./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0 --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 7079b3b743df1a5b92403bcbdc45dcbd5b2b4b373695675f6bb47b5ecc70ce4f --- 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-e04fb08 [2022-11-16 19:31:19,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:31:19,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:31:19,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:31:19,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:31:19,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:31:19,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:31:19,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:31:19,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:31:19,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:31:19,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:31:19,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:31:19,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:31:19,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:31:19,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:31:19,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:31:19,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:31:19,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:31:19,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:31:19,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:31:19,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:31:19,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:31:19,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:31:19,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:31:19,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:31:19,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:31:19,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:31:19,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:31:19,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:31:19,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:31:19,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:31:19,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:31:19,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:31:19,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:31:19,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:31:19,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:31:19,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:31:19,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:31:19,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:31:19,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:31:19,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:31:19,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 19:31:20,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:31:20,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:31:20,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:31:20,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:31:20,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:31:20,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:31:20,025 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:31:20,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:31:20,025 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:31:20,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:31:20,026 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:31:20,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:31:20,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:31:20,026 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:31:20,027 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:31:20,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:31:20,027 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:31:20,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:31:20,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:31:20,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:31:20,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:31:20,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:31:20,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:31:20,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:31:20,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:31:20,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:31:20,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:31:20,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:31:20,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:20,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:31:20,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:31:20,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:31:20,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:31:20,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:31:20,036 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7079b3b743df1a5b92403bcbdc45dcbd5b2b4b373695675f6bb47b5ecc70ce4f [2022-11-16 19:31:20,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:31:20,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:31:20,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:31:20,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:31:20,424 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:31:20,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:31:20,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/80aaed7b3/4ed5c656b2f646e78d2103ca83ddb4f0/FLAG88adbc33f [2022-11-16 19:31:21,265 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:31:21,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:31:21,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/80aaed7b3/4ed5c656b2f646e78d2103ca83ddb4f0/FLAG88adbc33f [2022-11-16 19:31:21,456 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/80aaed7b3/4ed5c656b2f646e78d2103ca83ddb4f0 [2022-11-16 19:31:21,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:31:21,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:31:21,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:21,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:31:21,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:31:21,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:21" (1/1) ... [2022-11-16 19:31:21,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63de5267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:21, skipping insertion in model container [2022-11-16 19:31:21,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:21" (1/1) ... [2022-11-16 19:31:21,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:31:21,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:31:21,889 WARN L229 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1014,1027] [2022-11-16 19:31:22,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:22,326 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:31:22,339 WARN L229 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1014,1027] [2022-11-16 19:31:22,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:22,562 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:31:22,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22 WrapperNode [2022-11-16 19:31:22,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:22,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:22,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:31:22,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:31:22,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,867 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2883 [2022-11-16 19:31:22,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:22,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:31:22,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:31:22,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:31:22,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:22,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:31:23,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:31:23,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:31:23,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:31:23,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (1/1) ... [2022-11-16 19:31:23,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:23,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:31:23,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:31:23,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:31:23,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:31:23,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:31:23,813 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:31:23,816 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:31:29,417 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:31:52,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:31:52,202 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:31:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:52 BoogieIcfgContainer [2022-11-16 19:31:52,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:31:52,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:31:52,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:31:52,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:31:52,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:21" (1/3) ... [2022-11-16 19:31:52,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e0c5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:52, skipping insertion in model container [2022-11-16 19:31:52,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:22" (2/3) ... [2022-11-16 19:31:52,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e0c5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:31:52, skipping insertion in model container [2022-11-16 19:31:52,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:52" (3/3) ... [2022-11-16 19:31:52,223 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:31:52,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:31:52,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:31:52,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:31:52,335 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;@34eab3f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:31:52,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:31:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:31:52,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 19:31:52,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:31:52,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 19:31:52,354 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:31:52,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:31:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash 57108221, now seen corresponding path program 1 times [2022-11-16 19:31:52,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:31:52,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87886927] [2022-11-16 19:31:52,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:31:52,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:31:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:31:52,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 19:31:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 19:31:53,213 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 19:31:53,221 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 19:31:53,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 19:31:53,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:31:53,232 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-16 19:31:53,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 19:31:53,426 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 19:31:53,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:31:53 BoogieIcfgContainer [2022-11-16 19:31:53,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 19:31:53,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 19:31:53,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 19:31:53,453 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 19:31:53,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:31:52" (3/4) ... [2022-11-16 19:31:53,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 19:31:53,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 19:31:53,461 INFO L158 Benchmark]: Toolchain (without parser) took 32000.35ms. Allocated memory was 138.4MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 103.1MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 102.5MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,462 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:31:53,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1097.31ms. Allocated memory is still 138.4MB. Free memory was 102.8MB in the beginning and 63.5MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 304.35ms. Allocated memory is still 138.4MB. Free memory was 63.5MB in the beginning and 93.0MB in the end (delta: -29.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,471 INFO L158 Benchmark]: Boogie Preprocessor took 254.96ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 78.3MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,472 INFO L158 Benchmark]: RCFGBuilder took 29080.30ms. Allocated memory was 138.4MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 78.3MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 791.1MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,474 INFO L158 Benchmark]: TraceAbstraction took 1241.50ms. Allocated memory is still 6.4GB. Free memory was 5.8GB in the beginning and 6.2GB in the end (delta: -433.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-11-16 19:31:53,474 INFO L158 Benchmark]: Witness Printer took 7.34ms. Allocated memory is still 6.4GB. Free memory is still 6.2GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 19:31:53,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 50.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1097.31ms. Allocated memory is still 138.4MB. Free memory was 102.8MB in the beginning and 63.5MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 304.35ms. Allocated memory is still 138.4MB. Free memory was 63.5MB in the beginning and 93.0MB in the end (delta: -29.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 254.96ms. Allocated memory is still 138.4MB. Free memory was 93.0MB in the beginning and 78.3MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 29080.30ms. Allocated memory was 138.4MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 78.3MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 791.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1241.50ms. Allocated memory is still 6.4GB. Free memory was 5.8GB in the beginning and 6.2GB in the end (delta: -433.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 7.34ms. Allocated memory is still 6.4GB. Free memory is still 6.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 235, overapproximation of bitwiseAnd at line 177. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_24 = 0; [L39] const SORT_4 var_67 = 1; [L40] const SORT_4 var_68 = 0; [L41] const SORT_2 var_79 = 1; [L42] const SORT_3 var_81 = 0; [L43] const SORT_4 var_84 = 4; [L44] const SORT_2 var_88 = 0; [L45] const SORT_4 var_155 = 2; [L46] const SORT_2 var_158 = 2; [L47] const SORT_4 var_182 = 3; [L48] const SORT_2 var_185 = 3; [L50] SORT_1 input_80; [L51] SORT_1 input_90; [L52] SORT_1 input_92; [L53] SORT_1 input_99; [L54] SORT_1 input_101; [L55] SORT_1 input_108; [L56] SORT_1 input_110; [L57] SORT_1 input_117; [L58] SORT_1 input_209; [L59] SORT_1 input_213; [L60] SORT_1 input_216; [L61] SORT_1 input_217; [L62] SORT_1 input_218; [L63] SORT_1 input_219; [L64] SORT_1 input_220; [L65] SORT_1 input_221; [L66] SORT_1 input_231; [L67] SORT_1 input_237; [L68] SORT_1 input_243; [L69] SORT_1 input_249; [L70] SORT_1 input_264; [L71] SORT_1 input_282; [L72] SORT_1 input_300; [L73] SORT_1 input_318; [L75] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_2 init_7_arg_1 = var_5; [L107] state_6 = init_7_arg_1 [L108] SORT_2 init_9_arg_1 = var_5; [L109] state_8 = init_9_arg_1 [L110] SORT_2 init_11_arg_1 = var_5; [L111] state_10 = init_11_arg_1 [L112] SORT_2 init_13_arg_1 = var_5; [L113] state_12 = init_13_arg_1 [L114] SORT_2 init_15_arg_1 = var_5; [L115] state_14 = init_15_arg_1 [L116] SORT_2 init_17_arg_1 = var_5; [L117] state_16 = init_17_arg_1 [L118] SORT_2 init_19_arg_1 = var_5; [L119] state_18 = init_19_arg_1 [L120] SORT_2 init_21_arg_1 = var_5; [L121] state_20 = init_21_arg_1 [L122] SORT_2 init_23_arg_1 = var_5; [L123] state_22 = init_23_arg_1 [L124] SORT_1 init_26_arg_1 = var_24; [L125] state_25 = init_26_arg_1 [L126] SORT_1 init_28_arg_1 = var_24; [L127] state_27 = init_28_arg_1 [L128] SORT_1 init_30_arg_1 = var_24; [L129] state_29 = init_30_arg_1 [L130] SORT_1 init_32_arg_1 = var_24; [L131] state_31 = init_32_arg_1 [L132] SORT_1 init_34_arg_1 = var_24; [L133] state_33 = init_34_arg_1 [L134] SORT_1 init_36_arg_1 = var_24; [L135] state_35 = init_36_arg_1 [L136] SORT_1 init_38_arg_1 = var_24; [L137] state_37 = init_38_arg_1 [L138] SORT_1 init_40_arg_1 = var_24; [L139] state_39 = init_40_arg_1 [L140] SORT_1 init_42_arg_1 = var_24; [L141] state_41 = init_42_arg_1 [L142] SORT_1 init_44_arg_1 = var_24; [L143] state_43 = init_44_arg_1 [L144] SORT_1 init_46_arg_1 = var_24; [L145] state_45 = init_46_arg_1 [L146] SORT_1 init_48_arg_1 = var_24; [L147] state_47 = init_48_arg_1 [L148] SORT_1 init_50_arg_1 = var_24; [L149] state_49 = init_50_arg_1 [L150] SORT_1 init_52_arg_1 = var_24; [L151] state_51 = init_52_arg_1 [L152] SORT_1 init_54_arg_1 = var_24; [L153] state_53 = init_54_arg_1 [L154] SORT_1 init_56_arg_1 = var_24; [L155] state_55 = init_56_arg_1 [L156] SORT_1 init_58_arg_1 = var_24; [L157] state_57 = init_58_arg_1 [L158] SORT_1 init_60_arg_1 = var_24; [L159] state_59 = init_60_arg_1 [L160] SORT_1 init_62_arg_1 = var_24; [L161] state_61 = init_62_arg_1 [L162] SORT_1 init_64_arg_1 = var_24; [L163] state_63 = init_64_arg_1 [L164] SORT_1 init_66_arg_1 = var_24; [L165] state_65 = init_66_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_8=0, var_155=2, var_158=2, var_182=3, var_185=3, var_24=0, var_5=0, var_67=1, var_68=0, var_79=1, var_81=0, var_84=4, var_88=0] [L168] input_80 = __VERIFIER_nondet_uchar() [L169] input_90 = __VERIFIER_nondet_uchar() [L170] input_92 = __VERIFIER_nondet_uchar() [L171] input_99 = __VERIFIER_nondet_uchar() [L172] input_101 = __VERIFIER_nondet_uchar() [L173] input_108 = __VERIFIER_nondet_uchar() [L174] input_110 = __VERIFIER_nondet_uchar() [L175] input_117 = __VERIFIER_nondet_uchar() [L176] input_209 = __VERIFIER_nondet_uchar() [L177] input_209 = input_209 & mask_SORT_1 [L178] input_213 = __VERIFIER_nondet_uchar() [L179] input_213 = input_213 & mask_SORT_1 [L180] input_216 = __VERIFIER_nondet_uchar() [L181] input_216 = input_216 & mask_SORT_1 [L182] input_217 = __VERIFIER_nondet_uchar() [L183] input_217 = input_217 & mask_SORT_1 [L184] input_218 = __VERIFIER_nondet_uchar() [L185] input_218 = input_218 & mask_SORT_1 [L186] input_219 = __VERIFIER_nondet_uchar() [L187] input_219 = input_219 & mask_SORT_1 [L188] input_220 = __VERIFIER_nondet_uchar() [L189] input_220 = input_220 & mask_SORT_1 [L190] input_221 = __VERIFIER_nondet_uchar() [L191] input_221 = input_221 & mask_SORT_1 [L192] input_231 = __VERIFIER_nondet_uchar() [L193] input_231 = input_231 & mask_SORT_1 [L194] input_237 = __VERIFIER_nondet_uchar() [L195] input_237 = input_237 & mask_SORT_1 [L196] input_243 = __VERIFIER_nondet_uchar() [L197] input_243 = input_243 & mask_SORT_1 [L198] input_249 = __VERIFIER_nondet_uchar() [L199] input_249 = input_249 & mask_SORT_1 [L200] input_264 = __VERIFIER_nondet_uchar() [L201] input_282 = __VERIFIER_nondet_uchar() [L202] input_300 = __VERIFIER_nondet_uchar() [L203] input_318 = __VERIFIER_nondet_uchar() [L206] SORT_1 var_69_arg_0 = state_33; [L207] SORT_4 var_69_arg_1 = var_67; [L208] SORT_4 var_69_arg_2 = var_68; [L209] SORT_4 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L210] SORT_1 var_70_arg_0 = state_43; [L211] SORT_4 var_70_arg_1 = var_67; [L212] SORT_4 var_70_arg_2 = var_68; [L213] SORT_4 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L214] SORT_4 var_71_arg_0 = var_69; [L215] SORT_4 var_71_arg_1 = var_70; [L216] SORT_4 var_71 = var_71_arg_0 + var_71_arg_1; [L217] SORT_1 var_72_arg_0 = state_53; [L218] SORT_4 var_72_arg_1 = var_67; [L219] SORT_4 var_72_arg_2 = var_68; [L220] SORT_4 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L221] SORT_4 var_73_arg_0 = var_71; [L222] SORT_4 var_73_arg_1 = var_72; [L223] SORT_4 var_73 = var_73_arg_0 + var_73_arg_1; [L224] SORT_1 var_74_arg_0 = state_63; [L225] SORT_4 var_74_arg_1 = var_67; [L226] SORT_4 var_74_arg_2 = var_68; [L227] SORT_4 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L228] SORT_4 var_75_arg_0 = var_73; [L229] SORT_4 var_75_arg_1 = var_74; [L230] SORT_4 var_75 = var_75_arg_0 + var_75_arg_1; [L231] var_75 = var_75 & mask_SORT_4 [L232] SORT_4 var_76_arg_0 = var_75; [L233] SORT_4 var_76_arg_1 = var_67; [L234] SORT_1 var_76 = var_76_arg_0 <= var_76_arg_1; [L235] SORT_1 var_77_arg_0 = ~state_65; [L236] var_77_arg_0 = var_77_arg_0 & mask_SORT_1 [L237] SORT_1 var_77_arg_1 = ~var_76; [L238] var_77_arg_1 = var_77_arg_1 & mask_SORT_1 [L239] SORT_1 var_77 = var_77_arg_0 & var_77_arg_1; [L240] var_77 = var_77 & mask_SORT_1 [L241] SORT_1 bad_78_arg_0 = var_77; [L242] CALL __VERIFIER_assert(!(bad_78_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: 0.9s, 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 19:31:53,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0 --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 7079b3b743df1a5b92403bcbdc45dcbd5b2b4b373695675f6bb47b5ecc70ce4f --- 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-e04fb08 [2022-11-16 19:31:56,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:31:56,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:31:56,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:31:56,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:31:56,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:31:56,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:31:56,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:31:56,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:31:56,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:31:56,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:31:56,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:31:56,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:31:56,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:31:56,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:31:56,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:31:56,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:31:56,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:31:56,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:31:56,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:31:56,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:31:56,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:31:56,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:31:56,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:31:56,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:31:56,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:31:56,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:31:56,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:31:56,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:31:56,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:31:56,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:31:56,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:31:56,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:31:56,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:31:56,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:31:56,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:31:56,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:31:56,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:31:56,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:31:56,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:31:56,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:31:56,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-16 19:31:56,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:31:56,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:31:56,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:31:56,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:31:56,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:31:56,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:31:56,749 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:31:56,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:31:56,750 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:31:56,750 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:31:56,752 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:31:56,752 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:31:56,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:31:56,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:31:56,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:31:56,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:31:56,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:31:56,755 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 19:31:56,756 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 19:31:56,756 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 19:31:56,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:31:56,756 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:31:56,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:31:56,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:31:56,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 19:31:56,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:31:56,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:56,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:31:56,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:31:56,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:31:56,759 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 19:31:56,759 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 19:31:56,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:31:56,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:31:56,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 19:31:56,761 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7079b3b743df1a5b92403bcbdc45dcbd5b2b4b373695675f6bb47b5ecc70ce4f [2022-11-16 19:31:57,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:31:57,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:31:57,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:31:57,272 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:31:57,273 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:31:57,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:31:57,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/a7fe55c10/5a5e4f229a744e079431291f5cf0d4c5/FLAGe61aa7605 [2022-11-16 19:31:58,305 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:31:58,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:31:58,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/a7fe55c10/5a5e4f229a744e079431291f5cf0d4c5/FLAGe61aa7605 [2022-11-16 19:31:58,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/data/a7fe55c10/5a5e4f229a744e079431291f5cf0d4c5 [2022-11-16 19:31:58,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:31:58,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:31:58,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:58,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:31:58,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:31:58,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:58" (1/1) ... [2022-11-16 19:31:58,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bdac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:58, skipping insertion in model container [2022-11-16 19:31:58,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:31:58" (1/1) ... [2022-11-16 19:31:58,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:31:58,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:31:58,825 WARN L229 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1014,1027] [2022-11-16 19:31:59,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:59,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:31:59,371 WARN L229 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_5b4e9808-1e85-46e4-8d7c-a90aba246b96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.anderson.4.prop1-func-interl.c[1014,1027] [2022-11-16 19:31:59,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:31:59,566 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:31:59,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59 WrapperNode [2022-11-16 19:31:59,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:31:59,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:59,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:31:59,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:31:59,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,792 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1847 [2022-11-16 19:31:59,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:31:59,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:31:59,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:31:59,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:31:59,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,895 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:31:59,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:31:59,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:31:59,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:31:59,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (1/1) ... [2022-11-16 19:31:59,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:31:59,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:32:00,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:32:00,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:32:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:32:00,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:32:00,767 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:32:00,770 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:32:06,689 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:32:06,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:32:06,704 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 19:32:06,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:32:06 BoogieIcfgContainer [2022-11-16 19:32:06,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:32:06,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:32:06,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:32:06,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:32:06,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:31:58" (1/3) ... [2022-11-16 19:32:06,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df794c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:32:06, skipping insertion in model container [2022-11-16 19:32:06,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:31:59" (2/3) ... [2022-11-16 19:32:06,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df794c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:32:06, skipping insertion in model container [2022-11-16 19:32:06,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:32:06" (3/3) ... [2022-11-16 19:32:06,718 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.anderson.4.prop1-func-interl.c [2022-11-16 19:32:06,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:32:06,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:32:06,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:32:06,847 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;@2aec5ad1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:32:06,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:32:06,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 19:32:06,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:06,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 19:32:06,863 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:32:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:06,870 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 19:32:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:32:06,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581774575] [2022-11-16 19:32:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:32:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:32:06,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:32:06,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 19:32:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:07,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-16 19:32:07,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:32:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:07,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 19:32:07,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:32:07,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581774575] [2022-11-16 19:32:07,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581774575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:32:07,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:32:07,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:32:07,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781407426] [2022-11-16 19:32:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:32:07,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:32:07,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:32:07,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:32:07,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:32:07,985 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:32:09,114 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 19:32:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 19:32:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 19:32:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:32:09,126 INFO L225 Difference]: With dead ends: 20 [2022-11-16 19:32:09,127 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 19:32:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:32:09,135 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 19:32:09,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 19:32:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 19:32:09,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 19:32:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 19:32:09,177 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 19:32:09,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:32:09,178 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 19:32:09,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:32:09,178 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 19:32:09,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 19:32:09,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:32:09,179 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 19:32:09,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/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)] Ended with exit code 0 [2022-11-16 19:32:09,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:32:09,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:32:09,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:32:09,395 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 19:32:09,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:32:09,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543207231] [2022-11-16 19:32:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:09,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:32:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:32:09,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:32:09,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 19:32:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:12,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 144 conjunts are in the unsatisfiable core [2022-11-16 19:32:12,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:32:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:15,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:32:34,789 WARN L233 SmtUtils]: Spent 13.16s on a formula simplification that was a NOOP. DAG size: 283 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:32:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:35,909 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:32:35,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543207231] [2022-11-16 19:32:35,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543207231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:32:35,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [610761098] [2022-11-16 19:32:35,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:32:35,917 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:32:35,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:32:35,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:32:35,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-16 19:32:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:32:38,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-16 19:32:38,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:32:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:32:41,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:33:04,129 WARN L233 SmtUtils]: Spent 18.87s on a formula simplification. DAG size of input: 88 DAG size of output: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:33:54,276 WARN L233 SmtUtils]: Spent 42.78s on a formula simplification that was a NOOP. DAG size: 294 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:33:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:33:55,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [610761098] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:33:55,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562292197] [2022-11-16 19:33:55,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:33:55,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:33:55,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:33:55,451 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:33:55,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 19:33:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:33:56,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-16 19:33:56,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:33:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:33:59,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:34:59,071 WARN L233 SmtUtils]: Spent 53.72s on a formula simplification. DAG size of input: 90 DAG size of output: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:37:31,177 WARN L233 SmtUtils]: Spent 2.29m on a formula simplification. DAG size of input: 316 DAG size of output: 307 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:38:48,039 WARN L233 SmtUtils]: Spent 1.15m on a formula simplification that was a NOOP. DAG size: 311 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:38:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:38:48,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562292197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:38:48,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-16 19:38:48,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-11-16 19:38:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277022732] [2022-11-16 19:38:48,996 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-16 19:38:48,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 19:38:48,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-16 19:38:48,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 19:38:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=163, Unknown=12, NotChecked=0, Total=240 [2022-11-16 19:38:49,000 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:38:51,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-16 19:38:52,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:38:52,231 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 19:38:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 19:38:52,232 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 19:38:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:38:52,233 INFO L225 Difference]: With dead ends: 16 [2022-11-16 19:38:52,233 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 19:38:52,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 376.6s TimeCoverageRelationStatistics Valid=88, Invalid=206, Unknown=12, NotChecked=0, Total=306 [2022-11-16 19:38:52,236 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:38:52,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 23 Unchecked, 2.1s Time] [2022-11-16 19:38:52,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 19:38:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 19:38:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:38:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 19:38:52,244 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 19:38:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:38:52,244 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 19:38:52,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 19:38:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 19:38:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 19:38:52,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:38:52,246 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 19:38:52,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-16 19:38:52,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 19:38:52,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/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)] Forceful destruction successful, exit code 0 [2022-11-16 19:38:52,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:38:52,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:38:52,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:38:52,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 19:38:52,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 19:38:52,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106942253] [2022-11-16 19:38:52,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:38:52,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 19:38:52,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 19:38:52,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 19:38:52,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 19:38:58,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:38:58,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:38:58,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 241 conjunts are in the unsatisfiable core [2022-11-16 19:38:58,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:39:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:39:05,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:40:19,531 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification. DAG size of input: 93 DAG size of output: 93 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:41:34,666 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification that was a NOOP. DAG size: 280 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:43:21,951 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification that was a NOOP. DAG size: 1568 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 19:43:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:43:24,991 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-16 19:43:24,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106942253] [2022-11-16 19:43:24,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106942253] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:43:24,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1882695562] [2022-11-16 19:43:24,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 19:43:24,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 19:43:24,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 [2022-11-16 19:43:24,999 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 19:43:25,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b4e9808-1e85-46e4-8d7c-a90aba246b96/bin/utaipan-Xvt2sAort0/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-16 19:43:29,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 19:43:29,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 19:43:30,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 3111 conjuncts, 239 conjunts are in the unsatisfiable core [2022-11-16 19:43:30,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:43:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:43:45,319 INFO L328 TraceCheckSpWp]: Computing backward predicates...