./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:56:51,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:56:51,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:56:51,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:56:51,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:56:51,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:56:51,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:56:51,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:56:51,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:56:51,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:56:51,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:56:51,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:56:51,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:56:51,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:56:51,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:56:51,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:56:51,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:56:51,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:56:51,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:56:51,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:56:51,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:56:51,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:56:51,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:56:51,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:56:51,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:56:51,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:56:51,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:56:51,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:56:51,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:56:51,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:56:51,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:56:51,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:56:51,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:56:51,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:56:51,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:56:51,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:56:51,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:56:51,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:56:51,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:56:51,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:56:51,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:56:51,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 13:56:51,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:56:51,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:56:51,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:56:51,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:56:51,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:56:51,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:56:51,090 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:56:51,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:56:51,090 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:56:51,090 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:56:51,090 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:56:51,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:56:51,091 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:56:51,091 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:56:51,091 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:56:51,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:56:51,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:56:51,092 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:56:51,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:56:51,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:56:51,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:56:51,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:56:51,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:56:51,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:56:51,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:51,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:56:51,095 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:56:51,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:56:51,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:56:51,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:56:51,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:56:51,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:56:51,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:56:51,096 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 [2022-12-14 13:56:51,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:56:51,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:56:51,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:56:51,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:56:51,291 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:56:51,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:56:53,832 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:56:53,999 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:56:53,999 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:56:54,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/1032c4efa/ec3463b93b6b4b5e90d8b825990bd81d/FLAG04e5d8dd0 [2022-12-14 13:56:54,392 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/1032c4efa/ec3463b93b6b4b5e90d8b825990bd81d [2022-12-14 13:56:54,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:56:54,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:56:54,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:54,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:56:54,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:56:54,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cdc1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54, skipping insertion in model container [2022-12-14 13:56:54,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:56:54,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:56:54,534 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-12-14 13:56:54,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:54,620 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:56:54,628 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-12-14 13:56:54,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:54,691 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:56:54,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54 WrapperNode [2022-12-14 13:56:54,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:54,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:54,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:56:54,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:56:54,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,742 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 420 [2022-12-14 13:56:54,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:54,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:56:54,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:56:54,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:56:54,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,774 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:56:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:56:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:56:54,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:56:54,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (1/1) ... [2022-12-14 13:56:54,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:54,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:56:54,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:56:54,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:56:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:56:54,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:56:54,945 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:56:54,946 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:56:55,466 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:56:55,482 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:56:55,483 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:56:55,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:55 BoogieIcfgContainer [2022-12-14 13:56:55,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:56:55,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:56:55,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:56:55,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:56:55,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:56:54" (1/3) ... [2022-12-14 13:56:55,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706ece57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:55, skipping insertion in model container [2022-12-14 13:56:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:54" (2/3) ... [2022-12-14 13:56:55,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@706ece57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:55, skipping insertion in model container [2022-12-14 13:56:55,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:55" (3/3) ... [2022-12-14 13:56:55,494 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:56:55,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:56:55,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:56:55,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:56:55,562 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;@293f2592, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:56:55,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:56:55,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:56:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:56:55,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:55,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:56:55,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:56:55,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:55,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 13:56:55,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:56:55,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458951794] [2022-12-14 13:56:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:55,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:56:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:56,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:56:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:56,302 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:56:56,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:56:56,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 13:56:56,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:56:56,309 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 13:56:56,312 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:56:56,327 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 13:56:56,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:56:56 BoogieIcfgContainer [2022-12-14 13:56:56,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:56:56,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:56:56,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:56:56,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:56:56,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:55" (3/4) ... [2022-12-14 13:56:56,340 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:56:56,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:56:56,341 INFO L158 Benchmark]: Toolchain (without parser) took 1944.13ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 97.0MB in the beginning and 111.6MB in the end (delta: -14.6MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,341 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:56:56,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.05ms. Allocated memory is still 146.8MB. Free memory was 96.6MB in the beginning and 77.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 77.6MB in the beginning and 173.9MB in the end (delta: -96.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,343 INFO L158 Benchmark]: Boogie Preprocessor took 37.53ms. Allocated memory is still 205.5MB. Free memory was 173.8MB in the beginning and 172.2MB in the end (delta: 1.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,343 INFO L158 Benchmark]: RCFGBuilder took 704.91ms. Allocated memory is still 205.5MB. Free memory was 172.2MB in the beginning and 149.5MB in the end (delta: 22.7MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,344 INFO L158 Benchmark]: TraceAbstraction took 848.03ms. Allocated memory is still 205.5MB. Free memory was 148.4MB in the beginning and 112.7MB in the end (delta: 35.7MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,344 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 205.5MB. Free memory was 112.7MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:56,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 146.8MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.05ms. Allocated memory is still 146.8MB. Free memory was 96.6MB in the beginning and 77.6MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory was 146.8MB in the beginning and 205.5MB in the end (delta: 58.7MB). Free memory was 77.6MB in the beginning and 173.9MB in the end (delta: -96.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.53ms. Allocated memory is still 205.5MB. Free memory was 173.8MB in the beginning and 172.2MB in the end (delta: 1.7MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 704.91ms. Allocated memory is still 205.5MB. Free memory was 172.2MB in the beginning and 149.5MB in the end (delta: 22.7MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. * TraceAbstraction took 848.03ms. Allocated memory is still 205.5MB. Free memory was 148.4MB in the beginning and 112.7MB in the end (delta: 35.7MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 205.5MB. Free memory was 112.7MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 206, overapproximation of bitwiseOr at line 132, overapproximation of bitwiseAnd at line 84. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L34] const SORT_1 var_6 = 0; [L35] const SORT_9 var_11 = 1; [L36] const SORT_1 var_28 = 1; [L37] const SORT_3 var_59 = 0; [L38] const SORT_3 var_62 = 27; [L39] const SORT_3 var_71 = 85; [L40] const SORT_3 var_74 = 67; [L41] const SORT_3 var_77 = 78; [L43] SORT_1 input_2; [L44] SORT_3 input_4; [L45] SORT_1 input_5; [L46] SORT_3 input_65; [L47] SORT_1 input_70; [L48] SORT_1 input_82; [L49] SORT_1 input_85; [L50] SORT_1 input_89; [L51] SORT_1 input_98; [L52] SORT_1 input_101; [L53] SORT_1 input_105; [L54] SORT_1 input_114; [L55] SORT_1 input_117; [L56] SORT_1 input_121; [L57] SORT_1 input_130; [L58] SORT_1 input_133; [L60] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L62] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L64] SORT_3 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L65] SORT_3 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L67] SORT_1 init_8_arg_1 = var_6; [L68] state_7 = init_8_arg_1 [L69] SORT_1 init_14_arg_1 = var_6; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_21_arg_1 = var_6; [L72] state_20 = init_21_arg_1 [L73] SORT_1 init_30_arg_1 = var_28; [L74] state_29 = init_30_arg_1 [L75] SORT_3 init_61_arg_1 = var_59; [L76] state_60 = init_61_arg_1 [L77] SORT_3 init_69_arg_1 = var_59; [L78] state_68 = init_69_arg_1 VAL [init_14_arg_1=0, init_21_arg_1=0, init_30_arg_1=1, init_61_arg_1=0, init_69_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_9=2147483648, state_13=0, state_20=0, state_29=1, state_60=0, state_68=0, state_7=0, var_11=1, var_28=1, var_59=0, var_6=0, var_62=27, var_71=85, var_74=67, var_77=78] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_4 = __VERIFIER_nondet_uchar() [L83] input_5 = __VERIFIER_nondet_uchar() [L84] input_5 = input_5 & mask_SORT_1 [L85] input_65 = __VERIFIER_nondet_uchar() [L86] input_70 = __VERIFIER_nondet_uchar() [L87] input_82 = __VERIFIER_nondet_uchar() [L88] input_85 = __VERIFIER_nondet_uchar() [L89] input_89 = __VERIFIER_nondet_uchar() [L90] input_98 = __VERIFIER_nondet_uchar() [L91] input_101 = __VERIFIER_nondet_uchar() [L92] input_105 = __VERIFIER_nondet_uchar() [L93] input_114 = __VERIFIER_nondet_uchar() [L94] input_117 = __VERIFIER_nondet_uchar() [L95] input_121 = __VERIFIER_nondet_uchar() [L96] input_130 = __VERIFIER_nondet_uchar() [L97] input_133 = __VERIFIER_nondet_uchar() [L100] SORT_1 var_10_arg_0 = state_7; [L101] var_10_arg_0 = var_10_arg_0 & mask_SORT_1 [L102] SORT_9 var_10 = var_10_arg_0; [L103] SORT_9 var_12_arg_0 = var_10; [L104] SORT_9 var_12_arg_1 = var_11; [L105] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L106] SORT_1 var_15_arg_0 = state_13; [L107] var_15_arg_0 = var_15_arg_0 & mask_SORT_1 [L108] SORT_9 var_15 = var_15_arg_0; [L109] SORT_9 var_16_arg_0 = var_15; [L110] SORT_9 var_16_arg_1 = var_11; [L111] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L112] SORT_1 var_17_arg_0 = var_12; [L113] SORT_1 var_17_arg_1 = var_16; [L114] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L115] SORT_1 var_18_arg_0 = state_7; [L116] var_18_arg_0 = var_18_arg_0 & mask_SORT_1 [L117] SORT_9 var_18 = var_18_arg_0; [L118] SORT_9 var_19_arg_0 = var_18; [L119] SORT_9 var_19_arg_1 = var_11; [L120] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L121] SORT_1 var_22_arg_0 = state_20; [L122] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L123] SORT_9 var_22 = var_22_arg_0; [L124] SORT_9 var_23_arg_0 = var_22; [L125] SORT_9 var_23_arg_1 = var_11; [L126] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L127] SORT_1 var_24_arg_0 = var_19; [L128] SORT_1 var_24_arg_1 = var_23; [L129] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L130] SORT_1 var_25_arg_0 = var_17; [L131] SORT_1 var_25_arg_1 = var_24; [L132] SORT_1 var_25 = var_25_arg_0 | var_25_arg_1; [L133] SORT_1 var_26_arg_0 = state_7; [L134] var_26_arg_0 = var_26_arg_0 & mask_SORT_1 [L135] SORT_9 var_26 = var_26_arg_0; [L136] SORT_9 var_27_arg_0 = var_26; [L137] SORT_9 var_27_arg_1 = var_11; [L138] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L139] SORT_1 var_31_arg_0 = state_29; [L140] var_31_arg_0 = var_31_arg_0 & mask_SORT_1 [L141] SORT_9 var_31 = var_31_arg_0; [L142] SORT_9 var_32_arg_0 = var_31; [L143] SORT_9 var_32_arg_1 = var_11; [L144] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L145] SORT_1 var_33_arg_0 = var_27; [L146] SORT_1 var_33_arg_1 = var_32; [L147] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L148] SORT_1 var_34_arg_0 = var_25; [L149] SORT_1 var_34_arg_1 = var_33; [L150] SORT_1 var_34 = var_34_arg_0 | var_34_arg_1; [L151] SORT_1 var_35_arg_0 = state_13; [L152] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 [L153] SORT_9 var_35 = var_35_arg_0; [L154] SORT_9 var_36_arg_0 = var_35; [L155] SORT_9 var_36_arg_1 = var_11; [L156] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L157] SORT_1 var_37_arg_0 = state_20; [L158] var_37_arg_0 = var_37_arg_0 & mask_SORT_1 [L159] SORT_9 var_37 = var_37_arg_0; [L160] SORT_9 var_38_arg_0 = var_37; [L161] SORT_9 var_38_arg_1 = var_11; [L162] SORT_1 var_38 = var_38_arg_0 == var_38_arg_1; [L163] SORT_1 var_39_arg_0 = var_36; [L164] SORT_1 var_39_arg_1 = var_38; [L165] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L166] SORT_1 var_40_arg_0 = var_34; [L167] SORT_1 var_40_arg_1 = var_39; [L168] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L169] SORT_1 var_41_arg_0 = state_13; [L170] var_41_arg_0 = var_41_arg_0 & mask_SORT_1 [L171] SORT_9 var_41 = var_41_arg_0; [L172] SORT_9 var_42_arg_0 = var_41; [L173] SORT_9 var_42_arg_1 = var_11; [L174] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L175] SORT_1 var_43_arg_0 = state_29; [L176] var_43_arg_0 = var_43_arg_0 & mask_SORT_1 [L177] SORT_9 var_43 = var_43_arg_0; [L178] SORT_9 var_44_arg_0 = var_43; [L179] SORT_9 var_44_arg_1 = var_11; [L180] SORT_1 var_44 = var_44_arg_0 == var_44_arg_1; [L181] SORT_1 var_45_arg_0 = var_42; [L182] SORT_1 var_45_arg_1 = var_44; [L183] SORT_1 var_45 = var_45_arg_0 & var_45_arg_1; [L184] SORT_1 var_46_arg_0 = var_40; [L185] SORT_1 var_46_arg_1 = var_45; [L186] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L187] SORT_1 var_47_arg_0 = state_20; [L188] var_47_arg_0 = var_47_arg_0 & mask_SORT_1 [L189] SORT_9 var_47 = var_47_arg_0; [L190] SORT_9 var_48_arg_0 = var_47; [L191] SORT_9 var_48_arg_1 = var_11; [L192] SORT_1 var_48 = var_48_arg_0 == var_48_arg_1; [L193] SORT_1 var_49_arg_0 = state_29; [L194] var_49_arg_0 = var_49_arg_0 & mask_SORT_1 [L195] SORT_9 var_49 = var_49_arg_0; [L196] SORT_9 var_50_arg_0 = var_49; [L197] SORT_9 var_50_arg_1 = var_11; [L198] SORT_1 var_50 = var_50_arg_0 == var_50_arg_1; [L199] SORT_1 var_51_arg_0 = var_48; [L200] SORT_1 var_51_arg_1 = var_50; [L201] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L202] SORT_1 var_52_arg_0 = var_46; [L203] SORT_1 var_52_arg_1 = var_51; [L204] SORT_1 var_52 = var_52_arg_0 | var_52_arg_1; [L205] SORT_1 var_53_arg_0 = var_52; [L206] SORT_1 var_53 = ~var_53_arg_0; [L207] SORT_1 var_56_arg_0 = var_53; [L208] SORT_1 var_56 = ~var_56_arg_0; [L209] SORT_1 var_57_arg_0 = var_28; [L210] SORT_1 var_57_arg_1 = var_56; [L211] SORT_1 var_57 = var_57_arg_0 & var_57_arg_1; [L212] var_57 = var_57 & mask_SORT_1 [L213] SORT_1 bad_58_arg_0 = var_57; [L214] CALL __VERIFIER_assert(!(bad_58_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 13:56:56,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:56:57,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:56:57,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:56:58,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:56:58,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:56:58,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:56:58,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:56:58,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:56:58,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:56:58,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:56:58,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:56:58,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:56:58,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:56:58,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:56:58,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:56:58,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:56:58,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:56:58,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:56:58,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:56:58,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:56:58,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:56:58,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:56:58,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:56:58,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:56:58,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:56:58,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:56:58,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:56:58,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:56:58,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:56:58,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:56:58,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:56:58,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:56:58,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:56:58,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:56:58,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:56:58,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:56:58,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:56:58,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:56:58,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:56:58,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:56:58,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:56:58,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 13:56:58,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:56:58,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:56:58,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:56:58,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:56:58,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:56:58,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:56:58,066 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:56:58,067 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:56:58,067 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:56:58,067 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:56:58,067 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:56:58,067 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:56:58,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:56:58,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:56:58,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:56:58,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:56:58,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:56:58,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:56:58,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:56:58,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:56:58,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:58,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:56:58,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:56:58,072 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 [2022-12-14 13:56:58,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:56:58,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:56:58,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:56:58,316 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:56:58,316 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:56:58,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:57:00,956 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:57:01,175 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:57:01,175 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:57:01,182 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/c8d99d3ac/8d2c0f9c8dd24446bb7698ee62d30eb0/FLAG7836f2d08 [2022-12-14 13:57:01,193 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/data/c8d99d3ac/8d2c0f9c8dd24446bb7698ee62d30eb0 [2022-12-14 13:57:01,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:57:01,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:57:01,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:57:01,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:57:01,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:57:01,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28927962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01, skipping insertion in model container [2022-12-14 13:57:01,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:57:01,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:57:01,327 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-12-14 13:57:01,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:01,398 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:57:01,406 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_7723bceb-651c-4fbf-a5b3-e407a531c9ed/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-12-14 13:57:01,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:01,457 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:57:01,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01 WrapperNode [2022-12-14 13:57:01,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:57:01,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:01,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:57:01,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:57:01,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,515 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 420 [2022-12-14 13:57:01,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:01,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:57:01,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:57:01,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:57:01,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,543 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:57:01,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:57:01,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:57:01,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:57:01,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (1/1) ... [2022-12-14 13:57:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:57:01,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:57:01,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:57:01,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:57:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:57:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:57:01,728 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:57:01,730 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:57:02,012 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:57:02,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:57:02,019 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:57:02,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:02 BoogieIcfgContainer [2022-12-14 13:57:02,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:57:02,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:57:02,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:57:02,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:57:02,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:57:01" (1/3) ... [2022-12-14 13:57:02,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8ea961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:02, skipping insertion in model container [2022-12-14 13:57:02,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:01" (2/3) ... [2022-12-14 13:57:02,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8ea961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:02, skipping insertion in model container [2022-12-14 13:57:02,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:02" (3/3) ... [2022-12-14 13:57:02,029 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2022-12-14 13:57:02,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:57:02,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:57:02,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:57:02,099 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;@747cac55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:57:02,100 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:57:02,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 13:57:02,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:57:02,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 13:57:02,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:57:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:57:02,116 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 13:57:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:57:02,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411775870] [2022-12-14 13:57:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:02,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:57:02,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:57:02,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:57:02,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 13:57:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:02,285 WARN L261 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-14 13:57:02,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:02,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:57:02,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:57:02,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411775870] [2022-12-14 13:57:02,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411775870] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:57:02,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:57:02,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:57:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251999242] [2022-12-14 13:57:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:57:02,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:57:02,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:57:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:57:02,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:57:02,627 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:57:02,707 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 13:57:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:57:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 13:57:02,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:57:02,714 INFO L225 Difference]: With dead ends: 20 [2022-12-14 13:57:02,715 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 13:57:02,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:57:02,719 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:57:02,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:57:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 13:57:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 13:57:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:02,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 13:57:02,741 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 13:57:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:57:02,742 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 13:57:02,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 13:57:02,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:57:02,742 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:57:02,742 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 13:57:02,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:57:02,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:57:02,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:57:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:57:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 13:57:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:57:02,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468066818] [2022-12-14 13:57:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:02,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:57:02,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:57:02,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:57:02,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 13:57:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:03,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 126 conjunts are in the unsatisfiable core [2022-12-14 13:57:03,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:03,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:57:06,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:06,492 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:57:06,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468066818] [2022-12-14 13:57:06,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468066818] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:57:06,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [975545718] [2022-12-14 13:57:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:06,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:57:06,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:57:06,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:57:06,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 13:57:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:06,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 127 conjunts are in the unsatisfiable core [2022-12-14 13:57:06,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:07,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:57:09,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:09,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [975545718] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:57:09,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780374669] [2022-12-14 13:57:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:09,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:57:09,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:57:09,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:57:09,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:57:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:57:09,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 179 conjunts are in the unsatisfiable core [2022-12-14 13:57:09,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:10,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:57:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:16,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780374669] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:57:16,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 13:57:16,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 6, 6] total 14 [2022-12-14 13:57:16,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343031065] [2022-12-14 13:57:16,580 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 13:57:16,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 13:57:16,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 13:57:16,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 13:57:16,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-12-14 13:57:16,583 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:16,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:57:16,859 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 13:57:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 13:57:16,860 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 13:57:16,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:57:16,860 INFO L225 Difference]: With dead ends: 16 [2022-12-14 13:57:16,860 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 13:57:16,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-12-14 13:57:16,862 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:57:16,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:57:16,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 13:57:16,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 13:57:16,865 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) [2022-12-14 13:57:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 13:57:16,865 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 13:57:16,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:57:16,865 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 13:57:16,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:57:16,866 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 13:57:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:57:16,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:57:16,866 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 13:57:16,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 13:57:17,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:57:17,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 13:57:17,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 13:57:17,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:57:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:57:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 13:57:17,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:57:17,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923550952] [2022-12-14 13:57:17,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:57:17,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 13:57:17,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:57:17,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 13:57:17,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 13:57:17,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:57:17,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:57:17,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 174 conjunts are in the unsatisfiable core [2022-12-14 13:57:17,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:57:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:57:18,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:58:08,188 WARN L233 SmtUtils]: Spent 28.94s on a formula simplification. DAG size of input: 318 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:58:24,859 WARN L233 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 256 DAG size of output: 245 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:58:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:58:24,866 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 13:58:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923550952] [2022-12-14 13:58:24,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923550952] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:58:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [255506188] [2022-12-14 13:58:24,867 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:58:24,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 13:58:24,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 13:58:24,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 13:58:24,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 13:58:25,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:58:25,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:58:25,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 178 conjunts are in the unsatisfiable core [2022-12-14 13:58:25,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:58:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:58:25,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:59:34,121 WARN L233 SmtUtils]: Spent 35.20s on a formula simplification. DAG size of input: 309 DAG size of output: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:59:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:34,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [255506188] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:59:34,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897267863] [2022-12-14 13:59:34,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 13:59:34,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:59:34,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:59:34,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:59:34,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 13:59:34,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 13:59:34,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 13:59:34,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 173 conjunts are in the unsatisfiable core [2022-12-14 13:59:34,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:59:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:59:35,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:00:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:00:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897267863] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:00:03,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:00:03,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6, 6, 7, 7] total 22 [2022-12-14 14:00:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57804822] [2022-12-14 14:00:03,963 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:00:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-14 14:00:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:00:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-14 14:00:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=298, Unknown=24, NotChecked=0, Total=462 [2022-12-14 14:00:03,965 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 22 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:00:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:00:04,318 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-14 14:00:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 14:00:04,318 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 22 states have internal predecessors, (46), 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 [2022-12-14 14:00:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:00:04,318 INFO L225 Difference]: With dead ends: 19 [2022-12-14 14:00:04,318 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 14:00:04,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 154.1s TimeCoverageRelationStatistics Valid=202, Invalid=424, Unknown=24, NotChecked=0, Total=650 [2022-12-14 14:00:04,319 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:00:04,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:00:04,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 14:00:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 14:00:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:00:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 14:00:04,322 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-14 14:00:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:00:04,323 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 14:00:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.090909090909091) internal successors, (46), 22 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:00:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 14:00:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:00:04,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:00:04,323 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 14:00:04,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 14:00:04,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 14:00:04,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 14:00:04,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:00:04,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:00:04,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:00:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-14 14:00:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:00:04,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157332377] [2022-12-14 14:00:04,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:00:04,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:00:04,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:00:04,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:00:04,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-14 14:00:05,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:00:05,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:00:05,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 385 conjunts are in the unsatisfiable core [2022-12-14 14:00:05,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:00:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:00:20,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:00:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:00:39,598 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:00:39,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157332377] [2022-12-14 14:00:39,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157332377] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:00:39,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1080782076] [2022-12-14 14:00:39,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:00:39,598 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:00:39,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:00:39,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:00:39,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-12-14 14:00:40,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:00:40,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:00:40,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 388 conjunts are in the unsatisfiable core [2022-12-14 14:00:40,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:00:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:00:52,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:01:13,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:01:13,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1080782076] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:01:13,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384673589] [2022-12-14 14:01:13,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:01:13,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:01:13,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:01:13,215 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:01:13,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:01:13,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-14 14:01:13,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:01:13,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 378 conjunts are in the unsatisfiable core [2022-12-14 14:01:13,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:01:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 14:01:27,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:01:50,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 14:01:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384673589] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:01:50,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:01:50,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 9, 8] total 27 [2022-12-14 14:01:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666039161] [2022-12-14 14:01:50,952 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:01:50,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 14:01:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:01:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 14:01:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2022-12-14 14:01:50,953 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:01:51,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:01:51,469 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-12-14 14:01:51,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:01:51,470 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 14:01:51,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:01:51,471 INFO L225 Difference]: With dead ends: 15 [2022-12-14 14:01:51,471 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:01:51,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-12-14 14:01:51,472 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:01:51,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 12 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:01:51,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:01:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:01:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:01:51,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:01:51,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 14:01:51,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:01:51,473 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:01:51,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:01:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:01:51,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:01:51,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:01:51,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-14 14:01:51,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 14:01:51,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-12-14 14:01:52,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 14:01:52,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 14:01:52,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L895 garLoopResultBuilder]: At program point L79-2(lines 79 422) the Hoare annotation is: (let ((.cse0 (= (_ bv85 8) |ULTIMATE.start_main_~var_71~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_74~0#1| (_ bv67 8))) (.cse7 (= |ULTIMATE.start_main_~var_77~0#1| (_ bv78 8))) (.cse8 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv1 32))) (.cse9 (= |ULTIMATE.start_main_~var_6~0#1| (_ bv0 8))) (.cse10 (= (_ bv1 8) |ULTIMATE.start_main_~var_28~0#1|))) (or (let ((.cse6 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (let ((.cse3 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_13~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|))) (.cse4 (not (= |ULTIMATE.start_main_~var_11~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_20~0#1|) .cse6)))))) (.cse5 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_7~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|)))) (or (and .cse3 .cse4 .cse5) (and (or (and .cse3 .cse4) (and (or .cse3 .cse4) .cse5)) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_29~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|))))) (exists ((|v_ULTIMATE.start_main_#t~nondet8#1_13| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_5~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_13|) .cse6)))) .cse7 .cse8 .cse9 .cse10)) (and .cse0 .cse1 (= (_ bv27 8) |ULTIMATE.start_main_~var_62~0#1|) .cse2 (= |ULTIMATE.start_main_~var_59~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~var_59~0#1| |ULTIMATE.start_main_~state_60~0#1|) .cse7 (= (_ bv0 8) |ULTIMATE.start_main_~state_13~0#1|) .cse8 (= |ULTIMATE.start_main_~state_7~0#1| |ULTIMATE.start_main_~var_6~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_68~0#1|) (= |ULTIMATE.start_main_~var_6~0#1| |ULTIMATE.start_main_~state_20~0#1|) (= |ULTIMATE.start_main_~var_28~0#1| |ULTIMATE.start_main_~state_29~0#1|) .cse9 .cse10 (= (_ bv0 8) (bvadd (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))))) [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point L79-3(lines 79 422) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 424) the Hoare annotation is: false [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 14:01:52,285 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 14:01:52,286 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 14:01:52,288 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-14 14:01:52,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:01:52,295 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-12-14 14:01:52,300 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-12-14 14:01:52,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:01:52 BoogieIcfgContainer [2022-12-14 14:01:52,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:01:52,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:01:52,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:01:52,301 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:01:52,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:02" (3/4) ... [2022-12-14 14:01:52,304 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:01:52,313 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 14:01:52,313 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:01:52,313 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:01:52,330 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && var_74 == 67bv8) && cond == 1bv32) && (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)) || (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || ((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) || !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_29), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)))) && (\exists v_ULTIMATE.start_main_#t~nondet8#1_13 : bv8 :: input_5 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet8#1_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_77 == 78bv8) && var_11 == 1bv32) && var_6 == 0bv8) && 1bv8 == var_28) || (((((((((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && 27bv8 == var_62) && var_74 == 67bv8) && var_59 == 0bv8) && var_59 == state_60) && var_77 == 78bv8) && 0bv8 == state_13) && var_11 == 1bv32) && state_7 == var_6) && 0bv8 == state_68) && var_6 == state_20) && var_28 == state_29) && var_6 == 0bv8) && 1bv8 == var_28) && 0bv8 == ~bvadd128(1bv8, mask_SORT_3)) [2022-12-14 14:01:52,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:01:52,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:01:52,354 INFO L158 Benchmark]: Toolchain (without parser) took 291158.92ms. Allocated memory was 75.5MB in the beginning and 394.3MB in the end (delta: 318.8MB). Free memory was 53.5MB in the beginning and 300.4MB in the end (delta: -246.8MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,354 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:01:52,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.55ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 34.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.06ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 34.1MB in the beginning and 80.7MB in the end (delta: -46.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,355 INFO L158 Benchmark]: Boogie Preprocessor took 31.99ms. Allocated memory is still 102.8MB. Free memory was 80.7MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,355 INFO L158 Benchmark]: RCFGBuilder took 472.68ms. Allocated memory is still 102.8MB. Free memory was 78.2MB in the beginning and 71.0MB in the end (delta: 7.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,355 INFO L158 Benchmark]: TraceAbstraction took 290277.91ms. Allocated memory was 102.8MB in the beginning and 394.3MB in the end (delta: 291.5MB). Free memory was 70.5MB in the beginning and 306.7MB in the end (delta: -236.2MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,356 INFO L158 Benchmark]: Witness Printer took 52.49ms. Allocated memory is still 394.3MB. Free memory was 306.7MB in the beginning and 300.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 14:01:52,357 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.55ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 34.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.06ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 34.1MB in the beginning and 80.7MB in the end (delta: -46.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.99ms. Allocated memory is still 102.8MB. Free memory was 80.7MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.68ms. Allocated memory is still 102.8MB. Free memory was 78.2MB in the beginning and 71.0MB in the end (delta: 7.2MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * TraceAbstraction took 290277.91ms. Allocated memory was 102.8MB in the beginning and 394.3MB in the end (delta: 291.5MB). Free memory was 70.5MB in the beginning and 306.7MB in the end (delta: -236.2MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Witness Printer took 52.49ms. Allocated memory is still 394.3MB. Free memory was 306.7MB in the beginning and 300.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,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: 290.2s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 15 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 115 SyntacticMatches, 10 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 161.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 28, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 184 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 283.8s InterpolantComputationTime, 104 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 184 ConstructedInterpolants, 74 QuantifiedInterpolants, 20260 SizeOfPredicates, 2329 NumberOfNonLiveVariables, 6285 ConjunctsInSsa, 2184 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 33/144 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: 79]: Loop Invariant [2022-12-14 14:01:52,362 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-12-14 14:01:52,363 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] Derived loop invariant: (((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && var_74 == 67bv8) && cond == 1bv32) && (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)) || (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || ((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) || !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_29), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)))) && (\exists v_ULTIMATE.start_main_#t~nondet8#1_13 : bv8 :: input_5 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet8#1_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_77 == 78bv8) && var_11 == 1bv32) && var_6 == 0bv8) && 1bv8 == var_28) || (((((((((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && 27bv8 == var_62) && var_74 == 67bv8) && var_59 == 0bv8) && var_59 == state_60) && var_77 == 78bv8) && 0bv8 == state_13) && var_11 == 1bv32) && state_7 == var_6) && 0bv8 == state_68) && var_6 == state_20) && var_28 == state_29) && var_6 == 0bv8) && 1bv8 == var_28) && 0bv8 == ~bvadd128(1bv8, mask_SORT_3)) RESULT: Ultimate proved your program to be correct! [2022-12-14 14:01:52,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7723bceb-651c-4fbf-a5b3-e407a531c9ed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE