./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba --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 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 --- 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-b5237d8 [2022-11-22 01:21:30,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:21:30,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:21:30,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:21:30,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:21:30,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:21:30,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:21:30,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:21:30,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:21:30,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:21:30,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:21:30,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:21:30,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:21:30,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:21:30,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:21:30,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:21:30,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:21:30,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:21:30,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:21:30,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:21:30,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:21:30,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:21:30,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:21:30,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:21:30,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:21:30,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:21:30,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:21:30,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:21:30,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:21:30,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:21:30,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:21:30,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:21:30,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:21:30,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:21:30,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:21:30,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:21:30,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:21:30,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:21:30,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:21:30,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:21:30,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:21:30,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:21:30,934 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:21:30,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:21:30,935 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:21:30,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:21:30,937 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:21:30,937 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:21:30,937 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:21:30,937 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:21:30,938 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:21:30,938 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:21:30,939 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:21:30,939 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:21:30,940 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:21:30,940 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:21:30,940 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:21:30,941 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:21:30,941 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:21:30,941 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:21:30,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:21:30,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:21:30,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:21:30,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:21:30,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:21:30,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:21:30,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:21:30,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:21:30,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:21:30,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:21:30,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:21:30,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:21:30,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:21:30,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:21:30,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:21:30,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:21:30,947 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:21:30,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:21:30,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:21:30,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:21:30,948 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_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 [2022-11-22 01:21:31,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:21:31,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:21:31,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:21:31,323 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:21:31,323 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:21:31,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:21:34,419 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:21:34,831 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:21:34,831 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:21:34,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/8ebbd7b72/f9a3272d7a2b42b6b86bbc8b43027e8d/FLAG0dc8a5c3a [2022-11-22 01:21:34,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/8ebbd7b72/f9a3272d7a2b42b6b86bbc8b43027e8d [2022-11-22 01:21:34,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:21:34,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:21:34,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:21:34,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:21:34,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:21:34,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:21:34" (1/1) ... [2022-11-22 01:21:34,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5229a938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:34, skipping insertion in model container [2022-11-22 01:21:34,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:21:34" (1/1) ... [2022-11-22 01:21:34,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:21:34,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:21:35,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-22 01:21:35,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:21:35,627 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:21:35,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-22 01:21:35,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:21:35,897 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:21:35,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35 WrapperNode [2022-11-22 01:21:35,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:21:35,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:21:35,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:21:35,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:21:35,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:35,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,113 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2840 [2022-11-22 01:21:36,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:21:36,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:21:36,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:21:36,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:21:36,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:21:36,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:21:36,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:21:36,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:21:36,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (1/1) ... [2022-11-22 01:21:36,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:21:36,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:21:36,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:21:36,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:21:36,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:21:36,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:21:37,097 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:21:37,099 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:32:21,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:32:21,949 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:32:21,963 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:32:21,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:21 BoogieIcfgContainer [2022-11-22 01:32:21,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:32:21,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:32:21,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:32:21,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:32:21,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:21:34" (1/3) ... [2022-11-22 01:32:21,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b54e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:21, skipping insertion in model container [2022-11-22 01:32:21,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:21:35" (2/3) ... [2022-11-22 01:32:21,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435b54e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:21, skipping insertion in model container [2022-11-22 01:32:21,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:21" (3/3) ... [2022-11-22 01:32:21,990 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:32:22,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:32:22,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:32:22,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:32:22,093 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;@4ff2fda3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:32:22,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:32:22,098 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) [2022-11-22 01:32:22,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:32:22,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:22,120 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:32:22,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:32:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-22 01:32:22,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:22,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358896568] [2022-11-22 01:32:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:32:22,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:32:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:32:22,814 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:32:22,816 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:32:22,818 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:32:22,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:32:22,825 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:32:22,831 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:32:22,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:32:22,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:32:22 BoogieIcfgContainer [2022-11-22 01:32:22,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:32:22,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:32:22,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:32:22,916 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:32:22,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:21" (3/4) ... [2022-11-22 01:32:22,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:32:22,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:32:22,924 INFO L158 Benchmark]: Toolchain (without parser) took 648048.09ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 132.8MB in the beginning and 848.6MB in the end (delta: -715.8MB). Peak memory consumption was 198.2MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,925 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:32:22,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1019.36ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 112.1MB in the end (delta: 20.7MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 215.20ms. Allocated memory is still 182.5MB. Free memory was 112.1MB in the beginning and 81.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,929 INFO L158 Benchmark]: Boogie Preprocessor took 151.19ms. Allocated memory is still 182.5MB. Free memory was 81.7MB in the beginning and 68.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,935 INFO L158 Benchmark]: RCFGBuilder took 645700.25ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 68.1MB in the beginning and 902.1MB in the end (delta: -834.0MB). Peak memory consumption was 625.6MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,937 INFO L158 Benchmark]: TraceAbstraction took 943.89ms. Allocated memory is still 1.1GB. Free memory was 902.1MB in the beginning and 848.6MB in the end (delta: 53.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-22 01:32:22,938 INFO L158 Benchmark]: Witness Printer took 6.55ms. Allocated memory is still 1.1GB. Free memory is still 848.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:32:22,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1019.36ms. Allocated memory is still 182.5MB. Free memory was 132.8MB in the beginning and 112.1MB in the end (delta: 20.7MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 215.20ms. Allocated memory is still 182.5MB. Free memory was 112.1MB in the beginning and 81.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.19ms. Allocated memory is still 182.5MB. Free memory was 81.7MB in the beginning and 68.1MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 645700.25ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 912.3MB). Free memory was 68.1MB in the beginning and 902.1MB in the end (delta: -834.0MB). Peak memory consumption was 625.6MB. Max. memory is 16.1GB. * TraceAbstraction took 943.89ms. Allocated memory is still 1.1GB. Free memory was 902.1MB in the beginning and 848.6MB in the end (delta: 53.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Witness Printer took 6.55ms. Allocated memory is still 1.1GB. Free memory is still 848.6MB. 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 281, overapproximation of bitwiseAnd at line 260, overapproximation of bitwiseXor at line 275. 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_108 = 0; [L39] const SORT_2 var_123 = 15; [L40] const SORT_2 var_124 = 1; [L41] const SORT_2 var_129 = 100; [L42] const SORT_2 var_130 = 0; [L43] const SORT_2 var_131 = 16; [L44] const SORT_4 var_136 = 0; [L45] const SORT_3 var_137 = 0; [L46] const SORT_4 var_139 = 1; [L47] const SORT_4 var_144 = 2; [L48] const SORT_4 var_146 = 3; [L49] const SORT_4 var_148 = 4; [L50] const SORT_4 var_150 = 5; [L51] const SORT_4 var_152 = 6; [L52] const SORT_4 var_154 = 7; [L53] const SORT_4 var_156 = 8; [L54] const SORT_4 var_158 = 9; [L55] const SORT_4 var_160 = 10; [L56] const SORT_4 var_162 = 11; [L57] const SORT_4 var_164 = 12; [L58] const SORT_4 var_166 = 13; [L59] const SORT_4 var_168 = 14; [L60] const SORT_2 var_248 = 14; [L61] const SORT_2 var_249 = 2; [L62] const SORT_2 var_263 = 13; [L63] const SORT_2 var_264 = 3; [L64] const SORT_2 var_278 = 12; [L65] const SORT_2 var_279 = 4; [L66] const SORT_2 var_293 = 11; [L67] const SORT_2 var_294 = 5; [L68] const SORT_2 var_308 = 10; [L69] const SORT_2 var_309 = 6; [L70] const SORT_2 var_323 = 9; [L71] const SORT_2 var_324 = 7; [L72] const SORT_2 var_338 = 8; [L73] const SORT_4 var_433 = 15; [L75] SORT_1 input_134; [L76] SORT_1 input_185; [L77] SORT_1 input_224; [L78] SORT_1 input_226; [L79] SORT_1 input_454; [L80] SORT_1 input_456; [L82] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L86] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L87] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L88] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L89] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_2 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L112] SORT_2 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L113] SORT_2 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L114] SORT_2 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L115] SORT_2 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L116] SORT_2 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L117] SORT_2 state_76 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L118] SORT_2 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L119] SORT_2 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L120] SORT_2 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L121] SORT_2 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L122] SORT_2 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L123] SORT_2 state_88 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L124] SORT_2 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L125] SORT_2 state_92 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L126] SORT_2 state_94 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L127] SORT_2 state_96 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L128] SORT_2 state_98 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L129] SORT_2 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L130] SORT_2 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L131] SORT_2 state_104 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L132] SORT_2 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L133] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_119 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_2 init_7_arg_1 = var_5; [L142] state_6 = init_7_arg_1 [L143] SORT_2 init_9_arg_1 = var_5; [L144] state_8 = init_9_arg_1 [L145] SORT_2 init_11_arg_1 = var_5; [L146] state_10 = init_11_arg_1 [L147] SORT_2 init_13_arg_1 = var_5; [L148] state_12 = init_13_arg_1 [L149] SORT_2 init_15_arg_1 = var_5; [L150] state_14 = init_15_arg_1 [L151] SORT_2 init_17_arg_1 = var_5; [L152] state_16 = init_17_arg_1 [L153] SORT_2 init_19_arg_1 = var_5; [L154] state_18 = init_19_arg_1 [L155] SORT_2 init_21_arg_1 = var_5; [L156] state_20 = init_21_arg_1 [L157] SORT_2 init_23_arg_1 = var_5; [L158] state_22 = init_23_arg_1 [L159] SORT_2 init_25_arg_1 = var_5; [L160] state_24 = init_25_arg_1 [L161] SORT_2 init_27_arg_1 = var_5; [L162] state_26 = init_27_arg_1 [L163] SORT_2 init_29_arg_1 = var_5; [L164] state_28 = init_29_arg_1 [L165] SORT_2 init_31_arg_1 = var_5; [L166] state_30 = init_31_arg_1 [L167] SORT_2 init_33_arg_1 = var_5; [L168] state_32 = init_33_arg_1 [L169] SORT_2 init_35_arg_1 = var_5; [L170] state_34 = init_35_arg_1 [L171] SORT_2 init_37_arg_1 = var_5; [L172] state_36 = init_37_arg_1 [L173] SORT_2 init_39_arg_1 = var_5; [L174] state_38 = init_39_arg_1 [L175] SORT_2 init_41_arg_1 = var_5; [L176] state_40 = init_41_arg_1 [L177] SORT_2 init_43_arg_1 = var_5; [L178] state_42 = init_43_arg_1 [L179] SORT_2 init_45_arg_1 = var_5; [L180] state_44 = init_45_arg_1 [L181] SORT_2 init_47_arg_1 = var_5; [L182] state_46 = init_47_arg_1 [L183] SORT_2 init_49_arg_1 = var_5; [L184] state_48 = init_49_arg_1 [L185] SORT_2 init_51_arg_1 = var_5; [L186] state_50 = init_51_arg_1 [L187] SORT_2 init_53_arg_1 = var_5; [L188] state_52 = init_53_arg_1 [L189] SORT_2 init_55_arg_1 = var_5; [L190] state_54 = init_55_arg_1 [L191] SORT_2 init_57_arg_1 = var_5; [L192] state_56 = init_57_arg_1 [L193] SORT_2 init_59_arg_1 = var_5; [L194] state_58 = init_59_arg_1 [L195] SORT_2 init_61_arg_1 = var_5; [L196] state_60 = init_61_arg_1 [L197] SORT_2 init_63_arg_1 = var_5; [L198] state_62 = init_63_arg_1 [L199] SORT_2 init_65_arg_1 = var_5; [L200] state_64 = init_65_arg_1 [L201] SORT_2 init_67_arg_1 = var_5; [L202] state_66 = init_67_arg_1 [L203] SORT_2 init_69_arg_1 = var_5; [L204] state_68 = init_69_arg_1 [L205] SORT_2 init_71_arg_1 = var_5; [L206] state_70 = init_71_arg_1 [L207] SORT_2 init_73_arg_1 = var_5; [L208] state_72 = init_73_arg_1 [L209] SORT_2 init_75_arg_1 = var_5; [L210] state_74 = init_75_arg_1 [L211] SORT_2 init_77_arg_1 = var_5; [L212] state_76 = init_77_arg_1 [L213] SORT_2 init_79_arg_1 = var_5; [L214] state_78 = init_79_arg_1 [L215] SORT_2 init_81_arg_1 = var_5; [L216] state_80 = init_81_arg_1 [L217] SORT_2 init_83_arg_1 = var_5; [L218] state_82 = init_83_arg_1 [L219] SORT_2 init_85_arg_1 = var_5; [L220] state_84 = init_85_arg_1 [L221] SORT_2 init_87_arg_1 = var_5; [L222] state_86 = init_87_arg_1 [L223] SORT_2 init_89_arg_1 = var_5; [L224] state_88 = init_89_arg_1 [L225] SORT_2 init_91_arg_1 = var_5; [L226] state_90 = init_91_arg_1 [L227] SORT_2 init_93_arg_1 = var_5; [L228] state_92 = init_93_arg_1 [L229] SORT_2 init_95_arg_1 = var_5; [L230] state_94 = init_95_arg_1 [L231] SORT_2 init_97_arg_1 = var_5; [L232] state_96 = init_97_arg_1 [L233] SORT_2 init_99_arg_1 = var_5; [L234] state_98 = init_99_arg_1 [L235] SORT_2 init_101_arg_1 = var_5; [L236] state_100 = init_101_arg_1 [L237] SORT_2 init_103_arg_1 = var_5; [L238] state_102 = init_103_arg_1 [L239] SORT_2 init_105_arg_1 = var_5; [L240] state_104 = init_105_arg_1 [L241] SORT_2 init_107_arg_1 = var_5; [L242] state_106 = init_107_arg_1 [L243] SORT_1 init_110_arg_1 = var_108; [L244] state_109 = init_110_arg_1 [L245] SORT_1 init_112_arg_1 = var_108; [L246] state_111 = init_112_arg_1 [L247] SORT_1 init_114_arg_1 = var_108; [L248] state_113 = init_114_arg_1 [L249] SORT_1 init_116_arg_1 = var_108; [L250] state_115 = init_116_arg_1 [L251] SORT_1 init_118_arg_1 = var_108; [L252] state_117 = init_118_arg_1 [L253] SORT_1 init_120_arg_1 = var_108; [L254] state_119 = init_120_arg_1 [L255] SORT_1 init_122_arg_1 = var_108; [L256] state_121 = init_122_arg_1 VAL [init_101_arg_1=0, init_103_arg_1=0, init_105_arg_1=0, init_107_arg_1=0, init_110_arg_1=0, init_112_arg_1=0, init_114_arg_1=0, init_116_arg_1=0, init_118_arg_1=0, init_11_arg_1=0, init_120_arg_1=0, init_122_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_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_77_arg_1=0, init_79_arg_1=0, init_7_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_95_arg_1=0, init_97_arg_1=0, init_99_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_100=0, state_102=0, state_104=0, state_106=0, state_109=0, state_111=0, state_113=0, state_115=0, state_117=0, state_119=0, state_12=0, state_121=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=0, state_60=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=0, state_74=0, state_76=0, state_78=0, state_8=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_90=0, state_92=0, state_94=0, state_96=0, state_98=0, var_108=0, var_123=15, var_124=1, var_129=100, var_130=0, var_131=16, var_136=0, var_137=0, var_139=1, var_144=2, var_146=3, var_148=4, var_150=5, var_152=6, var_154=7, var_156=8, var_158=9, var_160=10, var_162=11, var_164=12, var_166=13, var_168=14, var_248=14, var_249=2, var_263=13, var_264=3, var_278=12, var_279=4, var_293=11, var_294=5, var_308=10, var_309=6, var_323=9, var_324=7, var_338=8, var_433=15, var_5=0] [L259] input_134 = __VERIFIER_nondet_uchar() [L260] input_134 = input_134 & mask_SORT_1 [L261] input_185 = __VERIFIER_nondet_uchar() [L262] input_185 = input_185 & mask_SORT_1 [L263] input_224 = __VERIFIER_nondet_uchar() [L264] input_224 = input_224 & mask_SORT_1 [L265] input_226 = __VERIFIER_nondet_uchar() [L266] input_226 = input_226 & mask_SORT_1 [L267] input_454 = __VERIFIER_nondet_uchar() [L268] input_454 = input_454 & mask_SORT_1 [L269] input_456 = __VERIFIER_nondet_uchar() [L270] input_456 = input_456 & mask_SORT_1 [L273] SORT_2 var_125_arg_0 = var_124; [L274] SORT_2 var_125_arg_1 = state_106; [L275] SORT_2 var_125 = var_125_arg_0 ^ var_125_arg_1; [L276] var_125 = var_125 & mask_SORT_2 [L277] SORT_2 var_126_arg_0 = var_123; [L278] SORT_2 var_126_arg_1 = var_125; [L279] SORT_1 var_126 = var_126_arg_0 == var_126_arg_1; [L280] SORT_1 var_127_arg_0 = var_126; [L281] SORT_1 var_127_arg_1 = ~state_121; [L282] var_127_arg_1 = var_127_arg_1 & mask_SORT_1 [L283] SORT_1 var_127 = var_127_arg_0 & var_127_arg_1; [L284] var_127 = var_127 & mask_SORT_1 [L285] SORT_1 bad_128_arg_0 = var_127; [L286] CALL __VERIFIER_assert(!(bad_128_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s 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 [2022-11-22 01:32:22,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba --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 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 --- 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-b5237d8 [2022-11-22 01:32:25,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:32:25,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:32:25,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:32:25,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:32:25,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:32:25,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:32:25,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:32:25,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:32:25,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:32:25,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:32:25,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:32:25,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:32:25,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:32:25,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:32:25,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:32:25,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:32:25,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:32:25,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:32:25,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:32:25,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:32:25,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:32:25,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:32:25,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:32:25,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:32:25,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:32:25,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:32:25,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:32:25,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:32:25,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:32:25,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:32:25,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:32:25,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:32:25,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:32:25,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:32:25,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:32:25,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:32:25,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:32:25,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:32:25,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:32:25,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:32:25,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:32:25,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:32:25,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:32:25,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:32:25,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:32:25,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:32:25,762 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:32:25,762 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:32:25,763 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:32:25,763 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:32:25,763 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:32:25,764 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:32:25,765 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:32:25,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:32:25,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:32:25,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:32:25,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:32:25,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:32:25,766 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:32:25,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:32:25,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:32:25,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:32:25,767 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:32:25,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:32:25,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:32:25,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:32:25,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:32:25,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:32:25,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:32:25,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:32:25,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:32:25,769 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:32:25,770 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:32:25,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:32:25,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:32:25,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:32:25,771 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_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc0b31711bfc38df187f78180a845f60ef5b637a02cb40e580c2ade20e6b540 [2022-11-22 01:32:26,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:32:26,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:32:26,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:32:26,225 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:32:26,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:32:26,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:32:29,751 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:32:30,245 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:32:30,246 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:32:30,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/bebd53fea/5a0d0d6ce6ec4f048c227826dd46a6c5/FLAGa60ded799 [2022-11-22 01:32:30,298 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/data/bebd53fea/5a0d0d6ce6ec4f048c227826dd46a6c5 [2022-11-22 01:32:30,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:32:30,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:32:30,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:32:30,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:32:30,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:32:30,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:32:30" (1/1) ... [2022-11-22 01:32:30,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efc9bc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:30, skipping insertion in model container [2022-11-22 01:32:30,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:32:30" (1/1) ... [2022-11-22 01:32:30,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:32:30,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:32:30,755 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-22 01:32:31,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:32:31,438 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:32:31,451 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.hanoi.3.prop1-func-interl.c[1014,1027] [2022-11-22 01:32:31,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:32:31,680 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:32:31,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31 WrapperNode [2022-11-22 01:32:31,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:32:31,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:32:31,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:32:31,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:32:31,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:31,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:31,996 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2840 [2022-11-22 01:32:31,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:32:31,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:32:31,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:32:31,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:32:32,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:32:32,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:32:32,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:32:32,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:32:32,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (1/1) ... [2022-11-22 01:32:32,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:32:32,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:32:32,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:32:32,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:32:32,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:32:32,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:32:33,103 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:32:33,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:32:40,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:32:40,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:32:40,434 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:32:40,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:40 BoogieIcfgContainer [2022-11-22 01:32:40,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:32:40,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:32:40,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:32:40,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:32:40,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:32:30" (1/3) ... [2022-11-22 01:32:40,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a70fb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:40, skipping insertion in model container [2022-11-22 01:32:40,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:31" (2/3) ... [2022-11-22 01:32:40,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a70fb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:40, skipping insertion in model container [2022-11-22 01:32:40,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:40" (3/3) ... [2022-11-22 01:32:40,450 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.hanoi.3.prop1-func-interl.c [2022-11-22 01:32:40,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:32:40,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:32:40,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:32:40,565 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;@77be629d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:32:40,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:32:40,571 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) [2022-11-22 01:32:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:32:40,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:40,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:32:40,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:32:40,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 01:32:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:32:40,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015393692] [2022-11-22 01:32:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:40,605 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 [2022-11-22 01:32:40,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:32:40,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:32:40,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:32:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:41,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 01:32:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:41,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:32:41,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:32:41,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015393692] [2022-11-22 01:32:41,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015393692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:41,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:41,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:32:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230765235] [2022-11-22 01:32:41,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:41,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:32:41,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:32:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:32:41,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:32:41,754 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) [2022-11-22 01:32:42,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:42,531 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 01:32:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:32:42,534 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 [2022-11-22 01:32:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:42,543 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:32:42,544 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:32:42,550 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 [2022-11-22 01:32:42,557 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:42,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:32:42,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:32:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 01:32:42,598 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) [2022-11-22 01:32:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 01:32:42,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 01:32:42,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:42,602 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 01:32:42,602 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) [2022-11-22 01:32:42,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 01:32:42,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:32:42,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:42,603 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:32:42,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:32:42,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:32:42,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:32:42,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:42,821 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 01:32:42,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:32:42,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155119050] [2022-11-22 01:32:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:42,830 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 [2022-11-22 01:32:42,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:32:42,832 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:32:42,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:32:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:44,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-22 01:32:44,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:32:45,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:45,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:32:46,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:46,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:32:46,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155119050] [2022-11-22 01:32:46,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155119050] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:32:46,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [655631156] [2022-11-22 01:32:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:46,716 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:32:46,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:32:46,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:32:46,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c49a1bd-483b-4586-b40d-34ba5ec559f8/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 01:32:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:50,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 257 conjunts are in the unsatisfiable core [2022-11-22 01:32:50,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:45,768 WARN L233 SmtUtils]: Spent 1.81m on a formula simplification. DAG size of input: 187 DAG size of output: 173 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:34:46,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:46,036 INFO L328 TraceCheckSpWp]: Computing backward predicates...