./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c --- 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-5e519f3 [2022-11-02 20:22:25,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:22:25,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:22:25,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:22:25,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:22:25,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:22:25,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:22:25,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:22:25,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:22:25,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:22:25,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:22:25,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:22:25,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:22:25,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:22:25,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:22:25,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:22:25,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:22:25,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:22:25,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:22:25,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:22:25,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:22:25,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:22:25,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:22:25,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:22:25,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:22:25,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:22:25,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:22:25,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:22:25,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:22:25,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:22:25,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:22:25,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:22:25,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:22:25,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:22:25,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:22:25,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:22:25,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:22:25,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:22:25,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:22:25,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:22:25,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:22:25,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:22:26,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:22:26,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:22:26,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:22:26,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:22:26,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:22:26,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:22:26,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:22:26,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:22:26,026 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:22:26,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:22:26,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:22:26,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:22:26,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:22:26,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:22:26,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:22:26,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:22:26,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:22:26,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:22:26,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:22:26,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:22:26,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:22:26,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:26,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:22:26,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:22:26,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:22:26,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:22:26,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:22:26,034 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:22:26,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:22:26,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:22:26,035 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c [2022-11-02 20:22:26,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:22:26,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:22:26,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:22:26,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:22:26,489 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:22:26,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:26,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/f170d272d/512a0bf741a14f3ead8b43571d9b8c12/FLAG62e73b040 [2022-11-02 20:22:27,191 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:22:27,192 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:27,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/f170d272d/512a0bf741a14f3ead8b43571d9b8c12/FLAG62e73b040 [2022-11-02 20:22:27,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/f170d272d/512a0bf741a14f3ead8b43571d9b8c12 [2022-11-02 20:22:27,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:22:27,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:22:27,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:27,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:22:27,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:22:27,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:27" (1/1) ... [2022-11-02 20:22:27,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d72e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:27, skipping insertion in model container [2022-11-02 20:22:27,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:27" (1/1) ... [2022-11-02 20:22:27,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:22:27,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:22:27,917 WARN L230 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-02 20:22:28,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:28,101 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:22:28,115 WARN L230 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-02 20:22:28,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:28,225 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:22:28,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28 WrapperNode [2022-11-02 20:22:28,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:28,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:28,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:22:28,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:22:28,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,369 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 552 [2022-11-02 20:22:28,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:28,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:22:28,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:22:28,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:22:28,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:22:28,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:22:28,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:22:28,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:22:28,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (1/1) ... [2022-11-02 20:22:28,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:28,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:28,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:22:28,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:22:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:22:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:22:28,859 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:22:28,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:22:32,471 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:22:32,483 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:22:32,483 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:22:32,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:32 BoogieIcfgContainer [2022-11-02 20:22:32,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:22:32,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:22:32,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:22:32,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:22:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:22:27" (1/3) ... [2022-11-02 20:22:32,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f8afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:32, skipping insertion in model container [2022-11-02 20:22:32,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:28" (2/3) ... [2022-11-02 20:22:32,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@698f8afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:32, skipping insertion in model container [2022-11-02 20:22:32,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:32" (3/3) ... [2022-11-02 20:22:32,501 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:32,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:22:32,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:22:32,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:32,623 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=PETRI_NET, 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;@9165485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:32,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:22:32,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 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) [2022-11-02 20:22:32,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:22:32,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:32,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:22:32,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:22:32,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:22:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:32,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585254745] [2022-11-02 20:22:32,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:32,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:33,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:22:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:22:33,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:22:33,366 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:22:33,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:22:33,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:22:33,377 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:22:33,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:22:33,418 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 20:22:33,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:22:33 BoogieIcfgContainer [2022-11-02 20:22:33,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:22:33,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:22:33,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:22:33,437 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:22:33,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:32" (3/4) ... [2022-11-02 20:22:33,445 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:22:33,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:22:33,448 INFO L158 Benchmark]: Toolchain (without parser) took 5973.38ms. Allocated memory was 102.8MB in the beginning and 167.8MB in the end (delta: 65.0MB). Free memory was 62.6MB in the beginning and 81.8MB in the end (delta: -19.2MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,449 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 79.5MB in the beginning and 79.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:22:33,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.32ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 67.5MB in the end (delta: -5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.38ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 61.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,462 INFO L158 Benchmark]: Boogie Preprocessor took 73.54ms. Allocated memory is still 102.8MB. Free memory was 61.1MB in the beginning and 57.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,463 INFO L158 Benchmark]: RCFGBuilder took 4041.72ms. Allocated memory was 102.8MB in the beginning and 167.8MB in the end (delta: 65.0MB). Free memory was 57.0MB in the beginning and 121.7MB in the end (delta: -64.7MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,466 INFO L158 Benchmark]: TraceAbstraction took 947.13ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 81.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-02 20:22:33,466 INFO L158 Benchmark]: Witness Printer took 8.66ms. Allocated memory is still 167.8MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:22:33,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 102.8MB. Free memory was 79.5MB in the beginning and 79.4MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.32ms. Allocated memory is still 102.8MB. Free memory was 62.5MB in the beginning and 67.5MB in the end (delta: -5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.38ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 61.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.54ms. Allocated memory is still 102.8MB. Free memory was 61.1MB in the beginning and 57.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4041.72ms. Allocated memory was 102.8MB in the beginning and 167.8MB in the end (delta: 65.0MB). Free memory was 57.0MB in the beginning and 121.7MB in the end (delta: -64.7MB). Peak memory consumption was 80.5MB. Max. memory is 16.1GB. * TraceAbstraction took 947.13ms. Allocated memory is still 167.8MB. Free memory was 121.7MB in the beginning and 81.8MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 8.66ms. Allocated memory is still 167.8MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 137, overapproximation of bitwiseOr at line 140, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 10); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (10 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L37] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 8); [L38] const SORT_19 msb_SORT_19 = (SORT_19)1 << (8 - 1); [L40] const SORT_26 mask_SORT_26 = (SORT_26)-1 >> (sizeof(SORT_26) * 8 - 9); [L41] const SORT_26 msb_SORT_26 = (SORT_26)1 << (9 - 1); [L43] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 27); [L44] const SORT_33 msb_SORT_33 = (SORT_33)1 << (27 - 1); [L46] const SORT_7 var_9 = 0; [L47] const SORT_3 var_15 = 1; [L48] const SORT_3 var_25 = 0; [L49] const SORT_5 var_29 = 0; [L50] const SORT_5 var_30 = 908; [L51] const SORT_7 var_31 = 32; [L52] const SORT_7 var_32 = 65; [L53] const SORT_33 var_34 = 0; [L54] const SORT_7 var_38 = 26; [L55] const SORT_7 var_43 = 74; [L56] const SORT_5 var_46 = 652; [L57] const SORT_7 var_48 = 90; [L58] const SORT_5 var_51 = 460; [L59] const SORT_7 var_53 = 88; [L60] const SORT_5 var_56 = 332; [L61] const SORT_7 var_58 = 75; [L62] const SORT_5 var_61 = 268; [L63] const SORT_7 var_63 = 81; [L64] const SORT_5 var_66 = 215; [L65] const SORT_7 var_68 = 86; [L66] const SORT_5 var_71 = 151; [L67] const SORT_7 var_73 = 66; [L68] const SORT_5 var_76 = 119; [L69] const SORT_7 var_78 = 77; [L70] const SORT_5 var_81 = 118; [L71] const SORT_7 var_83 = 89; [L72] const SORT_5 var_86 = 86; [L73] const SORT_7 var_88 = 71; [L74] const SORT_5 var_91 = 108; [L75] const SORT_7 var_93 = 87; [L76] const SORT_5 var_96 = 39; [L77] const SORT_7 var_98 = 68; [L78] const SORT_5 var_101 = 38; [L79] const SORT_7 var_103 = 72; [L80] const SORT_5 var_106 = 60; [L81] const SORT_7 var_108 = 76; [L82] const SORT_5 var_111 = 56; [L83] const SORT_7 var_113 = 67; [L84] const SORT_5 var_116 = 40; [L85] const SORT_7 var_118 = 70; [L86] const SORT_5 var_121 = 48; [L87] const SORT_7 var_123 = 80; [L88] const SORT_5 var_126 = 32; [L89] const SORT_7 var_128 = 85; [L90] const SORT_5 var_131 = 31; [L91] const SORT_7 var_133 = 84; [L92] const SORT_5 var_136 = 29; [L93] const SORT_7 var_138 = 78; [L94] const SORT_5 var_141 = 21; [L95] const SORT_7 var_143 = 82; [L96] const SORT_5 var_146 = 25; [L97] const SORT_7 var_148 = 79; [L98] const SORT_5 var_151 = 17; [L99] const SORT_7 var_153 = 73; [L100] const SORT_5 var_156 = 30; [L101] const SORT_5 var_160 = 20; [L102] const SORT_7 var_162 = 83; [L103] const SORT_5 var_165 = 11; [L104] const SORT_5 var_169 = 10; [L105] const SORT_7 var_171 = 69; [L106] const SORT_7 var_176 = 1; [L108] SORT_1 input_2; [L109] SORT_3 input_4; [L110] SORT_19 input_20; [L111] SORT_3 input_22; [L113] SORT_5 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L117] input_2 = __VERIFIER_nondet_uchar() [L118] input_2 = input_2 & mask_SORT_1 [L119] input_4 = __VERIFIER_nondet_uchar() [L120] input_20 = __VERIFIER_nondet_uchar() [L121] input_22 = __VERIFIER_nondet_uchar() [L124] SORT_5 var_8_arg_0 = state_6; [L125] var_8_arg_0 = var_8_arg_0 & mask_SORT_5 [L126] SORT_7 var_8 = var_8_arg_0; [L127] SORT_7 var_10_arg_0 = var_8; [L128] SORT_7 var_10_arg_1 = var_9; [L129] SORT_3 var_10 = var_10_arg_0 == var_10_arg_1; [L130] SORT_5 var_11_arg_0 = state_6; [L131] var_11_arg_0 = var_11_arg_0 & mask_SORT_5 [L132] SORT_7 var_11 = var_11_arg_0; [L133] SORT_7 var_12_arg_0 = var_11; [L134] SORT_7 var_12_arg_1 = var_9; [L135] SORT_3 var_12 = var_12_arg_0 == var_12_arg_1; [L136] SORT_3 var_13_arg_0 = var_12; [L137] SORT_3 var_13 = ~var_13_arg_0; [L138] SORT_3 var_14_arg_0 = var_10; [L139] SORT_3 var_14_arg_1 = var_13; [L140] SORT_3 var_14 = var_14_arg_0 | var_14_arg_1; [L141] SORT_3 var_16_arg_0 = var_14; [L142] SORT_3 var_16 = ~var_16_arg_0; [L143] SORT_3 var_17_arg_0 = var_15; [L144] SORT_3 var_17_arg_1 = var_16; [L145] SORT_3 var_17 = var_17_arg_0 & var_17_arg_1; [L146] var_17 = var_17 & mask_SORT_3 [L147] SORT_3 bad_18_arg_0 = var_17; [L148] CALL __VERIFIER_assert(!(bad_18_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, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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 [2022-11-02 20:22:33,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c --- 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-5e519f3 [2022-11-02 20:22:36,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:22:36,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:22:36,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:22:36,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:22:36,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:22:36,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:22:36,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:22:36,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:22:36,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:22:36,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:22:36,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:22:36,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:22:36,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:22:36,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:22:36,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:22:36,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:22:36,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:22:36,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:22:36,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:22:36,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:22:36,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:22:36,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:22:36,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:22:36,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:22:36,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:22:36,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:22:36,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:22:36,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:22:36,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:22:36,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:22:36,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:22:36,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:22:36,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:22:36,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:22:36,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:22:36,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:22:36,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:22:36,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:22:36,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:22:36,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:22:36,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 20:22:36,836 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:22:36,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:22:36,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:22:36,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:22:36,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:22:36,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:22:36,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:22:36,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:22:36,839 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:22:36,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:22:36,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:22:36,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:22:36,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:22:36,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:22:36,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:22:36,841 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:22:36,841 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:22:36,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:22:36,842 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:22:36,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:22:36,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:22:36,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:22:36,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:22:36,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:36,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:22:36,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:22:36,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:22:36,847 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:22:36,847 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:22:36,848 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:22:36,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:22:36,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:22:36,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:22:36,849 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c [2022-11-02 20:22:37,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:22:37,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:22:37,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:22:37,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:22:37,390 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:22:37,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:37,476 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/8a7be7b69/7817c8c1ddb748d9bacdbf3590e94f2c/FLAG64c9c22b7 [2022-11-02 20:22:38,281 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:22:38,281 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:38,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/8a7be7b69/7817c8c1ddb748d9bacdbf3590e94f2c/FLAG64c9c22b7 [2022-11-02 20:22:38,308 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/data/8a7be7b69/7817c8c1ddb748d9bacdbf3590e94f2c [2022-11-02 20:22:38,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:22:38,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:22:38,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:38,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:22:38,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:22:38,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:38,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcd8949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38, skipping insertion in model container [2022-11-02 20:22:38,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:38,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:22:38,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:22:38,575 WARN L230 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-02 20:22:38,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:38,817 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:22:38,831 WARN L230 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_35a44348-9621-444d-9f32-ce9cfdab1ffb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-02 20:22:38,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:38,956 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:22:38,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38 WrapperNode [2022-11-02 20:22:38,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:38,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:38,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:22:38,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:22:38,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:38,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,086 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 552 [2022-11-02 20:22:39,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:39,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:22:39,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:22:39,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:22:39,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:22:39,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:22:39,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:22:39,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:22:39,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (1/1) ... [2022-11-02 20:22:39,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:39,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:39,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:22:39,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:22:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:22:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:22:39,650 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:22:39,652 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:22:40,390 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:22:40,401 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:22:40,401 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:22:40,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:40 BoogieIcfgContainer [2022-11-02 20:22:40,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:22:40,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:22:40,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:22:40,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:22:40,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:22:38" (1/3) ... [2022-11-02 20:22:40,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff50faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:40, skipping insertion in model container [2022-11-02 20:22:40,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:38" (2/3) ... [2022-11-02 20:22:40,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff50faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:40, skipping insertion in model container [2022-11-02 20:22:40,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:40" (3/3) ... [2022-11-02 20:22:40,433 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2022-11-02 20:22:40,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:22:40,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:22:40,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:40,600 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=PETRI_NET, 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;@1dcba46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:40,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:22:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 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) [2022-11-02 20:22:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:22:40,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:22:40,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:22:40,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:22:40,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:40,629 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 20:22:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:22:40,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680103131] [2022-11-02 20:22:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:40,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:22:40,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:22:40,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:22:40,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:22:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:40,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-02 20:22:40,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:22:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:41,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:22:41,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:22:41,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680103131] [2022-11-02 20:22:41,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680103131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:41,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:41,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:22:41,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203119362] [2022-11-02 20:22:41,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:41,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:22:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:22:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:22:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:22:41,471 INFO L87 Difference]: Start difference. First operand has 69 states, 67 states have (on average 1.492537313432836) internal successors, (100), 68 states have internal predecessors, (100), 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) [2022-11-02 20:22:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:22:41,600 INFO L93 Difference]: Finished difference Result 131 states and 196 transitions. [2022-11-02 20:22:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:22:41,605 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 [2022-11-02 20:22:41,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:22:41,613 INFO L225 Difference]: With dead ends: 131 [2022-11-02 20:22:41,613 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:22:41,620 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 [2022-11-02 20:22:41,626 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 179 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:22:41,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 93 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:22:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:22:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:22:41,660 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) [2022-11-02 20:22:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:22:41,662 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-02 20:22:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:22:41,662 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:22:41,663 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) [2022-11-02 20:22:41,663 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:22:41,663 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:22:41,667 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 20:22:41,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 20:22:41,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:22:41,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-02 20:22:41,927 INFO L899 garLoopResultBuilder]: For program point L349(line 349) no Hoare annotation was computed. [2022-11-02 20:22:41,927 INFO L899 garLoopResultBuilder]: For program point L349-2(line 349) no Hoare annotation was computed. [2022-11-02 20:22:41,927 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-02 20:22:41,928 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-02 20:22:41,929 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-02 20:22:41,929 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-02 20:22:41,929 INFO L899 garLoopResultBuilder]: For program point L433(line 433) no Hoare annotation was computed. [2022-11-02 20:22:41,930 INFO L899 garLoopResultBuilder]: For program point L433-2(line 433) no Hoare annotation was computed. [2022-11-02 20:22:41,930 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-11-02 20:22:41,931 INFO L899 garLoopResultBuilder]: For program point L417-2(line 417) no Hoare annotation was computed. [2022-11-02 20:22:41,932 INFO L899 garLoopResultBuilder]: For program point L401(line 401) no Hoare annotation was computed. [2022-11-02 20:22:41,932 INFO L899 garLoopResultBuilder]: For program point L401-2(line 401) no Hoare annotation was computed. [2022-11-02 20:22:41,933 INFO L899 garLoopResultBuilder]: For program point L385(line 385) no Hoare annotation was computed. [2022-11-02 20:22:41,933 INFO L899 garLoopResultBuilder]: For program point L385-2(line 385) no Hoare annotation was computed. [2022-11-02 20:22:41,934 INFO L899 garLoopResultBuilder]: For program point L369(line 369) no Hoare annotation was computed. [2022-11-02 20:22:41,935 INFO L899 garLoopResultBuilder]: For program point L369-2(line 369) no Hoare annotation was computed. [2022-11-02 20:22:41,935 INFO L899 garLoopResultBuilder]: For program point L353(line 353) no Hoare annotation was computed. [2022-11-02 20:22:41,935 INFO L899 garLoopResultBuilder]: For program point L353-2(line 353) no Hoare annotation was computed. [2022-11-02 20:22:41,935 INFO L899 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2022-11-02 20:22:41,936 INFO L899 garLoopResultBuilder]: For program point L437-2(line 437) no Hoare annotation was computed. [2022-11-02 20:22:41,938 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-02 20:22:41,938 INFO L899 garLoopResultBuilder]: For program point L173-2(line 173) no Hoare annotation was computed. [2022-11-02 20:22:41,939 INFO L899 garLoopResultBuilder]: For program point L421(line 421) no Hoare annotation was computed. [2022-11-02 20:22:41,939 INFO L899 garLoopResultBuilder]: For program point L421-2(line 421) no Hoare annotation was computed. [2022-11-02 20:22:41,940 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-02 20:22:41,940 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-11-02 20:22:41,941 INFO L899 garLoopResultBuilder]: For program point L405-2(line 405) no Hoare annotation was computed. [2022-11-02 20:22:41,941 INFO L899 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-11-02 20:22:41,941 INFO L899 garLoopResultBuilder]: For program point L389(line 389) no Hoare annotation was computed. [2022-11-02 20:22:41,942 INFO L899 garLoopResultBuilder]: For program point L455-2(line 455) no Hoare annotation was computed. [2022-11-02 20:22:41,943 INFO L899 garLoopResultBuilder]: For program point L389-2(line 389) no Hoare annotation was computed. [2022-11-02 20:22:41,948 INFO L899 garLoopResultBuilder]: For program point L373(line 373) no Hoare annotation was computed. [2022-11-02 20:22:41,949 INFO L899 garLoopResultBuilder]: For program point L373-2(line 373) no Hoare annotation was computed. [2022-11-02 20:22:41,949 INFO L899 garLoopResultBuilder]: For program point L357(line 357) no Hoare annotation was computed. [2022-11-02 20:22:41,949 INFO L899 garLoopResultBuilder]: For program point L357-2(line 357) no Hoare annotation was computed. [2022-11-02 20:22:41,950 INFO L899 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2022-11-02 20:22:41,951 INFO L899 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2022-11-02 20:22:41,952 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-02 20:22:41,955 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-11-02 20:22:41,956 INFO L899 garLoopResultBuilder]: For program point L441-2(line 441) no Hoare annotation was computed. [2022-11-02 20:22:41,956 INFO L899 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2022-11-02 20:22:41,957 INFO L899 garLoopResultBuilder]: For program point L425-2(line 425) no Hoare annotation was computed. [2022-11-02 20:22:41,958 INFO L899 garLoopResultBuilder]: For program point L409(line 409) no Hoare annotation was computed. [2022-11-02 20:22:41,958 INFO L899 garLoopResultBuilder]: For program point L409-2(line 409) no Hoare annotation was computed. [2022-11-02 20:22:41,958 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2022-11-02 20:22:41,958 INFO L899 garLoopResultBuilder]: For program point L393-2(line 393) no Hoare annotation was computed. [2022-11-02 20:22:41,959 INFO L899 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2022-11-02 20:22:41,965 INFO L899 garLoopResultBuilder]: For program point L377-2(line 377) no Hoare annotation was computed. [2022-11-02 20:22:41,965 INFO L895 garLoopResultBuilder]: At program point L460(lines 22 461) the Hoare annotation is: false [2022-11-02 20:22:41,966 INFO L899 garLoopResultBuilder]: For program point L361(line 361) no Hoare annotation was computed. [2022-11-02 20:22:41,967 INFO L899 garLoopResultBuilder]: For program point L361-2(line 361) no Hoare annotation was computed. [2022-11-02 20:22:41,968 INFO L899 garLoopResultBuilder]: For program point L345(line 345) no Hoare annotation was computed. [2022-11-02 20:22:41,968 INFO L899 garLoopResultBuilder]: For program point L345-2(line 345) no Hoare annotation was computed. [2022-11-02 20:22:41,968 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-02 20:22:41,968 INFO L899 garLoopResultBuilder]: For program point L445(line 445) no Hoare annotation was computed. [2022-11-02 20:22:41,969 INFO L899 garLoopResultBuilder]: For program point L445-2(line 445) no Hoare annotation was computed. [2022-11-02 20:22:41,969 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-02 20:22:41,970 INFO L895 garLoopResultBuilder]: At program point L115-2(lines 115 459) the Hoare annotation is: (and (= (_ bv1023 16) |ULTIMATE.start_main_~mask_SORT_5~0#1|) (= |ULTIMATE.start_main_~var_9~0#1| (_ bv0 32)) (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|)) [2022-11-02 20:22:41,970 INFO L899 garLoopResultBuilder]: For program point L115-3(lines 115 459) no Hoare annotation was computed. [2022-11-02 20:22:41,970 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-11-02 20:22:41,971 INFO L899 garLoopResultBuilder]: For program point L429-2(line 429) no Hoare annotation was computed. [2022-11-02 20:22:41,971 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2022-11-02 20:22:41,971 INFO L899 garLoopResultBuilder]: For program point L413-2(line 413) no Hoare annotation was computed. [2022-11-02 20:22:41,972 INFO L899 garLoopResultBuilder]: For program point L397(line 397) no Hoare annotation was computed. [2022-11-02 20:22:41,972 INFO L899 garLoopResultBuilder]: For program point L397-2(line 397) no Hoare annotation was computed. [2022-11-02 20:22:41,972 INFO L899 garLoopResultBuilder]: For program point L381(line 381) no Hoare annotation was computed. [2022-11-02 20:22:41,972 INFO L899 garLoopResultBuilder]: For program point L381-2(line 381) no Hoare annotation was computed. [2022-11-02 20:22:41,973 INFO L899 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2022-11-02 20:22:41,973 INFO L899 garLoopResultBuilder]: For program point L365-2(line 365) no Hoare annotation was computed. [2022-11-02 20:22:41,979 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-02 20:22:41,983 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:22:42,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:22:42 BoogieIcfgContainer [2022-11-02 20:22:42,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:22:42,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:22:42,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:22:42,009 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:22:42,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:40" (3/4) ... [2022-11-02 20:22:42,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:22:42,047 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-02 20:22:42,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-02 20:22:42,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:22:42,119 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:59) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:153) at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.lambda$2(CorrectnessWitnessGenerator.java:95) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.CorrectnessWitnessGenerator.makeGraphMLString(CorrectnessWitnessGenerator.java:115) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:158) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:138) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:131) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-02 20:22:42,123 INFO L158 Benchmark]: Toolchain (without parser) took 3809.66ms. Allocated memory was 54.5MB in the beginning and 94.4MB in the end (delta: 39.8MB). Free memory was 28.9MB in the beginning and 51.9MB in the end (delta: -23.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,124 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 45.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:22:42,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.47ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 43.9MB in the end (delta: -15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.81ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 39.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,125 INFO L158 Benchmark]: Boogie Preprocessor took 60.97ms. Allocated memory is still 71.3MB. Free memory was 39.5MB in the beginning and 36.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,126 INFO L158 Benchmark]: RCFGBuilder took 1250.87ms. Allocated memory is still 71.3MB. Free memory was 36.6MB in the beginning and 28.7MB in the end (delta: 7.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,127 INFO L158 Benchmark]: TraceAbstraction took 1588.46ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 48.8MB in the beginning and 56.9MB in the end (delta: -8.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,127 INFO L158 Benchmark]: Witness Printer took 113.55ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 51.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:22:42,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 34.7MB in the beginning and 34.6MB in the end (delta: 45.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.47ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 28.7MB in the beginning and 43.9MB in the end (delta: -15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.81ms. Allocated memory is still 71.3MB. Free memory was 43.9MB in the beginning and 39.5MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.97ms. Allocated memory is still 71.3MB. Free memory was 39.5MB in the beginning and 36.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1250.87ms. Allocated memory is still 71.3MB. Free memory was 36.6MB in the beginning and 28.7MB in the end (delta: 7.9MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1588.46ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 48.8MB in the beginning and 56.9MB in the end (delta: -8.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 113.55ms. Allocated memory is still 94.4MB. Free memory was 56.9MB in the beginning and 51.9MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. 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 - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 90 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 11 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 26 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: (1023bv16 == mask_SORT_5 && var_9 == 0bv32) && 1bv8 == mask_SORT_3 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:78) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:22:42,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35a44348-9621-444d-9f32-ce9cfdab1ffb/bin/uautomizer-Dbtcem3rbc/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: ERROR: ExceptionOrErrorResult: NullPointerException: null