./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8 --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 14298bb0a2bf96d84ca189c4c0efe0c896bf70c67776a8319b30bf6c9c53e08f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:30:19,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:19,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:19,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:19,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:19,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:19,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:19,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:19,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:19,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:19,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:19,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:19,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:19,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:19,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:19,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:19,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:19,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:19,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:19,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:19,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:19,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:19,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:19,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:19,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:19,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:19,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:19,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:19,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:19,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:19,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:19,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:19,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:19,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:19,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:19,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:19,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:19,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:19,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:19,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:19,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:19,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:30:19,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:19,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:19,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:19,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:19,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:19,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:19,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:19,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:19,307 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:19,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:19,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:19,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:19,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:19,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:19,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:19,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:19,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:19,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:19,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:19,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:19,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:19,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:19,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:19,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:19,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:19,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:19,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:19,313 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:19,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:19,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:19,314 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_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14298bb0a2bf96d84ca189c4c0efe0c896bf70c67776a8319b30bf6c9c53e08f [2022-11-16 11:30:19,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:19,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:19,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:19,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:19,603 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:19,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:19,679 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/99413c8f0/b0876ceae56342fba5d12db5ff2b4923/FLAGf4c097d71 [2022-11-16 11:30:20,135 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:20,136 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:20,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/99413c8f0/b0876ceae56342fba5d12db5ff2b4923/FLAGf4c097d71 [2022-11-16 11:30:20,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/99413c8f0/b0876ceae56342fba5d12db5ff2b4923 [2022-11-16 11:30:20,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:20,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:20,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:20,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:20,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:20,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fe4dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20, skipping insertion in model container [2022-11-16 11:30:20,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:20,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:20,703 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1107,1120] [2022-11-16 11:30:20,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:20,776 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:20,787 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1107,1120] [2022-11-16 11:30:20,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:20,872 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:20,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20 WrapperNode [2022-11-16 11:30:20,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:20,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:20,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:20,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:20,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,964 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 205 [2022-11-16 11:30:20,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:20,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:20,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:20,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:20,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:20,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:21,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:21,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:21,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:21,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (1/1) ... [2022-11-16 11:30:21,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:21,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:21,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:21,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:21,206 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:21,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:21,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:21,811 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:21,811 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:30:21,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:21 BoogieIcfgContainer [2022-11-16 11:30:21,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:21,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:21,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:21,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:21,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:20" (1/3) ... [2022-11-16 11:30:21,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71623115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:21, skipping insertion in model container [2022-11-16 11:30:21,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:20" (2/3) ... [2022-11-16 11:30:21,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71623115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:21, skipping insertion in model container [2022-11-16 11:30:21,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:21" (3/3) ... [2022-11-16 11:30:21,823 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:21,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:21,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:30:21,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:21,900 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;@501fb8ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:21,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:30:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:30:21,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:21,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:21,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:21,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1809713074, now seen corresponding path program 1 times [2022-11-16 11:30:21,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:21,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253906800] [2022-11-16 11:30:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:21,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:22,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:22,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253906800] [2022-11-16 11:30:22,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253906800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:22,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:22,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:30:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501233327] [2022-11-16 11:30:22,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:22,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:22,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:22,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:22,414 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:22,501 INFO L93 Difference]: Finished difference Result 31 states and 47 transitions. [2022-11-16 11:30:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:30:22,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-16 11:30:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:22,528 INFO L225 Difference]: With dead ends: 31 [2022-11-16 11:30:22,529 INFO L226 Difference]: Without dead ends: 19 [2022-11-16 11:30:22,532 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 [2022-11-16 11:30:22,538 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:22,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:30:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-16 11:30:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 12. [2022-11-16 11:30:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-16 11:30:22,593 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2022-11-16 11:30:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:22,594 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-16 11:30:22,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-16 11:30:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:30:22,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:22,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:22,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:22,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash 268255406, now seen corresponding path program 1 times [2022-11-16 11:30:22,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:22,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537051705] [2022-11-16 11:30:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:22,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:22,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:30:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:30:22,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:30:22,731 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:30:22,733 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:30:22,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:22,739 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 11:30:22,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:30:22,765 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 11:30:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:30:22 BoogieIcfgContainer [2022-11-16 11:30:22,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:30:22,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:30:22,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:30:22,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:30:22,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:21" (3/4) ... [2022-11-16 11:30:22,779 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:30:22,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:30:22,780 INFO L158 Benchmark]: Toolchain (without parser) took 2293.34ms. Allocated memory is still 115.3MB. Free memory was 76.5MB in the beginning and 77.0MB in the end (delta: -556.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:22,780 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:22,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.67ms. Allocated memory is still 115.3MB. Free memory was 76.3MB in the beginning and 88.3MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:30:22,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.76ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 85.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:22,782 INFO L158 Benchmark]: Boogie Preprocessor took 65.34ms. Allocated memory is still 115.3MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:22,783 INFO L158 Benchmark]: RCFGBuilder took 781.58ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 79.3MB in the end (delta: 4.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-16 11:30:22,784 INFO L158 Benchmark]: TraceAbstraction took 958.90ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-11-16 11:30:22,784 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 115.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:22,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 115.3MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.67ms. Allocated memory is still 115.3MB. Free memory was 76.3MB in the beginning and 88.3MB in the end (delta: -12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.76ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 85.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.34ms. Allocated memory is still 115.3MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 781.58ms. Allocated memory is still 115.3MB. Free memory was 83.8MB in the beginning and 79.3MB in the end (delta: 4.5MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * TraceAbstraction took 958.90ms. Allocated memory is still 115.3MB. Free memory was 78.7MB in the beginning and 77.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 115.3MB. Free memory is still 77.0MB. 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 102, overapproximation of bitwiseOr at line 97, overapproximation of bitwiseAnd at line 110. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 3); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (3 - 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_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 8); [L32] const SORT_12 msb_SORT_12 = (SORT_12)1 << (8 - 1); [L34] const SORT_3 var_14 = 0; [L35] const SORT_3 var_29 = 1; [L37] SORT_1 input_2; [L38] SORT_3 input_4; [L39] SORT_3 input_5; [L40] SORT_3 input_6; [L41] SORT_3 input_7; [L42] SORT_3 input_8; [L43] SORT_3 input_9; [L44] SORT_3 input_10; [L45] SORT_3 input_11; [L46] SORT_12 input_13; [L47] SORT_12 input_33; [L48] SORT_12 input_35; [L49] SORT_3 input_37; [L50] SORT_3 input_39; [L51] SORT_12 input_83; [L52] SORT_3 input_89; [L53] SORT_1 input_92; [L54] SORT_3 input_94; [L55] SORT_3 input_96; [L56] SORT_3 input_98; [L58] SORT_3 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L59] SORT_3 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L60] SORT_3 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L61] SORT_3 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L63] SORT_3 init_16_arg_1 = var_14; [L64] state_15 = init_16_arg_1 [L65] SORT_3 init_18_arg_1 = var_14; [L66] state_17 = init_18_arg_1 [L67] SORT_3 init_21_arg_1 = var_14; [L68] state_20 = init_21_arg_1 [L69] SORT_3 init_25_arg_1 = var_14; [L70] state_24 = init_25_arg_1 VAL [init_16_arg_1=0, init_18_arg_1=0, init_21_arg_1=0, init_25_arg_1=0, mask_SORT_1=7, mask_SORT_12=255, mask_SORT_3=1, msb_SORT_1=4, msb_SORT_12=128, msb_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_14=0, var_29=1] [L73] input_2 = __VERIFIER_nondet_uchar() [L74] input_4 = __VERIFIER_nondet_uchar() [L75] input_5 = __VERIFIER_nondet_uchar() [L76] input_6 = __VERIFIER_nondet_uchar() [L77] input_7 = __VERIFIER_nondet_uchar() [L78] input_8 = __VERIFIER_nondet_uchar() [L79] input_9 = __VERIFIER_nondet_uchar() [L80] input_10 = __VERIFIER_nondet_uchar() [L81] input_11 = __VERIFIER_nondet_uchar() [L82] input_13 = __VERIFIER_nondet_uchar() [L83] input_33 = __VERIFIER_nondet_uchar() [L84] input_35 = __VERIFIER_nondet_uchar() [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_39 = __VERIFIER_nondet_uchar() [L87] input_83 = __VERIFIER_nondet_uchar() [L88] input_89 = __VERIFIER_nondet_uchar() [L89] input_92 = __VERIFIER_nondet_uchar() [L90] input_94 = __VERIFIER_nondet_uchar() [L91] input_96 = __VERIFIER_nondet_uchar() [L92] input_98 = __VERIFIER_nondet_uchar() [L95] SORT_3 var_19_arg_0 = state_15; [L96] SORT_3 var_19_arg_1 = state_17; [L97] SORT_3 var_19 = var_19_arg_0 | var_19_arg_1; [L98] SORT_3 var_22_arg_0 = var_19; [L99] SORT_3 var_22_arg_1 = state_20; [L100] SORT_3 var_22 = var_22_arg_0 | var_22_arg_1; [L101] SORT_3 var_23_arg_0 = var_22; [L102] SORT_3 var_23 = ~var_23_arg_0; [L103] SORT_3 var_26_arg_0 = var_23; [L104] SORT_3 var_26_arg_1 = state_24; [L105] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L106] SORT_3 var_30_arg_0 = var_26; [L107] SORT_3 var_30 = ~var_30_arg_0; [L108] SORT_3 var_31_arg_0 = var_29; [L109] SORT_3 var_31_arg_1 = var_30; [L110] SORT_3 var_31 = var_31_arg_0 & var_31_arg_1; VAL [init_16_arg_1=0, init_18_arg_1=0, init_21_arg_1=0, init_25_arg_1=0, input_10=13, input_11=21, input_13=19, input_2=16, input_33=20, input_35=5, input_37=15, input_39=8, input_4=9, input_5=17, input_6=4, input_7=22, input_8=14, input_83=7, input_89=11, input_9=12, input_92=18, input_94=10, input_96=3, input_98=6, mask_SORT_1=7, mask_SORT_12=255, mask_SORT_3=1, msb_SORT_1=4, msb_SORT_12=128, msb_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=255, var_23_arg_0=0, var_26=255, var_26_arg_0=255, var_26_arg_1=0, var_29=1, var_30=2, var_30_arg_0=255, var_31=1, var_31_arg_0=1, var_31_arg_1=2] [L111] var_31 = var_31 & mask_SORT_3 VAL [init_16_arg_1=0, init_18_arg_1=0, init_21_arg_1=0, init_25_arg_1=0, input_10=13, input_11=21, input_13=19, input_2=16, input_33=20, input_35=5, input_37=15, input_39=8, input_4=9, input_5=17, input_6=4, input_7=22, input_8=14, input_83=7, input_89=11, input_9=12, input_92=18, input_94=10, input_96=3, input_98=6, mask_SORT_1=7, mask_SORT_12=255, mask_SORT_3=1, msb_SORT_1=4, msb_SORT_12=128, msb_SORT_3=1, state_15=0, state_17=0, state_20=0, state_24=0, var_14=0, var_19=0, var_19_arg_0=0, var_19_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=255, var_23_arg_0=0, var_26=255, var_26_arg_0=255, var_26_arg_1=0, var_29=1, var_30=2, var_30_arg_0=255, var_31=1, var_31_arg_0=1, var_31_arg_1=2] [L112] SORT_3 bad_32_arg_0 = var_31; [L113] CALL __VERIFIER_assert(!(bad_32_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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 15 mSDtfsCounter, 17 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=14occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:30:22,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8 --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 14298bb0a2bf96d84ca189c4c0efe0c896bf70c67776a8319b30bf6c9c53e08f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:30:24,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:24,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:25,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:25,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:25,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:25,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:25,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:25,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:25,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:25,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:25,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:25,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:25,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:25,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:25,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:25,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:25,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:25,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:25,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:25,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:25,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:25,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:25,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:25,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:25,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:25,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:25,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:25,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:25,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:25,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:25,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:25,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:25,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:25,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:25,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:25,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:25,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:25,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:25,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:25,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:25,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 11:30:25,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:25,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:25,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:25,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:25,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:25,110 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:25,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:25,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:25,111 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:25,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:25,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:25,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:25,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:25,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:25,113 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:30:25,113 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:30:25,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:30:25,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:25,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:25,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:25,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:25,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:25,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:25,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:25,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:25,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:25,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:25,116 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:30:25,116 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:30:25,116 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:25,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:25,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:25,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:30:25,117 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_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14298bb0a2bf96d84ca189c4c0efe0c896bf70c67776a8319b30bf6c9c53e08f [2022-11-16 11:30:25,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:25,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:25,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:25,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:25,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:25,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:25,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/23baa2358/0da1616e3e224cfaabf861094cdfa610/FLAG30e8c04bb [2022-11-16 11:30:26,115 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:26,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:26,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/23baa2358/0da1616e3e224cfaabf861094cdfa610/FLAG30e8c04bb [2022-11-16 11:30:26,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/data/23baa2358/0da1616e3e224cfaabf861094cdfa610 [2022-11-16 11:30:26,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:26,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:26,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:26,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:26,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:26,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295f8307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26, skipping insertion in model container [2022-11-16 11:30:26,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:26,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:26,641 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1107,1120] [2022-11-16 11:30:26,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:26,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:26,737 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_s1269b_p3.c[1107,1120] [2022-11-16 11:30:26,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:26,811 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:26,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26 WrapperNode [2022-11-16 11:30:26,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:26,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:26,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:26,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:26,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,857 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2022-11-16 11:30:26,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:26,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:26,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:26,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:26,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:26,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:26,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:26,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:26,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (1/1) ... [2022-11-16 11:30:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:26,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:26,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:26,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:27,095 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:27,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:27,440 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:27,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:27,458 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:30:27,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:27 BoogieIcfgContainer [2022-11-16 11:30:27,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:27,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:27,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:27,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:27,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:26" (1/3) ... [2022-11-16 11:30:27,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3f7fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:27, skipping insertion in model container [2022-11-16 11:30:27,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:26" (2/3) ... [2022-11-16 11:30:27,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3f7fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:27, skipping insertion in model container [2022-11-16 11:30:27,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:27" (3/3) ... [2022-11-16 11:30:27,476 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_s1269b_p3.c [2022-11-16 11:30:27,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:27,499 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:30:27,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:27,585 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;@29accf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:27,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:30:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 11:30:27,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:27,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 11:30:27,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 11:30:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:30:27,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774271353] [2022-11-16 11:30:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:27,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:27,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:30:27,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:30:27,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:30:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:27,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-16 11:30:27,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:28,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:28,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:30:28,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774271353] [2022-11-16 11:30:28,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774271353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:28,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:28,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:30:28,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65195732] [2022-11-16 11:30:28,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:28,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:28,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:30:28,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:28,161 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:28,233 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 11:30:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:30:28,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 11:30:28,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:28,246 INFO L225 Difference]: With dead ends: 20 [2022-11-16 11:30:28,247 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 11:30:28,250 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 [2022-11-16 11:30:28,255 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:28,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:30:28,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 11:30:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 11:30:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 11:30:28,298 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 11:30:28,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:28,299 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 11:30:28,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 11:30:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:30:28,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:28,301 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:28,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:30:28,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:28,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:28,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:28,516 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 11:30:28,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:30:28,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214225013] [2022-11-16 11:30:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:30:28,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:30:28,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:30:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:28,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 79 conjunts are in the unsatisfiable core [2022-11-16 11:30:28,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:29,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:29,349 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:30:29,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214225013] [2022-11-16 11:30:29,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214225013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:29,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:30:29,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 11:30:29,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381577876] [2022-11-16 11:30:29,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:29,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:30:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:30:29,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:30:29,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:30:29,354 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:29,437 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 11:30:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:30:29,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 11:30:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:29,438 INFO L225 Difference]: With dead ends: 16 [2022-11-16 11:30:29,439 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 11:30:29,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:30:29,440 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:29,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-11-16 11:30:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 11:30:29,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 11:30:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 11:30:29,446 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 11:30:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:29,447 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 11:30:29,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 11:30:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:30:29,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:29,448 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 11:30:29,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:29,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:29,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:29,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:29,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 11:30:29,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:30:29,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041826620] [2022-11-16 11:30:29,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:30:29,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:29,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:30:29,663 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:30:29,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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 (4)] Waiting until timeout for monitored process [2022-11-16 11:30:29,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 11:30:29,828 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:30:29,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 114 conjunts are in the unsatisfiable core [2022-11-16 11:30:29,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:30,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:30,866 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:30,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:30:30,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041826620] [2022-11-16 11:30:30,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041826620] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:30,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:30:30,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 11:30:30,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592687496] [2022-11-16 11:30:30,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:30,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:30:30,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:30:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:30:30,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:30:30,870 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:31,053 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 11:30:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:30:31,054 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2022-11-16 11:30:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:31,054 INFO L225 Difference]: With dead ends: 19 [2022-11-16 11:30:31,055 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 11:30:31,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:30:31,056 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:31,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 25 Unchecked, 0.0s Time] [2022-11-16 11:30:31,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 11:30:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 11:30:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 11:30:31,063 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 11:30:31,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:31,064 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 11:30:31,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 11:30:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 11:30:31,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:31,065 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 11:30:31,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:31,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:31,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:31,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 11:30:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:30:31,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535906849] [2022-11-16 11:30:31,279 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 11:30:31,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:31,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:30:31,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:30:31,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 11:30:31,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 11:30:31,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:30:31,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-16 11:30:31,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:31,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:30:31,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 11:30:31,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:30:31,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535906849] [2022-11-16 11:30:31,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535906849] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:31,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:31,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-16 11:30:31,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797634201] [2022-11-16 11:30:31,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:31,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:30:31,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:31,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:31,894 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:31,926 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-16 11:30:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:30:31,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 11:30:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:31,928 INFO L225 Difference]: With dead ends: 15 [2022-11-16 11:30:31,928 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:30:31,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:30:31,937 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:31,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-11-16 11:30:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:30:31,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:30:31,941 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) [2022-11-16 11:30:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:30:31,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-16 11:30:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:31,942 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:30:31,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:30:31,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:30:31,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:30:31,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:32,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:30:32,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:30:32,272 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:30:32,272 INFO L895 garLoopResultBuilder]: At program point L199(lines 22 200) the Hoare annotation is: false [2022-11-16 11:30:32,273 INFO L895 garLoopResultBuilder]: At program point L71-2(lines 71 198) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~state_17~0#1| |ULTIMATE.start_main_~state_15~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_17~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|) (= |ULTIMATE.start_main_~state_20~0#1| |ULTIMATE.start_main_~state_17~0#1|)) (and (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_0~0#1_10| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |ULTIMATE.start_main_~state_24~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |ULTIMATE.start_main_~state_20~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~state_15~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_31_arg_0~0#1_10|)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (_ bv0 8))))) [2022-11-16 11:30:32,273 INFO L899 garLoopResultBuilder]: For program point L71-3(lines 71 198) no Hoare annotation was computed. [2022-11-16 11:30:32,273 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:30:32,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:30:32,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:30:32,273 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 11:30:32,274 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 11:30:32,274 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 11:30:32,274 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 11:30:32,277 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 11:30:32,279 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:30:32,287 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] [2022-11-16 11:30:32,294 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] [2022-11-16 11:30:32,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:30:32 BoogieIcfgContainer [2022-11-16 11:30:32,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:30:32,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:30:32,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:30:32,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:30:32,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:27" (3/4) ... [2022-11-16 11:30:32,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:30:32,321 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 11:30:32,322 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 11:30:32,322 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:30:32,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:30:32,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:30:32,368 INFO L158 Benchmark]: Toolchain (without parser) took 5909.09ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 45.2MB in the beginning and 117.3MB in the end (delta: -72.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:32,368 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:30:32,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.69ms. Allocated memory is still 79.7MB. Free memory was 45.0MB in the beginning and 62.0MB in the end (delta: -17.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,369 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.65ms. Allocated memory is still 79.7MB. Free memory was 62.0MB in the beginning and 59.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,369 INFO L158 Benchmark]: Boogie Preprocessor took 30.98ms. Allocated memory is still 79.7MB. Free memory was 59.6MB in the beginning and 57.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,369 INFO L158 Benchmark]: RCFGBuilder took 570.81ms. Allocated memory is still 79.7MB. Free memory was 57.9MB in the beginning and 41.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,370 INFO L158 Benchmark]: TraceAbstraction took 4838.38ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 41.1MB in the beginning and 122.5MB in the end (delta: -81.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,370 INFO L158 Benchmark]: Witness Printer took 65.27ms. Allocated memory is still 142.6MB. Free memory was 121.5MB in the beginning and 117.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:30:32,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.69ms. Allocated memory is still 79.7MB. Free memory was 45.0MB in the beginning and 62.0MB in the end (delta: -17.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.65ms. Allocated memory is still 79.7MB. Free memory was 62.0MB in the beginning and 59.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.98ms. Allocated memory is still 79.7MB. Free memory was 59.6MB in the beginning and 57.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.81ms. Allocated memory is still 79.7MB. Free memory was 57.9MB in the beginning and 41.8MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4838.38ms. Allocated memory was 79.7MB in the beginning and 142.6MB in the end (delta: 62.9MB). Free memory was 41.1MB in the beginning and 122.5MB in the end (delta: -81.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. * Witness Printer took 65.27ms. Allocated memory is still 142.6MB. Free memory was 121.5MB in the beginning and 117.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 38 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 18 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 25, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 55 HoareAnnotationTreeSize, 2 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 474 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 18 QuantifiedInterpolants, 2163 SizeOfPredicates, 318 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 294 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 27/48 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: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant [2022-11-16 11:30:32,378 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] [2022-11-16 11:30:32,378 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_31_arg_0~0#1_10,QUANTIFIED] Derived loop invariant: (((state_17 == state_15 && 0bv8 == state_17) && 1bv8 == mask_SORT_3) && state_20 == state_17) || (!(cond == 0bv32) && (forall v_ULTIMATE.start_main_~var_31_arg_0~0#1_10 : bv8 :: ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(state_24), ~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(state_17), ~zero_extendFrom8To32(state_15))[7:0]))[7:0]))[7:0]))[7:0]))[7:0]), ~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_31_arg_0~0#1_10))[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == 0bv8)) RESULT: Ultimate proved your program to be correct! [2022-11-16 11:30:32,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9abdfd-7c0b-400e-89b0-8baf810996cc/bin/uautomizer-tPACEb0tL8/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