:33,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-03 03:46:33,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9b1cdb39f/d320457455154f1480566812216a3988/FLAG62782f3a0 [2021-11-03 03:46:33,915 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/data/9b1cdb39f/d320457455154f1480566812216a3988 [2021-11-03 03:46:33,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:46:33,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:46:33,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:33,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:46:33,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:46:33,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:33" (1/1) ... [2021-11-03 03:46:33,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cae89fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:33, skipping insertion in model container [2021-11-03 03:46:33,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:46:33" (1/1) ... [2021-11-03 03:46:33,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:46:34,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:37,771 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-03 03:46:37,775 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-03 03:46:37,777 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-03 03:46:37,785 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-03 03:46:37,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:37,917 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 03:46:38,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:46:38,501 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-03 03:46:38,502 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-03 03:46:38,503 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-03 03:46:38,503 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-03 03:46:38,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:38,534 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:46:39,013 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359515,359528] [2021-11-03 03:46:39,014 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359684,359697] [2021-11-03 03:46:39,014 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[359851,359864] [2021-11-03 03:46:39,015 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_235939f1-9d29-4a7e-8986-fe81803ed6b1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i[360019,360032] [2021-11-03 03:46:39,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:46:39,400 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:46:39,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39 WrapperNode [2021-11-03 03:46:39,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:46:39,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:39,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:46:39,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:46:39,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:39,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:41,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:46:41,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:46:41,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:46:41,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:46:41,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:41,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:41,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:41,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:43,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:43,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:43,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:44,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:46:44,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:46:44,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:46:44,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:46:44,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (1/1) ... [2021-11-03 03:46:44,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:46:44,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:46:44,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:46:44,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:46:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-03 03:46:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:46:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 03:46:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:46:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 03:46:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 03:46:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-03 03:46:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-03 03:46:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:46:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:46:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 03:46:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 03:46:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 03:46:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 03:46:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:46:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:46:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 03:46:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 03:46:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:46:44,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 03:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 03:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-03 03:52:26,201 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 03:52:26,202 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 03:52:26,203 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 03:52:26,204 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 03:52:26,206 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 03:52:26,208 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 03:52:26,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:52:26,274 INFO L299 CfgBuilder]: Removed 7083 assume(true) statements. [2021-11-03 03:52:26,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:26 BoogieIcfgContainer [2021-11-03 03:52:26,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:52:26,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:52:26,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:52:26,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:52:26,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:46:33" (1/3) ... [2021-11-03 03:52:26,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b170a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:26, skipping insertion in model container [2021-11-03 03:52:26,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:46:39" (2/3) ... [2021-11-03 03:52:26,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69b170a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:52:26, skipping insertion in model container [2021-11-03 03:52:26,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:52:26" (3/3) ... [2021-11-03 03:52:26,297 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc75xx.cil.i [2021-11-03 03:52:26,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:52:26,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2021-11-03 03:52:26,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:52:26,414 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 03:52:26,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2021-11-03 03:52:26,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 10391 states, 10335 states have (on average 1.4625060474117078) internal successors, (15115), 10390 states have internal predecessors, (15115), 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 03:52:26,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-03 03:52:26,609 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:26,610 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:26,611 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:52:26,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:26,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1069829801, now seen corresponding path program 1 times [2021-11-03 03:52:26,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:26,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777438607] [2021-11-03 03:52:26,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:26,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:26,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:26,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:52:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:52:49,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:52:49,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:52:50,036 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 03:52:50,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:52:50,334 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 03:52:50,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:52:50,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777438607] [2021-11-03 03:52:50,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777438607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:52:50,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:52:50,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:52:50,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649990234] [2021-11-03 03:52:50,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:52:50,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:52:50,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:52:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:52:50,401 INFO L87 Difference]: Start difference. First operand has 10391 states, 10335 states have (on average 1.4625060474117078) internal successors, (15115), 10390 states have internal predecessors, (15115), 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 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:55,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:52:55,334 INFO L93 Difference]: Finished difference Result 40592 states and 59219 transitions. [2021-11-03 03:52:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:52:55,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-03 03:52:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:52:55,618 INFO L225 Difference]: With dead ends: 40592 [2021-11-03 03:52:55,619 INFO L226 Difference]: Without dead ends: 30140 [2021-11-03 03:52:55,663 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 134 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 03:52:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30140 states. [2021-11-03 03:52:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30140 to 30060. [2021-11-03 03:52:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30060 states, 30004 states have (on average 1.4057125716571124) internal successors, (42177), 30059 states have internal predecessors, (42177), 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 03:52:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30060 states to 30060 states and 42177 transitions. [2021-11-03 03:52:57,398 INFO L78 Accepts]: Start accepts. Automaton has 30060 states and 42177 transitions. Word has length 69 [2021-11-03 03:52:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:52:57,401 INFO L470 AbstractCegarLoop]: Abstraction has 30060 states and 42177 transitions. [2021-11-03 03:52:57,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:57,403 INFO L276 IsEmpty]: Start isEmpty. Operand 30060 states and 42177 transitions. [2021-11-03 03:52:57,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 03:52:57,419 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:57,419 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:57,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:52:57,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:52:57,643 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:52:57,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:57,644 INFO L85 PathProgramCache]: Analyzing trace with hash -214538271, now seen corresponding path program 1 times [2021-11-03 03:52:57,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:57,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329730875] [2021-11-03 03:52:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:57,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:57,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:57,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:57,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:53:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:23,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 2400 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:53:23,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:24,153 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 03:53:24,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:24,522 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 03:53:24,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:24,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329730875] [2021-11-03 03:53:24,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329730875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:24,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:24,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 03:53:24,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175844516] [2021-11-03 03:53:24,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:53:24,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:24,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:53:24,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:53:24,534 INFO L87 Difference]: Start difference. First operand 30060 states and 42177 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 03:53:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:29,750 INFO L93 Difference]: Finished difference Result 68395 states and 96030 transitions. [2021-11-03 03:53:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:53:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 03:53:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:29,883 INFO L225 Difference]: With dead ends: 68395 [2021-11-03 03:53:29,884 INFO L226 Difference]: Without dead ends: 38475 [2021-11-03 03:53:30,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 03:53:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38475 states. [2021-11-03 03:53:31,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38475 to 38333. [2021-11-03 03:53:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38333 states, 38277 states have (on average 1.4073986989575986) internal successors, (53871), 38332 states have internal predecessors, (53871), 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 03:53:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38333 states to 38333 states and 53871 transitions. [2021-11-03 03:53:31,836 INFO L78 Accepts]: Start accepts. Automaton has 38333 states and 53871 transitions. Word has length 79 [2021-11-03 03:53:31,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:31,839 INFO L470 AbstractCegarLoop]: Abstraction has 38333 states and 53871 transitions. [2021-11-03 03:53:31,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 03:53:31,840 INFO L276 IsEmpty]: Start isEmpty. Operand 38333 states and 53871 transitions. [2021-11-03 03:53:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-03 03:53:31,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:31,846 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, 1, 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 03:53:31,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:53:32,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:53:32,072 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:53:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash 465355016, now seen corresponding path program 1 times [2021-11-03 03:53:32,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:53:32,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524953139] [2021-11-03 03:53:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:32,096 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:53:32,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:53:32,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:53:32,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:53:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:55,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 03:53:55,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:55,727 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 03:53:55,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:56,084 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 03:53:56,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:56,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524953139] [2021-11-03 03:53:56,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524953139] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:56,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:56,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:53:56,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196673365] [2021-11-03 03:53:56,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:53:56,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:56,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:53:56,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:53:56,088 INFO L87 Difference]: Start difference. First operand 38333 states and 53871 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 03:54:01,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:01,611 INFO L93 Difference]: Finished difference Result 105720 states and 148655 transitions. [2021-11-03 03:54:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:54:01,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 102 [2021-11-03 03:54:01,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:01,899 INFO L225 Difference]: With dead ends: 105720 [2021-11-03 03:54:01,900 INFO L226 Difference]: Without dead ends: 76869 [2021-11-03 03:54:01,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 200 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 03:54:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76869 states. [2021-11-03 03:54:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76869 to 76789. [2021-11-03 03:54:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76789 states, 76733 states have (on average 1.4082207133827689) internal successors, (108057), 76788 states have internal predecessors, (108057), 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 03:54:05,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76789 states to 76789 states and 108057 transitions. [2021-11-03 03:54:05,197 INFO L78 Accepts]: Start accepts. Automaton has 76789 states and 108057 transitions. Word has length 102 [2021-11-03 03:54:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:05,202 INFO L470 AbstractCegarLoop]: Abstraction has 76789 states and 108057 transitions. [2021-11-03 03:54:05,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 03:54:05,203 INFO L276 IsEmpty]: Start isEmpty. Operand 76789 states and 108057 transitions. [2021-11-03 03:54:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-03 03:54:05,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:05,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:05,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 03:54:05,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:05,439 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:54:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1225949564, now seen corresponding path program 1 times [2021-11-03 03:54:05,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:05,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939509580] [2021-11-03 03:54:05,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:05,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:05,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:05,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:54:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:28,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:54:28,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:29,331 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 03:54:29,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:30,523 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 03:54:30,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:30,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939509580] [2021-11-03 03:54:30,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939509580] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:30,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:30,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:54:30,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362453597] [2021-11-03 03:54:30,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:54:30,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:54:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:54:30,527 INFO L87 Difference]: Start difference. First operand 76789 states and 108057 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 03:54:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:33,362 INFO L93 Difference]: Finished difference Result 76789 states and 108057 transitions. [2021-11-03 03:54:33,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:54:33,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-03 03:54:33,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:33,664 INFO L225 Difference]: With dead ends: 76789 [2021-11-03 03:54:33,667 INFO L226 Difference]: Without dead ends: 76783 [2021-11-03 03:54:33,693 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:54:33,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76783 states. [2021-11-03 03:54:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76783 to 76783. [2021-11-03 03:54:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76783 states, 76730 states have (on average 1.408197575915548) internal successors, (108051), 76782 states have internal predecessors, (108051), 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 03:54:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76783 states to 76783 states and 108051 transitions. [2021-11-03 03:54:36,430 INFO L78 Accepts]: Start accepts. Automaton has 76783 states and 108051 transitions. Word has length 104 [2021-11-03 03:54:36,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:36,432 INFO L470 AbstractCegarLoop]: Abstraction has 76783 states and 108051 transitions. [2021-11-03 03:54:36,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 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 03:54:36,433 INFO L276 IsEmpty]: Start isEmpty. Operand 76783 states and 108051 transitions. [2021-11-03 03:54:36,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 03:54:36,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:36,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:36,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:36,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:36,667 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:54:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1316337177, now seen corresponding path program 1 times [2021-11-03 03:54:36,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:36,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483380895] [2021-11-03 03:54:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:36,675 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:36,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:36,676 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:36,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 03:54:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:59,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 2460 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:54:59,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:00,652 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 03:55:00,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:01,733 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 03:55:01,733 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:01,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483380895] [2021-11-03 03:55:01,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483380895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:01,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:01,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:55:01,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661270327] [2021-11-03 03:55:01,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:55:01,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:01,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:55:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:55:01,737 INFO L87 Difference]: Start difference. First operand 76783 states and 108051 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 03:55:04,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:04,127 INFO L93 Difference]: Finished difference Result 76783 states and 108051 transitions. [2021-11-03 03:55:04,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:55:04,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 106 [2021-11-03 03:55:04,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:04,284 INFO L225 Difference]: With dead ends: 76783 [2021-11-03 03:55:04,284 INFO L226 Difference]: Without dead ends: 76777 [2021-11-03 03:55:04,302 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:55:04,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76777 states. [2021-11-03 03:55:06,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76777 to 76777. [2021-11-03 03:55:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76777 states, 76727 states have (on average 1.4081744366389928) internal successors, (108045), 76776 states have internal predecessors, (108045), 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 03:55:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76777 states to 76777 states and 108045 transitions. [2021-11-03 03:55:07,043 INFO L78 Accepts]: Start accepts. Automaton has 76777 states and 108045 transitions. Word has length 106 [2021-11-03 03:55:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:07,043 INFO L470 AbstractCegarLoop]: Abstraction has 76777 states and 108045 transitions. [2021-11-03 03:55:07,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 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 03:55:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 76777 states and 108045 transitions. [2021-11-03 03:55:07,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-03 03:55:07,051 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:07,051 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, 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 03:55:07,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:07,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:07,267 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:55:07,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2015480266, now seen corresponding path program 1 times [2021-11-03 03:55:07,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:07,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351190261] [2021-11-03 03:55:07,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:07,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:07,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:07,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 03:55:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:30,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:55:30,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:31,906 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 03:55:31,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:32,946 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 03:55:32,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:32,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351190261] [2021-11-03 03:55:32,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351190261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:32,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:32,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:55:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698422628] [2021-11-03 03:55:32,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:55:32,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:55:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:55:32,949 INFO L87 Difference]: Start difference. First operand 76777 states and 108045 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 03:55:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:35,354 INFO L93 Difference]: Finished difference Result 76777 states and 108045 transitions. [2021-11-03 03:55:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:55:35,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 108 [2021-11-03 03:55:35,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:35,490 INFO L225 Difference]: With dead ends: 76777 [2021-11-03 03:55:35,490 INFO L226 Difference]: Without dead ends: 76771 [2021-11-03 03:55:35,508 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:55:35,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76771 states. [2021-11-03 03:55:37,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76771 to 76771. [2021-11-03 03:55:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76771 states, 76724 states have (on average 1.408151295552891) internal successors, (108039), 76770 states have internal predecessors, (108039), 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 03:55:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76771 states to 76771 states and 108039 transitions. [2021-11-03 03:55:38,177 INFO L78 Accepts]: Start accepts. Automaton has 76771 states and 108039 transitions. Word has length 108 [2021-11-03 03:55:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:38,177 INFO L470 AbstractCegarLoop]: Abstraction has 76771 states and 108039 transitions. [2021-11-03 03:55:38,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 03:55:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 76771 states and 108039 transitions. [2021-11-03 03:55:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 03:55:38,185 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:38,185 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, 1, 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 03:55:38,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 03:55:38,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:38,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:55:38,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:38,400 INFO L85 PathProgramCache]: Analyzing trace with hash -153559507, now seen corresponding path program 1 times [2021-11-03 03:55:38,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:38,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182588552] [2021-11-03 03:55:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:38,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:38,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:38,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 03:56:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:01,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:56:01,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:02,048 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 03:56:02,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:03,090 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 03:56:03,091 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:03,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182588552] [2021-11-03 03:56:03,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182588552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:03,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:03,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:56:03,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822712924] [2021-11-03 03:56:03,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:56:03,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:03,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:56:03,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:56:03,093 INFO L87 Difference]: Start difference. First operand 76771 states and 108039 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 03:56:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:05,591 INFO L93 Difference]: Finished difference Result 76771 states and 108039 transitions. [2021-11-03 03:56:05,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:56:05,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 110 [2021-11-03 03:56:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:05,704 INFO L225 Difference]: With dead ends: 76771 [2021-11-03 03:56:05,704 INFO L226 Difference]: Without dead ends: 76765 [2021-11-03 03:56:05,720 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:56:05,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76765 states. [2021-11-03 03:56:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76765 to 76765. [2021-11-03 03:56:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76765 states, 76721 states have (on average 1.40812815265703) internal successors, (108033), 76764 states have internal predecessors, (108033), 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 03:56:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76765 states to 76765 states and 108033 transitions. [2021-11-03 03:56:08,638 INFO L78 Accepts]: Start accepts. Automaton has 76765 states and 108033 transitions. Word has length 110 [2021-11-03 03:56:08,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:08,638 INFO L470 AbstractCegarLoop]: Abstraction has 76765 states and 108033 transitions. [2021-11-03 03:56:08,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 03:56:08,638 INFO L276 IsEmpty]: Start isEmpty. Operand 76765 states and 108033 transitions. [2021-11-03 03:56:08,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-03 03:56:08,645 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:08,645 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, 1, 1, 1, 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 03:56:08,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 03:56:08,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:08,859 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:56:08,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1541642480, now seen corresponding path program 1 times [2021-11-03 03:56:08,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:08,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431678091] [2021-11-03 03:56:08,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:08,867 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:08,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 03:56:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:56:31,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 2469 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:56:31,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:56:32,926 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 03:56:32,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:56:33,996 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 03:56:33,996 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:56:33,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431678091] [2021-11-03 03:56:33,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431678091] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:56:33,997 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:56:33,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:56:33,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939921907] [2021-11-03 03:56:33,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:56:33,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:56:33,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:56:33,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:56:33,999 INFO L87 Difference]: Start difference. First operand 76765 states and 108033 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 03:56:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:56:36,775 INFO L93 Difference]: Finished difference Result 76765 states and 108033 transitions. [2021-11-03 03:56:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:56:36,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 112 [2021-11-03 03:56:36,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:56:36,881 INFO L225 Difference]: With dead ends: 76765 [2021-11-03 03:56:36,881 INFO L226 Difference]: Without dead ends: 76759 [2021-11-03 03:56:36,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:56:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76759 states. [2021-11-03 03:56:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76759 to 76759. [2021-11-03 03:56:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76759 states, 76718 states have (on average 1.4081050079511979) internal successors, (108027), 76758 states have internal predecessors, (108027), 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 03:56:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76759 states to 76759 states and 108027 transitions. [2021-11-03 03:56:39,461 INFO L78 Accepts]: Start accepts. Automaton has 76759 states and 108027 transitions. Word has length 112 [2021-11-03 03:56:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:56:39,461 INFO L470 AbstractCegarLoop]: Abstraction has 76759 states and 108027 transitions. [2021-11-03 03:56:39,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 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 03:56:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 76759 states and 108027 transitions. [2021-11-03 03:56:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-03 03:56:39,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:56:39,468 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, 1, 1, 1, 1, 1, 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 03:56:39,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 03:56:39,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:56:39,683 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:56:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:56:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 245449843, now seen corresponding path program 1 times [2021-11-03 03:56:39,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:56:39,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293235962] [2021-11-03 03:56:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:56:39,692 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:56:39,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:56:39,693 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:56:39,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 03:57:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:03,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 2472 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:57:03,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:04,567 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 03:57:04,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:05,668 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 03:57:05,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:05,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293235962] [2021-11-03 03:57:05,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293235962] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:05,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:05,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:05,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058976882] [2021-11-03 03:57:05,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:05,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:05,671 INFO L87 Difference]: Start difference. First operand 76759 states and 108027 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 03:57:08,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:08,897 INFO L93 Difference]: Finished difference Result 76759 states and 108027 transitions. [2021-11-03 03:57:08,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:08,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 114 [2021-11-03 03:57:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:09,011 INFO L225 Difference]: With dead ends: 76759 [2021-11-03 03:57:09,011 INFO L226 Difference]: Without dead ends: 76753 [2021-11-03 03:57:09,025 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76753 states. [2021-11-03 03:57:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76753 to 76753. [2021-11-03 03:57:11,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76753 states, 76715 states have (on average 1.4080818614351822) internal successors, (108021), 76752 states have internal predecessors, (108021), 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 03:57:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76753 states to 76753 states and 108021 transitions. [2021-11-03 03:57:12,271 INFO L78 Accepts]: Start accepts. Automaton has 76753 states and 108021 transitions. Word has length 114 [2021-11-03 03:57:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:12,272 INFO L470 AbstractCegarLoop]: Abstraction has 76753 states and 108021 transitions. [2021-11-03 03:57:12,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 03:57:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 76753 states and 108021 transitions. [2021-11-03 03:57:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-03 03:57:12,280 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:12,281 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, 1, 1, 1, 1, 1, 1, 1, 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 03:57:12,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 03:57:12,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:12,503 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:57:12,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:12,504 INFO L85 PathProgramCache]: Analyzing trace with hash -345745834, now seen corresponding path program 1 times [2021-11-03 03:57:12,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:12,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556567722] [2021-11-03 03:57:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:12,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:12,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:12,518 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:12,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 03:57:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:57:36,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:57:36,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:57:37,583 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 03:57:37,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:57:38,667 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 03:57:38,668 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:57:38,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556567722] [2021-11-03 03:57:38,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556567722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:57:38,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:57:38,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:57:38,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715842202] [2021-11-03 03:57:38,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:57:38,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:57:38,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:57:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:57:38,670 INFO L87 Difference]: Start difference. First operand 76753 states and 108021 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 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 03:57:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:57:42,017 INFO L93 Difference]: Finished difference Result 76753 states and 108021 transitions. [2021-11-03 03:57:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:57:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 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 116 [2021-11-03 03:57:42,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:57:42,128 INFO L225 Difference]: With dead ends: 76753 [2021-11-03 03:57:42,128 INFO L226 Difference]: Without dead ends: 76747 [2021-11-03 03:57:42,142 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:57:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76747 states. [2021-11-03 03:57:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76747 to 76747. [2021-11-03 03:57:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76747 states, 76712 states have (on average 1.4080587131087705) internal successors, (108015), 76746 states have internal predecessors, (108015), 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 03:57:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76747 states to 76747 states and 108015 transitions. [2021-11-03 03:57:45,578 INFO L78 Accepts]: Start accepts. Automaton has 76747 states and 108015 transitions. Word has length 116 [2021-11-03 03:57:45,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:57:45,579 INFO L470 AbstractCegarLoop]: Abstraction has 76747 states and 108015 transitions. [2021-11-03 03:57:45,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 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 03:57:45,579 INFO L276 IsEmpty]: Start isEmpty. Operand 76747 states and 108015 transitions. [2021-11-03 03:57:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-03 03:57:45,585 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:57:45,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:45,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 03:57:45,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:57:45,788 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 53 more)] === [2021-11-03 03:57:45,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:57:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1549108039, now seen corresponding path program 1 times [2021-11-03 03:57:46,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:57:46,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32636086] [2021-11-03 03:57:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:57:46,014 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:57:46,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:57:46,043 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:57:46,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235939f1-9d29-4a7e-8986-fe81803ed6b1/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 03:58:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:58:07,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 2478 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 03:58:07,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:58:08,651 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 03:58:08,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:58:09,752 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 03:58:09,752 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:58:09,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32636086] [2021-11-03 03:58:09,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32636086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:58:09,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:58:09,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 03:58:09,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571172133] [2021-11-03 03:58:09,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 03:58:09,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:58:09,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 03:58:09,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:58:09,754 INFO L87 Difference]: Start difference. First operand 76747 states and 108015 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 03:58:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:58:12,686 INFO L93 Difference]: Finished difference Result 76747 states and 108015 transitions. [2021-11-03 03:58:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:58:12,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 118 [2021-11-03 03:58:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:58:12,907 INFO L225 Difference]: With dead ends: 76747 [2021-11-03 03:58:12,907 INFO L226 Difference]: Without dead ends: 76741 [2021-11-03 03:58:12,919 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:58:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76741 states.