./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh --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 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:41:16,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:41:16,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:41:16,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:41:16,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:41:16,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:41:16,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:41:16,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:41:16,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:41:16,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:41:16,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:41:16,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:41:16,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:41:16,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:41:16,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:41:16,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:41:16,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:41:16,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:41:16,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:41:16,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:41:16,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:41:16,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:41:16,837 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:41:16,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:41:16,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:41:16,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:41:16,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:41:16,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:41:16,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:41:16,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:41:16,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:41:16,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:41:16,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:41:16,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:41:16,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:41:16,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:41:16,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:41:16,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:41:16,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:41:16,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:41:16,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:41:16,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 11:41:16,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:41:16,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:41:16,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:41:16,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:41:16,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:41:16,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:41:16,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:41:16,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:41:16,876 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:41:16,877 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:41:16,877 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:41:16,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:41:16,877 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:41:16,877 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:41:16,878 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:41:16,878 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:41:16,878 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:41:16,878 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:41:16,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:41:16,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:41:16,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:41:16,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:41:16,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:41:16,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:41:16,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:41:16,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:41:16,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:41:16,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:41:16,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:41:16,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:41:16,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:41:16,881 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:41:16,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:41:16,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 [2022-12-14 11:41:17,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:41:17,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:41:17,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:41:17,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:41:17,094 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:41:17,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-14 11:41:19,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:41:19,736 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:41:19,736 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-14 11:41:19,741 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/276298786/13639bc8b5b0442f875dc1fee23985c1/FLAG1cb204711 [2022-12-14 11:41:19,751 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/276298786/13639bc8b5b0442f875dc1fee23985c1 [2022-12-14 11:41:19,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:41:19,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:41:19,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:41:19,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:41:19,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:41:19,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:19,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a273611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19, skipping insertion in model container [2022-12-14 11:41:19,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:19,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:41:19,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:41:19,896 WARN L237 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-14 11:41:19,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:41:19,947 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:41:19,955 WARN L237 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-14 11:41:19,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:41:19,992 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:41:19,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19 WrapperNode [2022-12-14 11:41:19,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:41:19,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:41:19,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:41:19,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:41:19,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,029 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-14 11:41:20,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:41:20,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:41:20,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:41:20,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:41:20,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:41:20,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:41:20,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:41:20,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:41:20,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (1/1) ... [2022-12-14 11:41:20,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:41:20,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:20,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:41:20,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:41:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:41:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:41:20,183 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:41:20,185 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:41:20,443 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:41:20,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:41:20,456 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:41:20,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:20 BoogieIcfgContainer [2022-12-14 11:41:20,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:41:20,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:41:20,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:41:20,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:41:20,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:41:19" (1/3) ... [2022-12-14 11:41:20,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68affa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:41:20, skipping insertion in model container [2022-12-14 11:41:20,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:19" (2/3) ... [2022-12-14 11:41:20,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68affa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:41:20, skipping insertion in model container [2022-12-14 11:41:20,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:20" (3/3) ... [2022-12-14 11:41:20,464 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2022-12-14 11:41:20,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:41:20,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:41:20,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:41:20,517 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@125dba40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:41:20,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:41:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-12-14 11:41:20,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:41:20,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:20,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:41:20,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 11:41:20,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:41:20,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972656219] [2022-12-14 11:41:20,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:41:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:41:20,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:41:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:41:20,667 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:41:20,669 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:41:20,669 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:41:20,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:41:20,674 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 11:41:20,677 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:41:20,685 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 11:41:20,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:41:20 BoogieIcfgContainer [2022-12-14 11:41:20,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:41:20,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:41:20,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:41:20,690 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:41:20,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:20" (3/4) ... [2022-12-14 11:41:20,693 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:41:20,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:41:20,694 INFO L158 Benchmark]: Toolchain (without parser) took 939.96ms. Allocated memory is still 148.9MB. Free memory was 108.8MB in the beginning and 81.3MB in the end (delta: 27.5MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-12-14 11:41:20,694 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:41:20,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.65ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 96.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:41:20,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.76ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 93.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 11:41:20,695 INFO L158 Benchmark]: Boogie Preprocessor took 27.32ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 92.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:41:20,696 INFO L158 Benchmark]: RCFGBuilder took 399.82ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 99.2MB in the end (delta: -7.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-14 11:41:20,696 INFO L158 Benchmark]: TraceAbstraction took 230.06ms. Allocated memory is still 148.9MB. Free memory was 99.2MB in the beginning and 81.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:41:20,696 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 148.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:41:20,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.65ms. Allocated memory is still 148.9MB. Free memory was 108.3MB in the beginning and 96.2MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.76ms. Allocated memory is still 148.9MB. Free memory was 96.2MB in the beginning and 93.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.32ms. Allocated memory is still 148.9MB. Free memory was 93.6MB in the beginning and 92.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.82ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 99.2MB in the end (delta: -7.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * TraceAbstraction took 230.06ms. Allocated memory is still 148.9MB. Free memory was 99.2MB in the beginning and 81.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 148.9MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 56, overapproximation of bitwiseAnd at line 61. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L31] const SORT_4 var_5 = 0; [L32] const SORT_1 var_14 = 1; [L33] const SORT_4 var_19 = 1; [L34] const SORT_4 var_22 = 15; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L39] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L40] SORT_4 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L42] SORT_4 init_7_arg_1 = var_5; [L43] state_6 = init_7_arg_1 [L44] SORT_4 init_9_arg_1 = var_5; [L45] state_8 = init_9_arg_1 VAL [init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_4=8, state_6=0, state_8=0, var_14=1, var_19=1, var_22=15, var_5=0] [L48] input_2 = __VERIFIER_nondet_uchar() [L49] input_3 = __VERIFIER_nondet_uchar() [L52] SORT_4 var_10_arg_0 = state_6; [L53] SORT_4 var_10_arg_1 = state_8; [L54] SORT_1 var_10 = var_10_arg_0 < var_10_arg_1; [L55] SORT_1 var_11_arg_0 = var_10; [L56] SORT_1 var_11 = ~var_11_arg_0; [L57] SORT_1 var_15_arg_0 = var_11; [L58] SORT_1 var_15 = ~var_15_arg_0; [L59] SORT_1 var_16_arg_0 = var_14; [L60] SORT_1 var_16_arg_1 = var_15; [L61] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L62] var_16 = var_16 & mask_SORT_1 [L63] SORT_1 bad_17_arg_0 = var_16; [L64] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 11:41:20,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh --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 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:41:22,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:41:22,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:41:22,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:41:22,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:41:22,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:41:22,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:41:22,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:41:22,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:41:22,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:41:22,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:41:22,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:41:22,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:41:22,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:41:22,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:41:22,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:41:22,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:41:22,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:41:22,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:41:22,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:41:22,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:41:22,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:41:22,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:41:22,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:41:22,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:41:22,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:41:22,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:41:22,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:41:22,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:41:22,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:41:22,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:41:22,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:41:22,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:41:22,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:41:22,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:41:22,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:41:22,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:41:22,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:41:22,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:41:22,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:41:22,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:41:22,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 11:41:22,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:41:22,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:41:22,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:41:22,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:41:22,346 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:41:22,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:41:22,346 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:41:22,347 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:41:22,347 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:41:22,347 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:41:22,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:41:22,347 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:41:22,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:41:22,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:41:22,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:41:22,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:41:22,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:41:22,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:41:22,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:41:22,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:41:22,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:41:22,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:41:22,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:41:22,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:41:22,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:41:22,352 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbe822661921a086d2e8463a9fe627e3d2feec0733ded33ee82f90f38d03493 [2022-12-14 11:41:22,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:41:22,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:41:22,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:41:22,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:41:22,573 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:41:22,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-14 11:41:25,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:41:25,398 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:41:25,398 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c [2022-12-14 11:41:25,405 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/10da60798/02d1c94097c34fd297143abd98c3c990/FLAGb12fbeceb [2022-12-14 11:41:25,420 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/data/10da60798/02d1c94097c34fd297143abd98c3c990 [2022-12-14 11:41:25,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:41:25,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:41:25,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:41:25,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:41:25,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:41:25,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f78fda0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25, skipping insertion in model container [2022-12-14 11:41:25,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:41:25,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:41:25,562 WARN L237 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-14 11:41:25,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:41:25,618 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:41:25,627 WARN L237 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_17ba1c43-d6d0-4574-80ac-0547634ae3a7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal.c[1107,1120] [2022-12-14 11:41:25,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:41:25,666 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:41:25,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25 WrapperNode [2022-12-14 11:41:25,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:41:25,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:41:25,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:41:25,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:41:25,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,701 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2022-12-14 11:41:25,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:41:25,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:41:25,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:41:25,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:41:25,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:41:25,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:41:25,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:41:25,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:41:25,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (1/1) ... [2022-12-14 11:41:25,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:41:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:25,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:41:25,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:41:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:41:25,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:41:25,868 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:41:25,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:41:26,070 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:41:26,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:41:26,077 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:41:26,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:26 BoogieIcfgContainer [2022-12-14 11:41:26,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:41:26,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:41:26,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:41:26,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:41:26,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:41:25" (1/3) ... [2022-12-14 11:41:26,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888f004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:41:26, skipping insertion in model container [2022-12-14 11:41:26,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:41:25" (2/3) ... [2022-12-14 11:41:26,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6888f004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:41:26, skipping insertion in model container [2022-12-14 11:41:26,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:26" (3/3) ... [2022-12-14 11:41:26,093 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal.c [2022-12-14 11:41:26,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:41:26,115 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:41:26,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:41:26,170 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4a1b55d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:41:26,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:41:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:41:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:41:26,181 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:26,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:41:26,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:26,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 11:41:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:41:26,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368006493] [2022-12-14 11:41:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:26,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:41:26,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:41:26,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:41:26,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 11:41:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:26,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 11:41:26,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:26,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:41:26,426 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:41:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368006493] [2022-12-14 11:41:26,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368006493] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:41:26,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:41:26,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:41:26,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790431531] [2022-12-14 11:41:26,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:41:26,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:41:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:41:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:41:26,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:41:26,454 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-12-14 11:41:26,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:41:26,496 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 11:41:26,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:41:26,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-12-14 11:41:26,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:41:26,506 INFO L225 Difference]: With dead ends: 20 [2022-12-14 11:41:26,506 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 11:41:26,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:41:26,510 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:41:26,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:41:26,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 11:41:26,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 11:41:26,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-12-14 11:41:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 11:41:26,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 11:41:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:41:26,537 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 11:41:26,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-12-14 11:41:26,537 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 11:41:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:41:26,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:26,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 11:41:26,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:41:26,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:41:26,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 11:41:26,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:41:26,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530996180] [2022-12-14 11:41:26,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:26,740 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:41:26,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:41:26,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:41:26,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 11:41:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:26,823 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 67 conjunts are in the unsatisfiable core [2022-12-14 11:41:26,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:27,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:41:32,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:32,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:41:32,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530996180] [2022-12-14 11:41:32,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530996180] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:41:32,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737919432] [2022-12-14 11:41:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:32,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:41:32,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:41:32,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:41:32,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 11:41:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:32,866 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-14 11:41:32,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:33,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:41:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:39,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1737919432] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:41:39,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265619580] [2022-12-14 11:41:39,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:41:39,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:39,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:41:39,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:41:39,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:41:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:41:39,358 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 70 conjunts are in the unsatisfiable core [2022-12-14 11:41:39,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:39,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:41:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:42,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265619580] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:41:42,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 11:41:42,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 12 [2022-12-14 11:41:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116619315] [2022-12-14 11:41:42,615 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 11:41:42,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 11:41:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:41:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 11:41:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-14 11:41:42,616 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-12-14 11:41:42,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:41:42,739 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-14 11:41:42,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:41:42,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 8 [2022-12-14 11:41:42,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:41:42,740 INFO L225 Difference]: With dead ends: 19 [2022-12-14 11:41:42,740 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 11:41:42,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-12-14 11:41:42,741 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:41:42,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 23 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:41:42,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 11:41:42,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 11:41:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-12-14 11:41:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 11:41:42,745 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-14 11:41:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:41:42,745 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 11:41:42,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2022-12-14 11:41:42,745 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 11:41:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 11:41:42,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:41:42,746 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 11:41:42,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 11:41:42,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 11:41:43,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:41:43,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:41:43,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:41:43,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:41:43,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-12-14 11:41:43,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:41:43,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449455320] [2022-12-14 11:41:43,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:41:43,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:41:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:41:43,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:41:43,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 11:41:43,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:41:43,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:41:43,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 167 conjunts are in the unsatisfiable core [2022-12-14 11:41:43,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:41:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:41:44,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:42:13,772 WARN L233 SmtUtils]: Spent 26.89s on a formula simplification. DAG size of input: 364 DAG size of output: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:47:48,451 WARN L233 SmtUtils]: Spent 5.33m on a formula simplification. DAG size of input: 549 DAG size of output: 67 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:47:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:47:48,509 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:47:48,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449455320] [2022-12-14 11:47:48,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449455320] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:47:48,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [855191145] [2022-12-14 11:47:48,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:47:48,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 11:47:48,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 11:47:48,511 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 11:47:48,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 11:47:48,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:47:48,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:47:48,678 WARN L261 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 166 conjunts are in the unsatisfiable core [2022-12-14 11:47:48,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:47:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:47:49,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:48:13,183 WARN L233 SmtUtils]: Spent 14.37s on a formula simplification. DAG size of input: 422 DAG size of output: 129 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:52:14,463 WARN L233 SmtUtils]: Spent 3.48m on a formula simplification. DAG size of input: 682 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:52:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:52:14,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [855191145] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:52:14,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815121533] [2022-12-14 11:52:14,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 11:52:14,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:52:14,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:52:14,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:52:14,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 11:52:14,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 11:52:14,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 11:52:14,667 WARN L261 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 167 conjunts are in the unsatisfiable core [2022-12-14 11:52:14,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:52:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:52:15,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:52:57,263 WARN L233 SmtUtils]: Spent 35.00s on a formula simplification. DAG size of input: 394 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:55:20,972 WARN L233 SmtUtils]: Spent 1.93m on a formula simplification. DAG size of input: 561 DAG size of output: 79 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:55:21,053 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:55:21,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815121533] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:55:21,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 11:55:21,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 20 [2022-12-14 11:55:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826128247] [2022-12-14 11:55:21,054 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 11:55:21,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 11:55:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:55:21,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 11:55:21,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=279, Unknown=6, NotChecked=0, Total=380 [2022-12-14 11:55:21,055 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 20 states, 20 states have (on average 2.65) internal successors, (53), 20 states have internal predecessors, (53), 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) [2022-12-14 11:55:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:55:23,087 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-12-14 11:55:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 11:55:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 20 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 11:55:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:55:23,089 INFO L225 Difference]: With dead ends: 22 [2022-12-14 11:55:23,089 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 11:55:23,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 749.8s TimeCoverageRelationStatistics Valid=171, Invalid=473, Unknown=6, NotChecked=0, Total=650 [2022-12-14 11:55:23,090 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:55:23,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:55:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 11:55:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 11:55:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-12-14 11:55:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 11:55:23,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 11:55:23,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:55:23,091 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 11:55:23,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.65) internal successors, (53), 20 states have internal predecessors, (53), 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) [2022-12-14 11:55:23,092 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 11:55:23,092 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 11:55:23,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 11:55:23,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 11:55:23,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 11:55:23,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-14 11:55:23,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 11:55:23,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 11:55:24,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 11:55:24,147 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 151) the Hoare annotation is: (or (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv15 8) |ULTIMATE.start_main_~var_22~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8)) (= (_ bv15 8) |ULTIMATE.start_main_~mask_SORT_4~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|)) (let ((.cse0 ((_ zero_extend 24) |ULTIMATE.start_main_~state_6~0#1|)) (.cse1 ((_ zero_extend 24) |ULTIMATE.start_main_~state_8~0#1|)) (.cse2 (forall ((|v_ULTIMATE.start_main_~var_16_arg_0~0#1_12| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_16_arg_0~0#1_12|) (_ bv1 32)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (_ bv0 8))))) (and (or (not (bvslt .cse0 .cse1)) .cse2) (or (not (bvsgt .cse0 .cse1)) (forall ((|v_ULTIMATE.start_main_~var_45_arg_1~0#1_9| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_34_arg_1~0#1_9| (_ BitVec 8))) (not (let ((.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_4~0#1|))) (bvslt ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_34_arg_1~0#1_9|)))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_45_arg_1~0#1_9|)))))))))) .cse2) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))))) [2022-12-14 11:55:24,147 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 151) no Hoare annotation was computed. [2022-12-14 11:55:24,147 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 153) the Hoare annotation is: false [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 11:55:24,148 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 11:55:24,151 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-14 11:55:24,153 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:55:24,160 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,160 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,160 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,160 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:55:24 BoogieIcfgContainer [2022-12-14 11:55:24,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:55:24,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:55:24,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:55:24,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:55:24,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:41:26" (3/4) ... [2022-12-14 11:55:24,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 11:55:24,177 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 11:55:24,177 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 11:55:24,178 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 11:55:24,210 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:55:24,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:55:24,211 INFO L158 Benchmark]: Toolchain (without parser) took 838786.81ms. Allocated memory was 81.8MB in the beginning and 148.9MB in the end (delta: 67.1MB). Free memory was 59.7MB in the beginning and 94.6MB in the end (delta: -34.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 11:55:24,211 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:55:24,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.15ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 47.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 11:55:24,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.96ms. Allocated memory is still 81.8MB. Free memory was 47.1MB in the beginning and 45.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:55:24,212 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 81.8MB. Free memory was 44.7MB in the beginning and 43.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:55:24,212 INFO L158 Benchmark]: RCFGBuilder took 350.43ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 26.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 11:55:24,212 INFO L158 Benchmark]: TraceAbstraction took 838085.25ms. Allocated memory was 81.8MB in the beginning and 148.9MB in the end (delta: 67.1MB). Free memory was 26.5MB in the beginning and 98.8MB in the end (delta: -72.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:55:24,212 INFO L158 Benchmark]: Witness Printer took 43.15ms. Allocated memory is still 148.9MB. Free memory was 98.8MB in the beginning and 94.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 11:55:24,214 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 62.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.15ms. Allocated memory is still 81.8MB. Free memory was 59.7MB in the beginning and 47.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.96ms. Allocated memory is still 81.8MB. Free memory was 47.1MB in the beginning and 45.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 81.8MB. Free memory was 44.7MB in the beginning and 43.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 350.43ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 26.9MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 838085.25ms. Allocated memory was 81.8MB in the beginning and 148.9MB in the end (delta: 67.1MB). Free memory was 26.5MB in the beginning and 98.8MB in the end (delta: -72.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.15ms. Allocated memory is still 148.9MB. Free memory was 98.8MB in the beginning and 94.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 838.0s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 755.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 86 HoareAnnotationTreeSize, 2 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 340 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 833.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 42 QuantifiedInterpolants, 6184 SizeOfPredicates, 823 NumberOfNonLiveVariables, 1352 ConjunctsInSsa, 723 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2022-12-14 11:55:24,218 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,218 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,218 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,218 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,219 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] [2022-12-14 11:55:24,219 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_34_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,219 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_45_arg_1~0#1_9,QUANTIFIED] [2022-12-14 11:55:24,219 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_16_arg_0~0#1_12,QUANTIFIED] Derived loop invariant: (((((1bv8 == mask_SORT_1 && 15bv8 == var_22) && state_8 == 0bv8) && state_6 == 0bv8) && 15bv8 == mask_SORT_4) && 1bv8 == var_19) || (((!~bvslt32(~zero_extendFrom8To32(state_6), ~zero_extendFrom8To32(state_8)) || (forall v_ULTIMATE.start_main_~var_16_arg_0~0#1_12 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_16_arg_0~0#1_12), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) && ((!~bvsgt32(~zero_extendFrom8To32(state_6), ~zero_extendFrom8To32(state_8)) || (forall v_ULTIMATE.start_main_~var_45_arg_1~0#1_9 : bv8, v_ULTIMATE.start_main_~var_34_arg_1~0#1_9 : bv8 :: !~bvslt32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_34_arg_1~0#1_9)[7:0]))[7:0]), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_4), ~zero_extendFrom8To32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_45_arg_1~0#1_9)[7:0]))[7:0])))) || (forall v_ULTIMATE.start_main_~var_16_arg_0~0#1_12 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_16_arg_0~0#1_12), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8))) && cond == 1bv32) RESULT: Ultimate proved your program to be correct! [2022-12-14 11:55:24,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17ba1c43-d6d0-4574-80ac-0547634ae3a7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE