./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-4e7fbc6 [2022-11-23 14:08:45,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:08:45,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:08:45,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:08:45,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:08:45,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:08:45,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:08:45,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:08:45,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:08:45,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:08:45,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:08:45,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:08:45,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:08:45,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:08:45,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:08:45,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:08:45,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:08:45,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:08:45,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:08:45,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:08:45,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:08:45,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:08:45,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:08:45,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:08:45,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:08:45,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:08:45,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:08:45,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:08:45,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:08:45,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:08:45,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:08:45,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:08:45,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:08:45,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:08:45,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:08:45,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:08:45,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:08:45,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:08:45,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:08:45,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:08:45,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:08:45,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:08:45,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:08:45,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:08:45,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:08:45,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:08:45,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:08:45,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:08:45,915 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:08:45,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:08:45,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:08:45,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:08:45,917 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:08:45,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:08:45,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:08:45,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:08:45,918 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:08:45,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:08:45,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:08:45,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:08:45,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:08:45,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:08:45,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:08:45,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:08:45,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:08:45,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:08:45,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:08:45,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:08:45,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:08:45,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:08:45,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:08:45,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:08:45,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:08:45,924 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:08:45,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:08:45,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:08:45,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:08:45,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:08:45,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:08:45,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:08:45,925 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_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c [2022-11-23 14:08:46,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:08:46,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:08:46,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:08:46,283 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:08:46,283 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:08:46,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:08:49,648 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:08:49,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:08:49,931 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:08:49,941 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/783559592/447bcb400edf45cba4a27ae18488bb2b/FLAG53532c73b [2022-11-23 14:08:49,959 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/783559592/447bcb400edf45cba4a27ae18488bb2b [2022-11-23 14:08:49,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:08:49,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:08:49,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:08:49,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:08:49,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:08:49,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:49" (1/1) ... [2022-11-23 14:08:49,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328c7954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:49, skipping insertion in model container [2022-11-23 14:08:49,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:49" (1/1) ... [2022-11-23 14:08:49,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:08:50,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:08:50,189 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-23 14:08:50,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:08:50,330 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:08:50,345 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-23 14:08:50,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:08:50,451 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:08:50,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50 WrapperNode [2022-11-23 14:08:50,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:08:50,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:08:50,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:08:50,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:08:50,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,546 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 436 [2022-11-23 14:08:50,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:08:50,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:08:50,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:08:50,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:08:50,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:08:50,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:08:50,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:08:50,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:08:50,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (1/1) ... [2022-11-23 14:08:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:08:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:08:50,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:08:50,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:08:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:08:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:08:50,965 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:08:50,968 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:08:53,282 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:08:53,313 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:08:53,317 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:08:53,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53 BoogieIcfgContainer [2022-11-23 14:08:53,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:08:53,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:08:53,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:08:53,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:08:53,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:49" (1/3) ... [2022-11-23 14:08:53,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d74808e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:53, skipping insertion in model container [2022-11-23 14:08:53,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:50" (2/3) ... [2022-11-23 14:08:53,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d74808e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:53, skipping insertion in model container [2022-11-23 14:08:53,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53" (3/3) ... [2022-11-23 14:08:53,340 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:08:53,363 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:08:53,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:08:53,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:08:53,430 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d61b426, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:08:53,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:08:53,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:08:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:08:53,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:53,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:08:53,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-23 14:08:53,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:53,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14297820] [2022-11-23 14:08:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:08:53,847 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:08:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:08:53,984 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:08:53,986 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:08:53,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:08:53,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:08:53,996 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:08:54,002 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:08:54,025 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:08:54,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:08:54 BoogieIcfgContainer [2022-11-23 14:08:54,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:08:54,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:08:54,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:08:54,035 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:08:54,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:53" (3/4) ... [2022-11-23 14:08:54,040 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:08:54,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:08:54,042 INFO L158 Benchmark]: Toolchain (without parser) took 4077.06ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 113.6MB in the beginning and 97.7MB in the end (delta: 16.0MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,042 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:08:54,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.48ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 93.6MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.28ms. Allocated memory is still 159.4MB. Free memory was 93.6MB in the beginning and 88.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,045 INFO L158 Benchmark]: Boogie Preprocessor took 54.10ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 85.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,045 INFO L158 Benchmark]: RCFGBuilder took 2718.13ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 85.8MB in the beginning and 129.1MB in the end (delta: -43.4MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,046 INFO L158 Benchmark]: TraceAbstraction took 709.63ms. Allocated memory is still 207.6MB. Free memory was 129.1MB in the beginning and 97.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 14:08:54,047 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 207.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:08:54,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.48ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 93.6MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.28ms. Allocated memory is still 159.4MB. Free memory was 93.6MB in the beginning and 88.5MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.10ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 85.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2718.13ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 85.8MB in the beginning and 129.1MB in the end (delta: -43.4MB). Peak memory consumption was 87.1MB. Max. memory is 16.1GB. * TraceAbstraction took 709.63ms. Allocated memory is still 207.6MB. Free memory was 129.1MB in the beginning and 97.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 207.6MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:08:54,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-4e7fbc6 [2022-11-23 14:08:56,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:08:56,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:08:56,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:08:56,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:08:56,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:08:56,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:08:56,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:08:56,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:08:56,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:08:56,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:08:56,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:08:56,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:08:56,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:08:56,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:08:56,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:08:56,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:08:56,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:08:56,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:08:56,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:08:56,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:08:56,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:08:56,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:08:56,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:08:56,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:08:56,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:08:56,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:08:56,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:08:56,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:08:56,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:08:56,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:08:56,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:08:56,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:08:56,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:08:56,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:08:56,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:08:56,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:08:56,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:08:56,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:08:56,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:08:56,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:08:56,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:08:56,899 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:08:56,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:08:56,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:08:56,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:08:56,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:08:56,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:08:56,901 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:08:56,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:08:56,902 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:08:56,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:08:56,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:08:56,902 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:08:56,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:08:56,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:08:56,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:08:56,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:08:56,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:08:56,905 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:08:56,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:08:56,905 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:08:56,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:08:56,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:08:56,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:08:56,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:08:56,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:08:56,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:08:56,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:08:56,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:08:56,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:08:56,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:08:56,908 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:08:56,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:08:56,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:08:56,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:08:56,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:08:56,909 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_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6871b05bec3dad5db16e29b84fb0114df3be091be954aec09f0194252ce4b5c [2022-11-23 14:08:57,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:08:57,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:08:57,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:08:57,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:08:57,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:08:57,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:09:00,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:09:01,111 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:09:01,118 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:09:01,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/6fb3cba13/78fa2cd0c95542daa8869fd37a004bd2/FLAG697b0daf8 [2022-11-23 14:09:01,173 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/data/6fb3cba13/78fa2cd0c95542daa8869fd37a004bd2 [2022-11-23 14:09:01,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:09:01,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:09:01,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:09:01,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:09:01,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:09:01,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:01,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eeca702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01, skipping insertion in model container [2022-11-23 14:09:01,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:01,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:09:01,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:09:01,490 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-23 14:09:01,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:09:01,790 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:09:01,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_enc.c[1107,1120] [2022-11-23 14:09:01,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:09:01,922 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:09:01,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01 WrapperNode [2022-11-23 14:09:01,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:09:01,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:09:01,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:09:01,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:09:01,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:01,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,004 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 436 [2022-11-23 14:09:02,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:09:02,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:09:02,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:09:02,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:09:02,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,045 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:09:02,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:09:02,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:09:02,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:09:02,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (1/1) ... [2022-11-23 14:09:02,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:09:02,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:09:02,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:09:02,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:09:02,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:09:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:09:02,466 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:09:02,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:09:03,266 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:09:03,273 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:09:03,273 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:09:03,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:03 BoogieIcfgContainer [2022-11-23 14:09:03,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:09:03,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:09:03,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:09:03,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:09:03,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:09:01" (1/3) ... [2022-11-23 14:09:03,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5117f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:03, skipping insertion in model container [2022-11-23 14:09:03,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:09:01" (2/3) ... [2022-11-23 14:09:03,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5117f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:09:03, skipping insertion in model container [2022-11-23 14:09:03,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:03" (3/3) ... [2022-11-23 14:09:03,285 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_enc.c [2022-11-23 14:09:03,307 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:09:03,308 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:09:03,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:09:03,384 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e3811b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:09:03,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:09:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:09:03,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:03,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:09:03,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:03,411 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:09:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:09:03,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637656894] [2022-11-23 14:09:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:03,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:09:03,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:09:03,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:09:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:03,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 14:09:03,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:09:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:09:04,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:09:04,023 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:09:04,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637656894] [2022-11-23 14:09:04,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637656894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:04,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:04,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:09:04,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180128094] [2022-11-23 14:09:04,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:04,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:09:04,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:09:04,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:09:04,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:09:04,088 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:09:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:04,138 INFO L93 Difference]: Finished difference Result 15 states and 22 transitions. [2022-11-23 14:09:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:09:04,142 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 [2022-11-23 14:09:04,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:04,150 INFO L225 Difference]: With dead ends: 15 [2022-11-23 14:09:04,150 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:09:04,153 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 [2022-11-23 14:09:04,158 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 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 [2022-11-23 14:09:04,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:09:04,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:09:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:09:04,188 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) [2022-11-23 14:09:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:09:04,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-23 14:09:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:04,191 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:09:04,191 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) [2022-11-23 14:09:04,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:09:04,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:09:04,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:09:04,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:09:04,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:09:04,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:09:04,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:09:04,453 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:09:04,453 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:09:04,454 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:09:04,454 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 14:09:04,455 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 14:09:04,455 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 14:09:04,456 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 14:09:04,457 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|)) [2022-11-23 14:09:04,459 INFO L899 garLoopResultBuilder]: For program point L115-3(lines 115 459) no Hoare annotation was computed. [2022-11-23 14:09:04,459 INFO L895 garLoopResultBuilder]: At program point L460(lines 22 461) the Hoare annotation is: false [2022-11-23 14:09:04,463 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:09:04,467 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:09:04,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:09:04 BoogieIcfgContainer [2022-11-23 14:09:04,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:09:04,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:09:04,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:09:04,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:09:04,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:09:03" (3/4) ... [2022-11-23 14:09:04,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:09:04,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 14:09:04,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:09:04,524 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:09:04,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:09:04,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:09:04,603 INFO L158 Benchmark]: Toolchain (without parser) took 3421.32ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 38.5MB in the beginning and 39.6MB in the end (delta: -1.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,603 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:09:04,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.39ms. Allocated memory is still 69.2MB. Free memory was 38.3MB in the beginning and 39.1MB in the end (delta: -798.9kB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.14ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 35.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,605 INFO L158 Benchmark]: Boogie Preprocessor took 47.79ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 32.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,605 INFO L158 Benchmark]: RCFGBuilder took 1221.23ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 32.3MB in the beginning and 45.6MB in the end (delta: -13.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,606 INFO L158 Benchmark]: TraceAbstraction took 1210.59ms. Allocated memory is still 94.4MB. Free memory was 44.9MB in the beginning and 46.8MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:09:04,606 INFO L158 Benchmark]: Witness Printer took 113.88ms. Allocated memory is still 94.4MB. Free memory was 46.8MB in the beginning and 39.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 14:09:04,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory was 46.3MB in the beginning and 46.2MB in the end (delta: 49.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.39ms. Allocated memory is still 69.2MB. Free memory was 38.3MB in the beginning and 39.1MB in the end (delta: -798.9kB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.14ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 35.1MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.79ms. Allocated memory is still 69.2MB. Free memory was 35.1MB in the beginning and 32.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1221.23ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 32.3MB in the beginning and 45.6MB in the end (delta: -13.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1210.59ms. Allocated memory is still 94.4MB. Free memory was 44.9MB in the beginning and 46.8MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 113.88ms. Allocated memory is still 94.4MB. Free memory was 46.8MB in the beginning and 39.6MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 6 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, 3 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=11occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.3s 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 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:09:04,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0f5335-7f7e-4b33-8c2f-35f6be1825af/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE