./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW --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 fd75bcebc98f315434e420a9b6dbe2ed83133440f297ff21f4c610e663347332 --- 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-4e7fbc6 [2022-11-23 15:07:29,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:07:29,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:07:29,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:07:29,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:07:29,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:07:29,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:07:29,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:07:29,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:07:29,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:07:29,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:07:29,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:07:29,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:07:29,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:07:29,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:07:29,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:07:29,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:07:29,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:07:29,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:07:29,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:07:29,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:07:29,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:07:29,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:07:29,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:07:29,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:07:29,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:07:29,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:07:29,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:07:29,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:07:29,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:07:29,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:07:29,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:07:29,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:07:29,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:07:29,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:07:29,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:07:29,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:07:29,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:07:29,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:07:29,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:07:29,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:07:29,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:07:29,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:07:29,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:07:29,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:07:29,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:07:29,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:07:29,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:07:29,950 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:07:29,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:07:29,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:07:29,951 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:07:29,952 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:07:29,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:07:29,953 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:07:29,953 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:07:29,953 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:07:29,954 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:07:29,954 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:07:29,954 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:07:29,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:07:29,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:07:29,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:07:29,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:07:29,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:07:29,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:07:29,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:07:29,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:07:29,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:07:29,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:07:29,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:07:29,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:29,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:07:29,959 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:07:29,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:07:29,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:07:29,959 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:07:29,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:07:29,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:07:29,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:07:29,960 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd75bcebc98f315434e420a9b6dbe2ed83133440f297ff21f4c610e663347332 [2022-11-23 15:07:30,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:07:30,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:07:30,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:07:30,263 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:07:30,264 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:07:30,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2022-11-23 15:07:33,302 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:07:33,553 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:07:33,554 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2022-11-23 15:07:33,561 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/96a9624aa/4c5608886d16482188ae29ac4d921cae/FLAG09ed6f1b1 [2022-11-23 15:07:33,584 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/96a9624aa/4c5608886d16482188ae29ac4d921cae [2022-11-23 15:07:33,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:07:33,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:07:33,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:33,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:07:33,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:07:33,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4519ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33, skipping insertion in model container [2022-11-23 15:07:33,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:07:33,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:07:33,770 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1107,1120] [2022-11-23 15:07:33,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:33,815 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:07:33,826 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1107,1120] [2022-11-23 15:07:33,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:33,861 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:07:33,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33 WrapperNode [2022-11-23 15:07:33,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:33,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:33,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:07:33,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:07:33,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,913 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2022-11-23 15:07:33,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:33,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:07:33,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:07:33,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:07:33,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:07:33,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:07:33,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:07:33,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:07:33,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (1/1) ... [2022-11-23 15:07:33,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:33,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:34,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:07:34,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:07:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:07:34,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:07:34,185 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:07:34,187 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:07:34,508 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:07:34,534 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:07:34,539 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:07:34,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:34 BoogieIcfgContainer [2022-11-23 15:07:34,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:07:34,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:07:34,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:07:34,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:07:34,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:33" (1/3) ... [2022-11-23 15:07:34,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c87ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:34, skipping insertion in model container [2022-11-23 15:07:34,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:33" (2/3) ... [2022-11-23 15:07:34,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c87ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:34, skipping insertion in model container [2022-11-23 15:07:34,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:34" (3/3) ... [2022-11-23 15:07:34,556 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b04.c [2022-11-23 15:07:34,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:07:34,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:07:34,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:07:34,630 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;@200385b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:07:34,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:07:34,634 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) [2022-11-23 15:07:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:07:34,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:34,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:07:34,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:34,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:34,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 15:07:34,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:34,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387112773] [2022-11-23 15:07:34,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:34,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:07:34,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:07:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:07:34,990 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:07:34,992 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:07:34,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:07:34,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:07:35,001 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:07:35,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:07:35,023 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 15:07:35,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:07:35 BoogieIcfgContainer [2022-11-23 15:07:35,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:07:35,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:07:35,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:07:35,032 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:07:35,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:34" (3/4) ... [2022-11-23 15:07:35,036 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:07:35,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:07:35,038 INFO L158 Benchmark]: Toolchain (without parser) took 1450.07ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 68.7MB in the end (delta: 57.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,038 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:07:35,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.50ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 114.7MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.25ms. Allocated memory is still 159.4MB. Free memory was 114.7MB in the beginning and 112.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,040 INFO L158 Benchmark]: Boogie Preprocessor took 32.24ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 111.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:07:35,040 INFO L158 Benchmark]: RCFGBuilder took 595.69ms. Allocated memory is still 159.4MB. Free memory was 111.3MB in the beginning and 93.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,041 INFO L158 Benchmark]: TraceAbstraction took 485.63ms. Allocated memory is still 159.4MB. Free memory was 92.7MB in the beginning and 69.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,042 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 159.4MB. Free memory was 69.2MB in the beginning and 68.7MB in the end (delta: 533.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:07:35,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.50ms. Allocated memory is still 159.4MB. Free memory was 126.1MB in the beginning and 114.7MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.25ms. Allocated memory is still 159.4MB. Free memory was 114.7MB in the beginning and 112.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.24ms. Allocated memory is still 159.4MB. Free memory was 112.7MB in the beginning and 111.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.69ms. Allocated memory is still 159.4MB. Free memory was 111.3MB in the beginning and 93.2MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 485.63ms. Allocated memory is still 159.4MB. Free memory was 92.7MB in the beginning and 69.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 159.4MB. Free memory was 69.2MB in the beginning and 68.7MB in the end (delta: 533.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 85, overapproximation of bitwiseOr at line 96, overapproximation of bitwiseAnd at line 79. 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 - 8); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (8 - 1); [L31] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 32); [L32] const SORT_12 msb_SORT_12 = (SORT_12)1 << (32 - 1); [L34] const SORT_4 var_8 = 0; [L35] const SORT_12 var_14 = 1; [L36] const SORT_1 var_25 = 1; [L37] const SORT_1 var_42 = 0; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L41] SORT_4 input_5; [L42] SORT_1 input_6; [L43] SORT_1 input_7; [L44] SORT_4 input_29; [L45] SORT_4 input_31; [L46] SORT_4 input_33; [L47] SORT_4 input_35; [L48] SORT_4 input_37; [L49] SORT_4 input_39; [L51] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L52] SORT_4 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L53] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L55] SORT_4 init_10_arg_1 = var_8; [L56] state_9 = init_10_arg_1 [L57] SORT_4 init_18_arg_1 = var_8; [L58] state_17 = init_18_arg_1 [L59] SORT_1 init_44_arg_1 = var_42; [L60] state_43 = init_44_arg_1 VAL [init_10_arg_1=0, init_18_arg_1=0, init_44_arg_1=0, mask_SORT_1=1, mask_SORT_12=4294967295, mask_SORT_4=255, msb_SORT_1=1, msb_SORT_12=2147483648, msb_SORT_4=128, state_17=0, state_43=0, state_9=0, var_14=1, var_25=1, var_42=0, var_8=0] [L63] input_2 = __VERIFIER_nondet_uchar() [L64] input_3 = __VERIFIER_nondet_uchar() [L65] input_5 = __VERIFIER_nondet_uchar() [L66] input_6 = __VERIFIER_nondet_uchar() [L67] input_7 = __VERIFIER_nondet_uchar() [L68] input_29 = __VERIFIER_nondet_uchar() [L69] input_31 = __VERIFIER_nondet_uchar() [L70] input_33 = __VERIFIER_nondet_uchar() [L71] input_35 = __VERIFIER_nondet_uchar() [L72] input_37 = __VERIFIER_nondet_uchar() [L73] input_39 = __VERIFIER_nondet_uchar() [L76] SORT_4 var_11_arg_0 = state_9; [L77] SORT_1 var_11 = var_11_arg_0 >> 7; [L78] SORT_1 var_13_arg_0 = var_11; [L79] var_13_arg_0 = var_13_arg_0 & mask_SORT_1 [L80] SORT_12 var_13 = var_13_arg_0; [L81] SORT_12 var_15_arg_0 = var_13; [L82] SORT_12 var_15_arg_1 = var_14; [L83] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L84] SORT_1 var_16_arg_0 = var_15; [L85] SORT_1 var_16 = ~var_16_arg_0; [L86] SORT_4 var_19_arg_0 = state_17; [L87] SORT_1 var_19 = var_19_arg_0 >> 7; [L88] SORT_1 var_20_arg_0 = var_19; [L89] var_20_arg_0 = var_20_arg_0 & mask_SORT_1 [L90] SORT_12 var_20 = var_20_arg_0; [L91] SORT_12 var_21_arg_0 = var_20; [L92] SORT_12 var_21_arg_1 = var_14; [L93] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L94] SORT_1 var_22_arg_0 = var_16; [L95] SORT_1 var_22_arg_1 = var_21; [L96] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L97] SORT_1 var_26_arg_0 = var_22; [L98] SORT_1 var_26 = ~var_26_arg_0; [L99] SORT_1 var_27_arg_0 = var_25; [L100] SORT_1 var_27_arg_1 = var_26; [L101] SORT_1 var_27 = var_27_arg_0 & var_27_arg_1; [L102] var_27 = var_27 & mask_SORT_1 [L103] SORT_1 bad_28_arg_0 = var_27; [L104] CALL __VERIFIER_assert(!(bad_28_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 0.2s 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 [2022-11-23 15:07:35,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW --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 fd75bcebc98f315434e420a9b6dbe2ed83133440f297ff21f4c610e663347332 --- 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-4e7fbc6 [2022-11-23 15:07:37,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:07:37,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:07:37,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:07:37,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:07:37,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:07:37,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:07:37,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:07:37,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:07:37,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:07:37,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:07:37,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:07:37,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:07:37,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:07:37,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:07:37,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:07:37,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:07:37,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:07:37,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:07:37,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:07:37,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:07:37,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:07:37,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:07:37,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:07:37,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:07:37,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:07:37,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:07:37,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:07:37,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:07:37,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:07:37,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:07:37,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:07:37,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:07:37,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:07:37,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:07:37,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:07:37,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:07:37,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:07:37,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:07:37,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:07:37,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:07:37,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 15:07:37,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:07:37,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:07:37,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:07:37,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:07:37,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:07:37,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:07:37,777 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:07:37,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:07:37,777 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:07:37,777 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:07:37,779 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:07:37,779 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:07:37,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:07:37,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:07:37,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:07:37,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:07:37,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:07:37,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:07:37,781 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:07:37,781 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:07:37,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:07:37,782 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:07:37,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:07:37,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:07:37,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:07:37,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:07:37,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:37,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:07:37,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:07:37,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:07:37,784 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:07:37,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:07:37,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:07:37,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:07:37,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:07:37,785 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd75bcebc98f315434e420a9b6dbe2ed83133440f297ff21f4c610e663347332 [2022-11-23 15:07:38,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:07:38,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:07:38,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:07:38,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:07:38,231 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:07:38,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2022-11-23 15:07:41,356 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:07:41,607 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:07:41,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c [2022-11-23 15:07:41,615 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/909079faa/4976ea05a4b04d83aae0b338b9edc114/FLAGc5c321b9a [2022-11-23 15:07:41,640 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/data/909079faa/4976ea05a4b04d83aae0b338b9edc114 [2022-11-23 15:07:41,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:07:41,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:07:41,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:41,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:07:41,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:07:41,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b566d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41, skipping insertion in model container [2022-11-23 15:07:41,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:07:41,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:07:41,813 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1107,1120] [2022-11-23 15:07:41,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:41,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:07:41,877 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_1b374bd3-24b0-4c73-8e7e-31e66f757929/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b04.c[1107,1120] [2022-11-23 15:07:41,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:41,928 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:07:41,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41 WrapperNode [2022-11-23 15:07:41,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:41,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:41,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:07:41,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:07:41,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,983 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 116 [2022-11-23 15:07:41,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:41,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:07:41,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:07:41,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:07:41,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:41,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:07:42,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:07:42,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:07:42,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:07:42,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (1/1) ... [2022-11-23 15:07:42,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:42,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:42,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:07:42,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:07:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:07:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:07:42,251 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:07:42,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:07:42,477 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:07:42,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:07:42,483 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:07:42,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:42 BoogieIcfgContainer [2022-11-23 15:07:42,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:07:42,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:07:42,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:07:42,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:07:42,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:41" (1/3) ... [2022-11-23 15:07:42,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@973560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:42, skipping insertion in model container [2022-11-23 15:07:42,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:41" (2/3) ... [2022-11-23 15:07:42,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@973560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:42, skipping insertion in model container [2022-11-23 15:07:42,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:42" (3/3) ... [2022-11-23 15:07:42,510 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b04.c [2022-11-23 15:07:42,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:07:42,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:07:42,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:07:42,628 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;@3e1501be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:07:42,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:07:42,633 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) [2022-11-23 15:07:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:07:42,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:42,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:07:42,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:42,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:42,648 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 15:07:42,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:07:42,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098852245] [2022-11-23 15:07:42,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:42,661 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 [2022-11-23 15:07:42,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:07:42,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:07:42,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:42,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 15:07:42,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:43,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:07:43,105 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:07:43,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098852245] [2022-11-23 15:07:43,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098852245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:43,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:43,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:07:43,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515167785] [2022-11-23 15:07:43,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:43,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:07:43,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:07:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:07:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:07:43,170 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) [2022-11-23 15:07:43,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:43,224 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 15:07:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:07:43,227 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 [2022-11-23 15:07:43,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:43,235 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:07:43,235 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 15:07:43,238 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 [2022-11-23 15:07:43,242 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 [2022-11-23 15:07:43,243 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] [2022-11-23 15:07:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 15:07:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 15:07:43,276 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) [2022-11-23 15:07:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 15:07:43,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 15:07:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:43,279 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 15:07:43,279 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) [2022-11-23 15:07:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 15:07:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:07:43,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:43,280 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:43,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:43,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:43,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 15:07:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:07:43,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691418040] [2022-11-23 15:07:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:43,494 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 [2022-11-23 15:07:43,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:07:43,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:07:43,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:43,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 15:07:43,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:43,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:44,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:07:44,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691418040] [2022-11-23 15:07:44,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691418040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:44,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [590703906] [2022-11-23 15:07:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:07:44,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:07:44,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:07:44,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 15:07:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:44,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-23 15:07:44,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:44,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:44,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [590703906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:44,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249219155] [2022-11-23 15:07:44,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:44,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:44,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:44,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:44,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:07:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:44,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-23 15:07:44,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:45,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:45,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249219155] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:45,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:07:45,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-23 15:07:45,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159395567] [2022-11-23 15:07:45,387 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:07:45,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:07:45,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:07:45,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:07:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:07:45,390 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:45,508 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 15:07:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:07:45,509 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 15:07:45,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:45,510 INFO L225 Difference]: With dead ends: 16 [2022-11-23 15:07:45,510 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 15:07:45,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:07:45,516 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:45,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:07:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 15:07:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 15:07:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-23 15:07:45,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 15:07:45,529 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 15:07:45,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:45,530 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 15:07:45,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:45,531 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 15:07:45,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:07:45,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:45,532 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 15:07:45,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 15:07:45,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:45,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:46,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:46,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:46,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:46,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 15:07:46,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:07:46,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663192534] [2022-11-23 15:07:46,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:07:46,140 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 [2022-11-23 15:07:46,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:07:46,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:07:46,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:07:46,250 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:07:46,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:07:46,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 15:07:46,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:46,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:46,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:07:46,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663192534] [2022-11-23 15:07:46,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663192534] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:46,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [390518429] [2022-11-23 15:07:46,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:07:46,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:07:46,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:07:46,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:07:46,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-23 15:07:47,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:07:47,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:07:47,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-23 15:07:47,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:47,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:47,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:47,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [390518429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:47,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019767481] [2022-11-23 15:07:47,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:07:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:47,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:47,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 15:07:47,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:07:47,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:07:47,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-23 15:07:47,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:48,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:07:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:48,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019767481] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:07:48,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:07:48,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 12 [2022-11-23 15:07:48,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208961690] [2022-11-23 15:07:48,342 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:07:48,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 15:07:48,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:07:48,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 15:07:48,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:07:48,346 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-11-23 15:07:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:48,499 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-23 15:07:48,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:07:48,500 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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 11 [2022-11-23 15:07:48,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:48,501 INFO L225 Difference]: With dead ends: 13 [2022-11-23 15:07:48,501 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:07:48,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:07:48,502 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:48,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:07:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:07:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:07:48,504 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) [2022-11-23 15:07:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:07:48,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-23 15:07:48,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:48,508 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:07:48,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-11-23 15:07:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:07:48,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:07:48,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:07:48,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:48,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:48,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:49,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:49,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:07:49,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:07:49,220 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 15:07:49,221 INFO L895 garLoopResultBuilder]: At program point L127(lines 22 128) the Hoare annotation is: false [2022-11-23 15:07:49,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:07:49,221 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 15:07:49,221 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 126) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_14~0#1| (_ bv1 32))) (.cse2 (exists ((|ULTIMATE.start_main_~var_47_arg_1~0#1| (_ BitVec 8))) (let ((.cse3 ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_47_arg_1~0#1|)))) (and (= |ULTIMATE.start_main_~state_9~0#1| .cse3) (= .cse3 |ULTIMATE.start_main_~state_17~0#1|)))))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_main_~state_9~0#1| (_ bv0 8)) (= (_ bv1 8) |ULTIMATE.start_main_~var_25~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_43~0#1|) (= |ULTIMATE.start_main_~var_42~0#1| (_ bv0 8)) .cse1 .cse2))) [2022-11-23 15:07:49,221 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 126) no Hoare annotation was computed. [2022-11-23 15:07:49,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 15:07:49,222 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 15:07:49,222 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 15:07:49,222 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 15:07:49,225 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-23 15:07:49,227 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:07:49,236 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,237 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,237 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,237 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,242 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,242 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,242 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,243 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:07:49 BoogieIcfgContainer [2022-11-23 15:07:49,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:07:49,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:07:49,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:07:49,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:07:49,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:42" (3/4) ... [2022-11-23 15:07:49,248 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:07:49,258 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 15:07:49,259 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 15:07:49,259 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:07:49,283 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv8 == mask_SORT_1 && cond == 1bv32) && var_14 == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_1~0#1 : bv8 :: state_9 == ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] && ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] == state_17)) || ((((((1bv8 == mask_SORT_1 && state_9 == 0bv8) && 1bv8 == var_25) && 0bv8 == state_43) && var_42 == 0bv8) && var_14 == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_1~0#1 : bv8 :: state_9 == ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] && ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] == state_17)) [2022-11-23 15:07:49,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:07:49,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:07:49,298 INFO L158 Benchmark]: Toolchain (without parser) took 7653.98ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 36.9MB in the beginning and 56.7MB in the end (delta: -19.8MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,298 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:07:49,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.11ms. Allocated memory is still 62.9MB. Free memory was 36.7MB in the beginning and 24.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.97ms. Allocated memory is still 62.9MB. Free memory was 24.9MB in the beginning and 42.4MB in the end (delta: -17.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,299 INFO L158 Benchmark]: Boogie Preprocessor took 37.68ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,300 INFO L158 Benchmark]: RCFGBuilder took 462.38ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 28.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,300 INFO L158 Benchmark]: TraceAbstraction took 6756.78ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 28.0MB in the beginning and 60.9MB in the end (delta: -32.8MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,300 INFO L158 Benchmark]: Witness Printer took 53.16ms. Allocated memory is still 142.6MB. Free memory was 60.9MB in the beginning and 56.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:07:49,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.11ms. Allocated memory is still 62.9MB. Free memory was 36.7MB in the beginning and 24.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.97ms. Allocated memory is still 62.9MB. Free memory was 24.9MB in the beginning and 42.4MB in the end (delta: -17.5MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.68ms. Allocated memory is still 62.9MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.38ms. Allocated memory is still 62.9MB. Free memory was 41.1MB in the beginning and 28.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6756.78ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 28.0MB in the beginning and 60.9MB in the end (delta: -32.8MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Witness Printer took 53.16ms. Allocated memory is still 142.6MB. Free memory was 60.9MB in the beginning and 56.7MB 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[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,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: 6.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 11 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 77 SyntacticMatches, 9 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 5 NumberOfFragments, 55 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 33 QuantifiedInterpolants, 2113 SizeOfPredicates, 265 NumberOfNonLiveVariables, 926 ConjunctsInSsa, 268 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/54 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: 61]: Loop Invariant [2022-11-23 15:07:49,310 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,311 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,311 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,311 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,312 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,312 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,312 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] [2022-11-23 15:07:49,312 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_47_arg_1~0#1,QUANTIFIED] Derived loop invariant: (((1bv8 == mask_SORT_1 && cond == 1bv32) && var_14 == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_1~0#1 : bv8 :: state_9 == ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] && ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] == state_17)) || ((((((1bv8 == mask_SORT_1 && state_9 == 0bv8) && 1bv8 == var_25) && 0bv8 == state_43) && var_42 == 0bv8) && var_14 == 1bv32) && (\exists ULTIMATE.start_main_~var_47_arg_1~0#1 : bv8 :: state_9 == ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] && ~zero_extendFrom8To32(ULTIMATE.start_main_~var_47_arg_1~0#1)[7:0] == state_17)) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:07:49,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b374bd3-24b0-4c73-8e7e-31e66f757929/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Result: TRUE