./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 --- 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 02:12:35,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:35,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:35,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:35,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:35,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:35,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:35,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:35,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:35,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:35,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:35,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:35,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:35,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:35,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:35,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:35,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:35,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:36,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:36,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:36,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:36,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:36,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:36,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:36,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:36,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:36,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:36,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:36,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:36,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:36,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:36,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:36,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:36,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:36,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:36,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:36,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:36,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:36,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:36,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:36,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:36,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:12:36,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:36,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:36,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:36,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:36,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:36,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:36,057 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:36,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:36,058 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:36,059 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:12:36,059 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:36,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:36,060 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:12:36,060 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:12:36,060 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:36,061 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:12:36,061 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:12:36,061 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:12:36,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:36,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:12:36,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:36,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:36,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:36,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:36,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:36,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:36,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:36,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:36,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:36,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:36,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:36,067 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:12:36,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:36,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:36,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:12:36,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:12:36,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:36,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:36,069 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 [2022-11-22 02:12:36,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:36,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:36,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:36,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:36,427 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:36,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-22 02:12:39,640 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:39,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:39,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-22 02:12:39,987 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/35ee057b6/3bc3d39639d4442299abc31494f424bd/FLAGcd114a612 [2022-11-22 02:12:40,004 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/35ee057b6/3bc3d39639d4442299abc31494f424bd [2022-11-22 02:12:40,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:40,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:40,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:40,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:40,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:40,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d87606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40, skipping insertion in model container [2022-11-22 02:12:40,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:40,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:40,216 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-22 02:12:40,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:40,343 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:40,368 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-22 02:12:40,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:40,460 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:40,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40 WrapperNode [2022-11-22 02:12:40,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:40,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:40,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:40,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:40,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,547 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 392 [2022-11-22 02:12:40,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:40,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:40,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:40,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:40,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:40,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:40,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:40,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:40,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (1/1) ... [2022-11-22 02:12:40,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:40,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:40,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:40,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:40,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:40,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:40,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:40,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:42,856 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:12:42,904 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:12:42,904 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:12:42,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:42 BoogieIcfgContainer [2022-11-22 02:12:42,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:12:42,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:12:42,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:12:42,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:12:42,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:40" (1/3) ... [2022-11-22 02:12:42,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312499c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:42, skipping insertion in model container [2022-11-22 02:12:42,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:40" (2/3) ... [2022-11-22 02:12:42,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7312499c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:42, skipping insertion in model container [2022-11-22 02:12:42,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:42" (3/3) ... [2022-11-22 02:12:42,923 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c [2022-11-22 02:12:42,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:12:42,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:12:43,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:12:43,026 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;@4e7078f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:12:43,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:12:43,032 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 02:12:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:12:43,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:43,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:12:43,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:43,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-22 02:12:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:43,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322097913] [2022-11-22 02:12:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:12:43,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:12:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:12:43,675 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:12:43,677 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:12:43,679 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:12:43,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:12:43,686 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:12:43,691 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:12:43,735 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 02:12:43,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:12:43 BoogieIcfgContainer [2022-11-22 02:12:43,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:12:43,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:12:43,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:12:43,774 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:12:43,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:42" (3/4) ... [2022-11-22 02:12:43,781 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:12:43,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:12:43,787 INFO L158 Benchmark]: Toolchain (without parser) took 3777.62ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 114.3MB in the beginning and 141.8MB in the end (delta: -27.5MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,788 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:12:43,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.62ms. Allocated memory is still 144.7MB. Free memory was 114.0MB in the beginning and 95.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.83ms. Allocated memory is still 144.7MB. Free memory was 95.5MB in the beginning and 91.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,791 INFO L158 Benchmark]: Boogie Preprocessor took 48.85ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 88.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,792 INFO L158 Benchmark]: RCFGBuilder took 2312.79ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.6MB in the beginning and 95.9MB in the end (delta: -7.4MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,794 INFO L158 Benchmark]: TraceAbstraction took 844.27ms. Allocated memory is still 174.1MB. Free memory was 94.9MB in the beginning and 63.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,796 INFO L158 Benchmark]: Witness Printer took 12.34ms. Allocated memory is still 174.1MB. Free memory was 63.4MB in the beginning and 141.8MB in the end (delta: -78.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-11-22 02:12:43,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.62ms. Allocated memory is still 144.7MB. Free memory was 114.0MB in the beginning and 95.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.83ms. Allocated memory is still 144.7MB. Free memory was 95.5MB in the beginning and 91.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.85ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 88.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2312.79ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 88.6MB in the beginning and 95.9MB in the end (delta: -7.4MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * TraceAbstraction took 844.27ms. Allocated memory is still 174.1MB. Free memory was 94.9MB in the beginning and 63.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 12.34ms. Allocated memory is still 174.1MB. Free memory was 63.4MB in the beginning and 141.8MB in the end (delta: -78.4MB). Peak memory consumption was 2.4MB. 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 123, overapproximation of bitwiseAnd at line 107. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 32); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L31] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 3); [L32] const SORT_43 msb_SORT_43 = (SORT_43)1 << (3 - 1); [L34] const SORT_97 mask_SORT_97 = (SORT_97)-1 >> (sizeof(SORT_97) * 8 - 6); [L35] const SORT_97 msb_SORT_97 = (SORT_97)1 << (6 - 1); [L37] const SORT_135 mask_SORT_135 = (SORT_135)-1 >> (sizeof(SORT_135) * 8 - 2); [L38] const SORT_135 msb_SORT_135 = (SORT_135)1 << (2 - 1); [L40] const SORT_1 var_5 = 0; [L41] const SORT_1 var_13 = 1; [L42] const SORT_43 var_75 = 0; [L43] const SORT_3 var_94 = 0; [L44] const SORT_97 var_99 = 0; [L45] const SORT_43 var_113 = 2; [L46] const SORT_43 var_114 = 1; [L47] const SORT_97 var_115 = 4; [L48] const SORT_97 var_118 = 2; [L49] const SORT_97 var_122 = 8; [L50] const SORT_43 var_125 = 4; [L51] const SORT_97 var_126 = 43; [L52] const SORT_97 var_129 = 35; [L53] const SORT_97 var_133 = 5; [L55] SORT_1 input_2; [L56] SORT_3 input_4; [L57] SORT_1 input_55; [L58] SORT_1 input_80; [L59] SORT_43 input_88; [L60] SORT_43 input_89; [L61] SORT_43 input_90; [L62] SORT_43 input_91; [L63] SORT_43 input_92; [L64] SORT_43 input_93; [L65] SORT_43 input_103; [L66] SORT_43 input_109; [L67] SORT_43 input_141; [L68] SORT_43 input_144; [L70] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] SORT_1 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_43 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L79] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_43 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L81] SORT_3 state_47 = __VERIFIER_nondet_uint() & mask_SORT_3; [L82] SORT_43 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_43; [L83] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 init_7_arg_1 = var_5; [L86] state_6 = init_7_arg_1 [L87] SORT_1 init_10_arg_1 = var_5; [L88] state_9 = init_10_arg_1 [L89] SORT_1 init_15_arg_1 = var_13; [L90] state_14 = init_15_arg_1 [L91] SORT_1 init_19_arg_1 = var_5; [L92] state_18 = init_19_arg_1 [L93] SORT_1 init_23_arg_1 = var_5; [L94] state_22 = init_23_arg_1 [L95] SORT_1 init_26_arg_1 = var_5; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_30_arg_1 = var_5; [L98] state_29 = init_30_arg_1 [L99] SORT_1 init_34_arg_1 = var_5; [L100] state_33 = init_34_arg_1 [L101] SORT_1 init_53_arg_1 = var_5; [L102] state_52 = init_53_arg_1 VAL [init_10_arg_1=0, init_15_arg_1=1, init_19_arg_1=0, init_23_arg_1=0, init_26_arg_1=0, init_30_arg_1=0, init_34_arg_1=0, init_53_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_135=3, mask_SORT_3=4294967295, mask_SORT_43=7, mask_SORT_97=63, msb_SORT_1=1, msb_SORT_135=2, msb_SORT_3=2147483648, msb_SORT_43=4, msb_SORT_97=32, state_14=1, state_18=0, state_22=0, state_25=0, state_29=0, state_33=0, state_44=0, state_45=0, state_46=0, state_47=0, state_51=0, state_52=0, state_6=0, state_9=0, var_113=2, var_114=1, var_115=4, var_118=2, var_122=8, var_125=4, var_126=43, var_129=35, var_13=1, var_133=5, var_5=0, var_75=0, var_94=0, var_99=0] [L105] input_2 = __VERIFIER_nondet_uchar() [L106] input_4 = __VERIFIER_nondet_uint() [L107] input_4 = input_4 & mask_SORT_3 [L108] input_55 = __VERIFIER_nondet_uchar() [L109] input_80 = __VERIFIER_nondet_uchar() [L110] input_88 = __VERIFIER_nondet_uchar() [L111] input_89 = __VERIFIER_nondet_uchar() [L112] input_90 = __VERIFIER_nondet_uchar() [L113] input_91 = __VERIFIER_nondet_uchar() [L114] input_92 = __VERIFIER_nondet_uchar() [L115] input_93 = __VERIFIER_nondet_uchar() [L116] input_103 = __VERIFIER_nondet_uchar() [L117] input_109 = __VERIFIER_nondet_uchar() [L118] input_141 = __VERIFIER_nondet_uchar() [L119] input_144 = __VERIFIER_nondet_uchar() [L122] SORT_1 var_8_arg_0 = state_6; [L123] SORT_1 var_8 = ~var_8_arg_0; [L124] SORT_1 var_11_arg_0 = state_9; [L125] SORT_1 var_11 = ~var_11_arg_0; [L126] SORT_1 var_12_arg_0 = var_8; [L127] SORT_1 var_12_arg_1 = var_11; [L128] SORT_1 var_12 = var_12_arg_0 & var_12_arg_1; [L129] SORT_1 var_16_arg_0 = state_14; [L130] SORT_1 var_16 = ~var_16_arg_0; [L131] SORT_1 var_17_arg_0 = var_12; [L132] SORT_1 var_17_arg_1 = var_16; [L133] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L134] SORT_1 var_20_arg_0 = state_18; [L135] SORT_1 var_20 = ~var_20_arg_0; [L136] SORT_1 var_21_arg_0 = var_17; [L137] SORT_1 var_21_arg_1 = var_20; [L138] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L139] SORT_1 var_24_arg_0 = var_21; [L140] SORT_1 var_24_arg_1 = state_22; [L141] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L142] SORT_1 var_27_arg_0 = state_25; [L143] SORT_1 var_27 = ~var_27_arg_0; [L144] SORT_1 var_28_arg_0 = var_24; [L145] SORT_1 var_28_arg_1 = var_27; [L146] SORT_1 var_28 = var_28_arg_0 & var_28_arg_1; [L147] SORT_1 var_31_arg_0 = state_29; [L148] SORT_1 var_31 = ~var_31_arg_0; [L149] SORT_1 var_32_arg_0 = var_28; [L150] SORT_1 var_32_arg_1 = var_31; [L151] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; [L152] SORT_1 var_35_arg_0 = state_33; [L153] SORT_1 var_35 = ~var_35_arg_0; [L154] SORT_1 var_36_arg_0 = var_32; [L155] SORT_1 var_36_arg_1 = var_35; [L156] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L157] SORT_1 var_37_arg_0 = var_36; [L158] SORT_1 var_37 = ~var_37_arg_0; [L159] SORT_1 var_40_arg_0 = var_37; [L160] SORT_1 var_40 = ~var_40_arg_0; [L161] SORT_1 var_41_arg_0 = var_13; [L162] SORT_1 var_41_arg_1 = var_40; [L163] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L164] var_41 = var_41 & mask_SORT_1 [L165] SORT_1 bad_42_arg_0 = var_41; [L166] CALL __VERIFIER_assert(!(bad_42_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: 0.7s, 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 02:12:43,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 --- 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 02:12:46,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:46,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:46,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:46,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:46,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:46,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:46,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:46,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:46,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:46,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:46,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:46,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:46,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:46,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:46,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:46,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:46,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:46,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:46,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:46,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:46,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:46,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:46,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:46,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:46,650 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:46,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:46,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:46,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:46,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:46,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:46,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:46,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:46,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:46,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:46,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:46,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:46,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:46,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:46,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:46,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:46,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 02:12:46,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:46,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:46,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:46,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:46,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:46,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:46,717 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:46,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:46,718 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:46,718 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:46,719 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:46,719 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:46,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:46,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:46,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:46,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:46,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:46,721 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:12:46,722 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:12:46,722 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:12:46,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:46,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:46,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:46,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:46,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:12:46,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:46,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:46,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:46,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:46,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:46,726 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:12:46,726 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:46,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:46,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:46,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:12:46,727 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b6b79cb1fa4accf5125a3420115b0b09b98cba7b1efdd830c177a3c1ffb8598 [2022-11-22 02:12:47,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:47,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:47,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:47,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:47,214 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:47,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-22 02:12:50,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:50,978 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:50,978 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c [2022-11-22 02:12:50,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/e019b3abb/d3a5048e6e2c45619e21410ddcd23884/FLAG379548b64 [2022-11-22 02:12:51,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/data/e019b3abb/d3a5048e6e2c45619e21410ddcd23884 [2022-11-22 02:12:51,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:51,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:51,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:51,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:51,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:51,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8bbe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51, skipping insertion in model container [2022-11-22 02:12:51,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:51,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:51,289 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-22 02:12:51,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:51,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:51,479 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_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.zaher.c[1107,1120] [2022-11-22 02:12:51,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:51,590 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:51,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51 WrapperNode [2022-11-22 02:12:51,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:51,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:51,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:51,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:51,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,687 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 392 [2022-11-22 02:12:51,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:51,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:51,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:51,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:51,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:51,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:51,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:51,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:51,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (1/1) ... [2022-11-22 02:12:51,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:51,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:51,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:51,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:51,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:51,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:52,004 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:52,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:52,569 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:12:52,587 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:12:52,587 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:12:52,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:52 BoogieIcfgContainer [2022-11-22 02:12:52,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:12:52,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:12:52,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:12:52,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:12:52,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:51" (1/3) ... [2022-11-22 02:12:52,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0547bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:52, skipping insertion in model container [2022-11-22 02:12:52,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:51" (2/3) ... [2022-11-22 02:12:52,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0547bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:52, skipping insertion in model container [2022-11-22 02:12:52,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:52" (3/3) ... [2022-11-22 02:12:52,602 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.zaher.c [2022-11-22 02:12:52,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:12:52,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:12:52,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:12:52,704 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;@755a4678, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:12:52,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:12:52,709 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 02:12:52,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:12:52,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:52,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:12:52,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:52,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:52,729 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 02:12:52,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:12:52,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449981361] [2022-11-22 02:12:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:52,746 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 02:12:52,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:12:52,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:52,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:52,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-22 02:12:52,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:53,141 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 02:12:53,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:53,142 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:12:53,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449981361] [2022-11-22 02:12:53,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449981361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:53,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:53,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:12:53,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060762305] [2022-11-22 02:12:53,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:53,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:12:53,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:12:53,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:12:53,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:12:53,198 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 02:12:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:53,290 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 02:12:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:12:53,293 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 02:12:53,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:53,302 INFO L225 Difference]: With dead ends: 20 [2022-11-22 02:12:53,302 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:12:53,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:12:53,310 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:53,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:12:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:12:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 02:12:53,349 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 02:12:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 02:12:53,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 02:12:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:53,351 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 02:12:53,352 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 02:12:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 02:12:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:12:53,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:53,352 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:12:53,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:53,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:53,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:53,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:53,554 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 02:12:53,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:12:53,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006914031] [2022-11-22 02:12:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:53,557 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 02:12:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:12:53,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:53,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 02:12:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:53,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-22 02:12:53,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:54,036 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 02:12:54,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:54,293 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 02:12:54,294 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:12:54,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006914031] [2022-11-22 02:12:54,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006914031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:54,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [481710581] [2022-11-22 02:12:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:54,301 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:54,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:12:54,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:12:54,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 02:12:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:54,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-22 02:12:54,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:54,827 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 02:12:54,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:54,939 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 02:12:54,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [481710581] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:54,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341027390] [2022-11-22 02:12:54,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:54,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:54,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:54,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:54,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:12:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:55,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 02:12:55,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:55,323 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 02:12:55,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:55,532 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 02:12:55,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341027390] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:55,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:12:55,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-22 02:12:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597133097] [2022-11-22 02:12:55,540 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:12:55,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:12:55,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:12:55,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:12:55,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:12:55,543 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:12:55,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:55,835 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2022-11-22 02:12:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:12:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:12:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:55,837 INFO L225 Difference]: With dead ends: 10 [2022-11-22 02:12:55,838 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:12:55,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:12:55,840 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:55,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:12:55,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:12:55,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:12:55,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:12:55,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:12:55,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-22 02:12:55,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:55,842 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:12:55,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:12:55,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:12:55,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:12:55,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:12:55,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:56,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:56,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:56,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:56,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:12:56,526 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:12:56,526 INFO L895 garLoopResultBuilder]: At program point L391(lines 22 392) the Hoare annotation is: false [2022-11-22 02:12:56,527 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 02:12:56,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:12:56,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 02:12:56,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-22 02:12:56,527 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-22 02:12:56,528 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-22 02:12:56,528 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-22 02:12:56,529 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 103 390) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)))) (or (and .cse0 .cse1 (= (_ bv0 8) |ULTIMATE.start_main_~state_22~0#1|) (forall ((|v_ULTIMATE.start_main_~var_24_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_32_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_36_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_17_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_21_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_41_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_28_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_36_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_28_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~state_14~0#1|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_17_arg_0~0#1_3|))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_1~0#1_3|))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_41_arg_0~0#1_3|)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (_ bv0 8)))) (and .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= (bvadd (_ bv1 8) |ULTIMATE.start_main_~state_14~0#1|) (_ bv0 8))))) [2022-11-22 02:12:56,529 INFO L899 garLoopResultBuilder]: For program point L103-3(lines 103 390) no Hoare annotation was computed. [2022-11-22 02:12:56,533 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:12:56,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:12:56,546 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,548 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,548 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,549 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,549 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,550 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,550 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,560 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,560 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,561 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,561 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,562 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,562 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,563 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:12:56 BoogieIcfgContainer [2022-11-22 02:12:56,566 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:12:56,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:12:56,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:12:56,569 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:12:56,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:52" (3/4) ... [2022-11-22 02:12:56,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:12:56,595 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 02:12:56,596 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:12:56,597 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:12:56,719 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:12:56,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:12:56,720 INFO L158 Benchmark]: Toolchain (without parser) took 5693.71ms. Allocated memory was 77.6MB in the beginning and 142.6MB in the end (delta: 65.0MB). Free memory was 56.9MB in the beginning and 92.4MB in the end (delta: -35.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,721 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 55.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:12:56,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.46ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 38.1MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.88ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 34.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,722 INFO L158 Benchmark]: Boogie Preprocessor took 41.35ms. Allocated memory is still 77.6MB. Free memory was 34.5MB in the beginning and 32.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,722 INFO L158 Benchmark]: RCFGBuilder took 859.25ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 32.1MB in the beginning and 67.9MB in the end (delta: -35.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,723 INFO L158 Benchmark]: TraceAbstraction took 3976.30ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 67.4MB in the beginning and 98.7MB in the end (delta: -31.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,723 INFO L158 Benchmark]: Witness Printer took 150.92ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 92.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 02:12:56,727 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 55.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 564.46ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 38.1MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.88ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 34.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.35ms. Allocated memory is still 77.6MB. Free memory was 34.5MB in the beginning and 32.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 859.25ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 32.1MB in the beginning and 67.9MB in the end (delta: -35.8MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3976.30ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 67.4MB in the beginning and 98.7MB in the end (delta: -31.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 150.92ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 92.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 80 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 12 QuantifiedInterpolants, 809 SizeOfPredicates, 133 NumberOfNonLiveVariables, 1260 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant [2022-11-22 02:12:56,754 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,754 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,754 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,755 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,756 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,756 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,758 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_36_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,759 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,759 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,760 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_21_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,760 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_17_arg_0~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,760 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_32_arg_1~0#1_3,QUANTIFIED] [2022-11-22 02:12:56,761 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_41_arg_0~0#1_3,QUANTIFIED] Derived loop invariant: (((1bv8 == mask_SORT_1 && var_5 == 0bv8) && 0bv8 == state_22) && (forall v_ULTIMATE.start_main_~var_24_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_32_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_36_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_17_arg_0~0#1_3 : bv8, v_ULTIMATE.start_main_~var_21_arg_1~0#1_3 : bv8, v_ULTIMATE.start_main_~var_41_arg_0~0#1_3 : bv8, v_ULTIMATE.start_main_~var_28_arg_1~0#1_3 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_36_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_28_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_24_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_21_arg_1~0#1_3), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(state_14))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_17_arg_0~0#1_3))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_32_arg_1~0#1_3))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_41_arg_0~0#1_3))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) || (((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && ~bvadd128(1bv8, state_14) == 0bv8) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-22 02:12:56,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_683c5af9-401a-4c9a-9c97-70d8b03ed9ea/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 Writing output log to file Ultimate.log Result: TRUE