./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.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_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 58655e839e4406287ba5c108c53173536a6728ac7e002b9896f2922b7a3c815d --- 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 12:33:31,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:33:31,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:33:31,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:33:31,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:33:31,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:33:31,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:33:31,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:33:31,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:33:31,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:33:31,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:33:31,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:33:31,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:33:31,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:33:31,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:33:31,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:33:31,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:33:31,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:33:31,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:33:31,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:33:31,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:33:31,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:33:31,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:33:31,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:33:31,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:33:31,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:33:31,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:33:31,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:33:31,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:33:31,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:33:31,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:33:31,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:33:31,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:33:31,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:33:31,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:33:31,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:33:31,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:33:31,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:33:31,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:33:31,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:33:31,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:33:31,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:33:31,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:33:31,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:33:31,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:33:31,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:33:31,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:33:31,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:33:31,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:33:31,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:33:31,234 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:33:31,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:33:31,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:33:31,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:33:31,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:33:31,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:33:31,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:33:31,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:33:31,236 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:33:31,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:33:31,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:33:31,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:33:31,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:33:31,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:31,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:33:31,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:33:31,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:33:31,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:33:31,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:33:31,240 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:33:31,240 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:33:31,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:33:31,241 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58655e839e4406287ba5c108c53173536a6728ac7e002b9896f2922b7a3c815d [2022-11-16 12:33:31,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:33:31,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:33:31,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:33:31,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:33:31,548 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:33:31,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:31,618 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/8c2580c04/2f09e069d3af422ea00e5d4450d336b3/FLAGa4aa2c262 [2022-11-16 12:33:32,257 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:33:32,257 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:32,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/8c2580c04/2f09e069d3af422ea00e5d4450d336b3/FLAGa4aa2c262 [2022-11-16 12:33:32,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/8c2580c04/2f09e069d3af422ea00e5d4450d336b3 [2022-11-16 12:33:32,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:33:32,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:33:32,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:32,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:33:32,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:33:32,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:32" (1/1) ... [2022-11-16 12:33:32,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150587eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:32, skipping insertion in model container [2022-11-16 12:33:32,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:32" (1/1) ... [2022-11-16 12:33:32,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:33:32,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:33:32,860 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1107,1120] [2022-11-16 12:33:33,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:33,232 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:33:33,249 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1107,1120] [2022-11-16 12:33:33,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:33,418 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:33:33,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33 WrapperNode [2022-11-16 12:33:33,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:33,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:33,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:33:33,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:33:33,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,667 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2937 [2022-11-16 12:33:33,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:33,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:33:33,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:33:33,669 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:33:33,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:33:33,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:33:33,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:33:33,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:33:33,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (1/1) ... [2022-11-16 12:33:33,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:33,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:33:33,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:33:33,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:33:33,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:33:33,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:33:34,382 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:33:34,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:33:37,123 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:33:37,135 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:33:37,135 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:33:37,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:37 BoogieIcfgContainer [2022-11-16 12:33:37,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:33:37,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:33:37,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:33:37,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:33:37,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:32" (1/3) ... [2022-11-16 12:33:37,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5c3186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:37, skipping insertion in model container [2022-11-16 12:33:37,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:33" (2/3) ... [2022-11-16 12:33:37,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5c3186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:37, skipping insertion in model container [2022-11-16 12:33:37,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:37" (3/3) ... [2022-11-16 12:33:37,148 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:37,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:33:37,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:33:37,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:33:37,249 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;@4b9c1e81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:33:37,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:33:37,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 491 states, 489 states have (on average 1.6625766871165644) internal successors, (813), 490 states have internal predecessors, (813), 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 12:33:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 12:33:37,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:33:37,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:37,263 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:33:37,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1428179117, now seen corresponding path program 1 times [2022-11-16 12:33:37,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:37,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127186498] [2022-11-16 12:33:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:37,961 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 12:33:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:37,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127186498] [2022-11-16 12:33:37,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127186498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:37,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:37,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:33:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417732527] [2022-11-16 12:33:37,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:37,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:33:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:33:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:33:38,004 INFO L87 Difference]: Start difference. First operand has 491 states, 489 states have (on average 1.6625766871165644) internal successors, (813), 490 states have internal predecessors, (813), 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 3.25) internal successors, (13), 4 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 12:33:38,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:33:38,213 INFO L93 Difference]: Finished difference Result 1471 states and 2447 transitions. [2022-11-16 12:33:38,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:33:38,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 13 [2022-11-16 12:33:38,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:33:38,242 INFO L225 Difference]: With dead ends: 1471 [2022-11-16 12:33:38,242 INFO L226 Difference]: Without dead ends: 982 [2022-11-16 12:33:38,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:33:38,249 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 2397 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:33:38,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 1663 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:33:38,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-11-16 12:33:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 489. [2022-11-16 12:33:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.6577868852459017) internal successors, (809), 488 states have internal predecessors, (809), 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 12:33:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 809 transitions. [2022-11-16 12:33:38,332 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 809 transitions. Word has length 13 [2022-11-16 12:33:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:33:38,333 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 809 transitions. [2022-11-16 12:33:38,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 12:33:38,333 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 809 transitions. [2022-11-16 12:33:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:33:38,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:33:38,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:38,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:33:38,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:33:38,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1325604663, now seen corresponding path program 1 times [2022-11-16 12:33:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:38,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614143948] [2022-11-16 12:33:38,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:33:38,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:33:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:33:38,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:33:38,967 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:33:38,969 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:33:38,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:33:38,979 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:33:38,985 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:33:39,056 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 12:33:39,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:33:39 BoogieIcfgContainer [2022-11-16 12:33:39,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:33:39,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:33:39,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:33:39,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:33:39,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:37" (3/4) ... [2022-11-16 12:33:39,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:33:39,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:33:39,090 INFO L158 Benchmark]: Toolchain (without parser) took 6620.65ms. Allocated memory was 130.0MB in the beginning and 266.3MB in the end (delta: 136.3MB). Free memory was 92.1MB in the beginning and 152.5MB in the end (delta: -60.4MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,090 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:33:39,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.63ms. Allocated memory is still 130.0MB. Free memory was 91.9MB in the beginning and 54.5MB in the end (delta: 37.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 245.15ms. Allocated memory is still 130.0MB. Free memory was 54.5MB in the beginning and 82.3MB in the end (delta: -27.8MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,102 INFO L158 Benchmark]: Boogie Preprocessor took 156.53ms. Allocated memory is still 130.0MB. Free memory was 82.3MB in the beginning and 69.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,104 INFO L158 Benchmark]: RCFGBuilder took 3312.53ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 69.0MB in the beginning and 97.8MB in the end (delta: -28.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,104 INFO L158 Benchmark]: TraceAbstraction took 1943.90ms. Allocated memory was 205.5MB in the beginning and 266.3MB in the end (delta: 60.8MB). Free memory was 96.8MB in the beginning and 153.6MB in the end (delta: -56.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,107 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 266.3MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:33:39,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.63ms. Allocated memory is still 130.0MB. Free memory was 91.9MB in the beginning and 54.5MB in the end (delta: 37.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 245.15ms. Allocated memory is still 130.0MB. Free memory was 54.5MB in the beginning and 82.3MB in the end (delta: -27.8MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 156.53ms. Allocated memory is still 130.0MB. Free memory was 82.3MB in the beginning and 69.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3312.53ms. Allocated memory was 130.0MB in the beginning and 205.5MB in the end (delta: 75.5MB). Free memory was 69.0MB in the beginning and 97.8MB in the end (delta: -28.8MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1943.90ms. Allocated memory was 205.5MB in the beginning and 266.3MB in the end (delta: 60.8MB). Free memory was 96.8MB in the beginning and 153.6MB in the end (delta: -56.8MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 266.3MB. Free memory was 153.6MB in the beginning and 152.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 bitwiseOr at line 222, overapproximation of bitwiseComplement at line 224, overapproximation of bitwiseAnd at line 227. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 12); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (12 - 1); [L28] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 1); [L29] const SORT_8 msb_SORT_8 = (SORT_8)1 << (1 - 1); [L31] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 4); [L32] const SORT_13 msb_SORT_13 = (SORT_13)1 << (4 - 1); [L34] const SORT_22 mask_SORT_22 = (SORT_22)-1 >> (sizeof(SORT_22) * 8 - 3); [L35] const SORT_22 msb_SORT_22 = (SORT_22)1 << (3 - 1); [L37] const SORT_310 mask_SORT_310 = (SORT_310)-1 >> (sizeof(SORT_310) * 8 - 2); [L38] const SORT_310 msb_SORT_310 = (SORT_310)1 << (2 - 1); [L40] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 5); [L41] const SORT_314 msb_SORT_314 = (SORT_314)1 << (5 - 1); [L43] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 6); [L44] const SORT_316 msb_SORT_316 = (SORT_316)1 << (6 - 1); [L46] const SORT_318 mask_SORT_318 = (SORT_318)-1 >> (sizeof(SORT_318) * 8 - 7); [L47] const SORT_318 msb_SORT_318 = (SORT_318)1 << (7 - 1); [L49] const SORT_320 mask_SORT_320 = (SORT_320)-1 >> (sizeof(SORT_320) * 8 - 8); [L50] const SORT_320 msb_SORT_320 = (SORT_320)1 << (8 - 1); [L52] const SORT_322 mask_SORT_322 = (SORT_322)-1 >> (sizeof(SORT_322) * 8 - 9); [L53] const SORT_322 msb_SORT_322 = (SORT_322)1 << (9 - 1); [L55] const SORT_324 mask_SORT_324 = (SORT_324)-1 >> (sizeof(SORT_324) * 8 - 10); [L56] const SORT_324 msb_SORT_324 = (SORT_324)1 << (10 - 1); [L58] const SORT_326 mask_SORT_326 = (SORT_326)-1 >> (sizeof(SORT_326) * 8 - 11); [L59] const SORT_326 msb_SORT_326 = (SORT_326)1 << (11 - 1); [L61] const SORT_8 var_18 = 0; [L62] const SORT_22 var_23 = 0; [L63] const SORT_22 var_26 = 4; [L64] const SORT_22 var_29 = 5; [L65] const SORT_1 var_32 = 0; [L66] const SORT_1 var_35 = 2730; [L67] const SORT_8 var_42 = 1; [L68] const SORT_13 var_65 = 2; [L69] const SORT_13 var_70 = 9; [L70] const SORT_13 var_78 = 15; [L71] const SORT_13 var_83 = 1; [L72] const SORT_13 var_85 = 3; [L73] const SORT_13 var_88 = 5; [L74] const SORT_13 var_91 = 7; [L75] const SORT_13 var_94 = 11; [L76] const SORT_13 var_118 = 8; [L77] const SORT_13 var_122 = 10; [L78] const SORT_13 var_126 = 13; [L79] const SORT_13 var_137 = 4; [L80] const SORT_13 var_139 = 12; [L81] const SORT_13 var_142 = 14; [L82] const SORT_13 var_148 = 6; [L83] const SORT_13 var_175 = 0; [L84] const SORT_22 var_221 = 1; [L85] const SORT_1 var_250 = 4095; [L86] const SORT_1 var_580 = 1; [L87] const SORT_326 var_598 = 0; [L89] SORT_1 input_2; [L90] SORT_1 input_3; [L91] SORT_1 input_4; [L92] SORT_1 input_5; [L93] SORT_1 input_6; [L94] SORT_1 input_7; [L95] SORT_8 input_9; [L96] SORT_8 input_10; [L97] SORT_8 input_11; [L98] SORT_1 input_12; [L99] SORT_13 input_14; [L100] SORT_8 input_15; [L101] SORT_8 input_16; [L102] SORT_8 input_17; [L103] SORT_1 input_217; [L104] SORT_1 input_237; [L105] SORT_22 input_240; [L107] SORT_8 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_8; [L108] SORT_22 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_22; [L109] SORT_1 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L110] SORT_1 state_38 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L111] SORT_1 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L112] SORT_1 state_44 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L113] SORT_1 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L114] SORT_1 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L115] SORT_1 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L116] SORT_1 state_67 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L117] SORT_22 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_22; [L118] SORT_1 state_135 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L120] SORT_8 init_20_arg_1 = var_18; [L121] state_19 = init_20_arg_1 [L122] SORT_22 init_25_arg_1 = var_23; [L123] state_24 = init_25_arg_1 [L124] SORT_1 init_34_arg_1 = var_32; [L125] state_33 = init_34_arg_1 [L126] SORT_1 init_39_arg_1 = var_32; [L127] state_38 = init_39_arg_1 [L128] SORT_1 init_41_arg_1 = var_32; [L129] state_40 = init_41_arg_1 [L130] SORT_1 init_45_arg_1 = var_32; [L131] state_44 = init_45_arg_1 [L132] SORT_1 init_47_arg_1 = var_32; [L133] state_46 = init_47_arg_1 [L134] SORT_1 init_51_arg_1 = var_32; [L135] state_50 = init_51_arg_1 [L136] SORT_1 init_53_arg_1 = var_32; [L137] state_52 = init_53_arg_1 [L138] SORT_1 init_68_arg_1 = var_32; [L139] state_67 = init_68_arg_1 [L140] SORT_22 init_107_arg_1 = var_23; [L141] state_106 = init_107_arg_1 [L142] SORT_1 init_136_arg_1 = var_32; [L143] state_135 = init_136_arg_1 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_29=5, var_32=0, var_35=2730, var_42=1, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L146] input_2 = __VERIFIER_nondet_ushort() [L147] input_3 = __VERIFIER_nondet_ushort() [L148] input_4 = __VERIFIER_nondet_ushort() [L149] input_5 = __VERIFIER_nondet_ushort() [L150] input_6 = __VERIFIER_nondet_ushort() [L151] input_7 = __VERIFIER_nondet_ushort() [L152] input_9 = __VERIFIER_nondet_uchar() [L153] input_10 = __VERIFIER_nondet_uchar() [L154] input_11 = __VERIFIER_nondet_uchar() [L155] input_11 = input_11 & mask_SORT_8 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_2=4103, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_29=5, var_32=0, var_35=2730, var_42=1, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L156] input_12 = __VERIFIER_nondet_ushort() [L157] input_14 = __VERIFIER_nondet_uchar() [L158] input_14 = input_14 & mask_SORT_13 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_12=4108, input_14=0, input_2=4103, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_29=5, var_32=0, var_35=2730, var_42=1, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L159] input_15 = __VERIFIER_nondet_uchar() [L160] input_16 = __VERIFIER_nondet_uchar() [L161] input_17 = __VERIFIER_nondet_uchar() [L162] input_217 = __VERIFIER_nondet_ushort() [L163] input_237 = __VERIFIER_nondet_ushort() [L164] input_240 = __VERIFIER_nondet_uchar() [L167] SORT_8 var_21_arg_0 = state_19; [L168] SORT_8 var_21_arg_1 = var_18; [L169] SORT_8 var_21 = var_21_arg_0 == var_21_arg_1; [L170] SORT_22 var_27_arg_0 = state_24; [L171] SORT_22 var_27_arg_1 = var_26; [L172] SORT_8 var_27 = var_27_arg_0 == var_27_arg_1; [L173] SORT_8 var_28_arg_0 = var_21; [L174] SORT_8 var_28_arg_1 = var_27; [L175] SORT_8 var_28 = var_28_arg_0 | var_28_arg_1; [L176] SORT_22 var_30_arg_0 = state_24; [L177] SORT_22 var_30_arg_1 = var_29; [L178] SORT_8 var_30 = var_30_arg_0 == var_30_arg_1; [L179] SORT_8 var_31_arg_0 = var_28; [L180] SORT_8 var_31_arg_1 = var_30; [L181] SORT_8 var_31 = var_31_arg_0 | var_31_arg_1; [L182] SORT_1 var_36_arg_0 = state_33; [L183] SORT_1 var_36_arg_1 = var_35; [L184] SORT_8 var_36 = var_36_arg_0 != var_36_arg_1; [L185] SORT_8 var_37_arg_0 = var_31; [L186] SORT_8 var_37_arg_1 = var_36; [L187] SORT_8 var_37 = var_37_arg_0 | var_37_arg_1; [L188] SORT_8 var_55_arg_0 = var_42; [L189] SORT_1 var_55_arg_1 = input_7; [L190] SORT_1 var_55_arg_2 = input_6; [L191] SORT_1 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L192] SORT_8 var_54_arg_0 = var_42; [L193] SORT_1 var_54_arg_1 = state_52; [L194] SORT_1 var_54_arg_2 = state_50; [L195] SORT_1 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L196] SORT_8 var_56_arg_0 = var_18; [L197] SORT_1 var_56_arg_1 = var_55; [L198] SORT_1 var_56_arg_2 = var_54; [L199] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L200] SORT_8 var_48_arg_0 = var_42; [L201] SORT_1 var_48_arg_1 = state_46; [L202] SORT_1 var_48_arg_2 = state_44; [L203] SORT_1 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L204] SORT_8 var_43_arg_0 = var_42; [L205] SORT_1 var_43_arg_1 = state_40; [L206] SORT_1 var_43_arg_2 = state_38; [L207] SORT_1 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L208] SORT_8 var_49_arg_0 = var_18; [L209] SORT_1 var_49_arg_1 = var_48; [L210] SORT_1 var_49_arg_2 = var_43; [L211] SORT_1 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L212] SORT_8 var_57_arg_0 = var_42; [L213] SORT_1 var_57_arg_1 = var_56; [L214] SORT_1 var_57_arg_2 = var_49; [L215] SORT_1 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_12=4108, input_14=0, input_15=8, input_16=5, input_17=6, input_2=4103, input_217=4105, input_237=4097, input_240=11, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_27=0, var_27_arg_0=0, var_27_arg_1=4, var_28=1, var_28_arg_0=1, var_28_arg_1=0, var_29=5, var_30=0, var_30_arg_0=0, var_30_arg_1=5, var_31=1, var_31_arg_0=1, var_31_arg_1=0, var_32=0, var_35=2730, var_36=1, var_36_arg_0=0, var_36_arg_1=2730, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_42=1, var_43=0, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=0, var_54=0, var_54_arg_0=1, var_54_arg_1=0, var_54_arg_2=0, var_55=0, var_55_arg_0=1, var_55_arg_1=0, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_57=0, var_57_arg_0=1, var_57_arg_1=0, var_57_arg_2=0, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L216] var_57 = var_57 & mask_SORT_1 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_12=4108, input_14=0, input_15=8, input_16=5, input_17=6, input_2=4103, input_217=4105, input_237=4097, input_240=11, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_27=0, var_27_arg_0=0, var_27_arg_1=4, var_28=1, var_28_arg_0=1, var_28_arg_1=0, var_29=5, var_30=0, var_30_arg_0=0, var_30_arg_1=5, var_31=1, var_31_arg_0=1, var_31_arg_1=0, var_32=0, var_35=2730, var_36=1, var_36_arg_0=0, var_36_arg_1=2730, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_42=1, var_43=0, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=0, var_54=0, var_54_arg_0=1, var_54_arg_1=0, var_54_arg_2=0, var_55=0, var_55_arg_0=1, var_55_arg_1=0, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_57=0, var_57_arg_0=1, var_57_arg_1=0, var_57_arg_2=0, var_580=1, var_598=0, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L217] SORT_1 var_58_arg_0 = var_57; [L218] SORT_1 var_58_arg_1 = var_35; [L219] SORT_8 var_58 = var_58_arg_0 == var_58_arg_1; [L220] SORT_8 var_59_arg_0 = var_37; [L221] SORT_8 var_59_arg_1 = var_58; [L222] SORT_8 var_59 = var_59_arg_0 | var_59_arg_1; [L223] SORT_8 var_62_arg_0 = var_59; [L224] SORT_8 var_62 = ~var_62_arg_0; [L225] SORT_8 var_63_arg_0 = var_42; [L226] SORT_8 var_63_arg_1 = var_62; [L227] SORT_8 var_63 = var_63_arg_0 & var_63_arg_1; VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_12=4108, input_14=0, input_15=8, input_16=5, input_17=6, input_2=4103, input_217=4105, input_237=4097, input_240=11, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_27=0, var_27_arg_0=0, var_27_arg_1=4, var_28=1, var_28_arg_0=1, var_28_arg_1=0, var_29=5, var_30=0, var_30_arg_0=0, var_30_arg_1=5, var_31=1, var_31_arg_0=1, var_31_arg_1=0, var_32=0, var_35=2730, var_36=1, var_36_arg_0=0, var_36_arg_1=2730, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_42=1, var_43=0, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=0, var_54=0, var_54_arg_0=1, var_54_arg_1=0, var_54_arg_2=0, var_55=0, var_55_arg_0=1, var_55_arg_1=0, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_57=0, var_57_arg_0=1, var_57_arg_1=0, var_57_arg_2=0, var_58=0, var_580=1, var_58_arg_0=0, var_58_arg_1=2730, var_59=1, var_598=0, var_59_arg_0=1, var_59_arg_1=0, var_62=255, var_62_arg_0=1, var_63=1, var_63_arg_0=1, var_63_arg_1=255, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L228] var_63 = var_63 & mask_SORT_8 VAL [init_107_arg_1=0, init_136_arg_1=0, init_20_arg_1=0, init_25_arg_1=0, init_34_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_68_arg_1=0, input_10=2, input_11=0, input_12=4108, input_14=0, input_15=8, input_16=5, input_17=6, input_2=4103, input_217=4105, input_237=4097, input_240=11, input_3=4106, input_4=4099, input_5=4096, input_6=0, input_7=0, input_9=4, mask_SORT_1=4095, mask_SORT_13=15, mask_SORT_22=7, mask_SORT_310=3, mask_SORT_314=31, mask_SORT_316=63, mask_SORT_318=127, mask_SORT_320=255, mask_SORT_322=511, mask_SORT_324=1023, mask_SORT_326=2047, mask_SORT_8=1, msb_SORT_1=2048, msb_SORT_13=8, msb_SORT_22=4, msb_SORT_310=2, msb_SORT_314=16, msb_SORT_316=32, msb_SORT_318=64, msb_SORT_320=128, msb_SORT_322=256, msb_SORT_324=512, msb_SORT_326=1024, msb_SORT_8=1, state_106=0, state_135=0, state_19=0, state_24=0, state_33=0, state_38=0, state_40=0, state_44=0, state_46=0, state_50=0, state_52=0, state_67=0, var_118=8, var_122=10, var_126=13, var_137=4, var_139=12, var_142=14, var_148=6, var_175=0, var_18=0, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_221=1, var_23=0, var_250=4095, var_26=4, var_27=0, var_27_arg_0=0, var_27_arg_1=4, var_28=1, var_28_arg_0=1, var_28_arg_1=0, var_29=5, var_30=0, var_30_arg_0=0, var_30_arg_1=5, var_31=1, var_31_arg_0=1, var_31_arg_1=0, var_32=0, var_35=2730, var_36=1, var_36_arg_0=0, var_36_arg_1=2730, var_37=1, var_37_arg_0=1, var_37_arg_1=1, var_42=1, var_43=0, var_43_arg_0=1, var_43_arg_1=0, var_43_arg_2=0, var_48=0, var_48_arg_0=1, var_48_arg_1=0, var_48_arg_2=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_49_arg_2=0, var_54=0, var_54_arg_0=1, var_54_arg_1=0, var_54_arg_2=0, var_55=0, var_55_arg_0=1, var_55_arg_1=0, var_55_arg_2=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_57=0, var_57_arg_0=1, var_57_arg_1=0, var_57_arg_2=0, var_58=0, var_580=1, var_58_arg_0=0, var_58_arg_1=2730, var_59=1, var_598=0, var_59_arg_0=1, var_59_arg_1=0, var_62=255, var_62_arg_0=1, var_63=1, var_63_arg_0=1, var_63_arg_1=255, var_65=2, var_70=9, var_78=15, var_83=1, var_85=3, var_88=5, var_91=7, var_94=11] [L229] SORT_8 bad_64_arg_0 = var_63; [L230] CALL __VERIFIER_assert(!(bad_64_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, 491 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2397 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2397 mSDsluCounter, 1663 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 838 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 825 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 493 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 12:33:39,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 58655e839e4406287ba5c108c53173536a6728ac7e002b9896f2922b7a3c815d --- 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 12:33:41,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:33:41,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:33:41,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:33:41,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:33:41,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:33:41,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:33:41,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:33:41,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:33:41,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:33:41,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:33:41,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:33:41,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:33:41,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:33:41,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:33:41,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:33:41,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:33:41,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:33:41,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:33:41,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:33:41,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:33:41,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:33:41,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:33:41,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:33:41,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:33:41,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:33:41,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:33:41,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:33:41,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:33:41,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:33:41,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:33:41,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:33:41,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:33:41,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:33:41,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:33:41,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:33:41,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:33:41,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:33:41,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:33:41,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:33:41,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:33:41,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:33:41,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:33:41,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:33:41,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:33:41,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:33:41,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:33:41,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:33:41,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:33:41,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:33:41,662 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:33:41,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:33:41,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:33:41,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:33:41,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:33:41,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:33:41,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:33:41,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:33:41,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:33:41,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:33:41,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:33:41,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:33:41,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:33:41,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:33:41,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:33:41,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:41,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:33:41,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:33:41,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:33:41,667 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:33:41,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:33:41,668 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:33:41,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:33:41,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:33:41,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:33:41,669 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58655e839e4406287ba5c108c53173536a6728ac7e002b9896f2922b7a3c815d [2022-11-16 12:33:42,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:33:42,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:33:42,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:33:42,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:33:42,101 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:33:42,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:42,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/3c78fe550/8e2dc11c9434457088a6edbe18061912/FLAG45102cefd [2022-11-16 12:33:42,823 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:33:42,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:42,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/3c78fe550/8e2dc11c9434457088a6edbe18061912/FLAG45102cefd [2022-11-16 12:33:43,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/data/3c78fe550/8e2dc11c9434457088a6edbe18061912 [2022-11-16 12:33:43,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:33:43,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:33:43,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:43,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:33:43,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:33:43,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:43" (1/1) ... [2022-11-16 12:33:43,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40563d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:43, skipping insertion in model container [2022-11-16 12:33:43,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:43" (1/1) ... [2022-11-16 12:33:43,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:33:43,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:33:43,421 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1107,1120] [2022-11-16 12:33:43,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:43,903 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:33:43,914 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_4f277d34-86b4-4f7b-b83f-ff59254e7562/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p4.c[1107,1120] [2022-11-16 12:33:44,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:44,097 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:33:44,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44 WrapperNode [2022-11-16 12:33:44,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:44,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:44,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:33:44,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:33:44,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,288 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1817 [2022-11-16 12:33:44,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:44,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:33:44,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:33:44,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:33:44,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:33:44,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:33:44,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:33:44,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:33:44,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (1/1) ... [2022-11-16 12:33:44,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:44,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:33:44,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:33:44,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:33:44,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:33:44,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:33:44,981 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:33:44,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:33:48,578 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:33:48,585 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:33:48,586 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:33:48,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:48 BoogieIcfgContainer [2022-11-16 12:33:48,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:33:48,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:33:48,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:33:48,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:33:48,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:43" (1/3) ... [2022-11-16 12:33:48,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebefd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:48, skipping insertion in model container [2022-11-16 12:33:48,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:44" (2/3) ... [2022-11-16 12:33:48,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebefd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:48, skipping insertion in model container [2022-11-16 12:33:48,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:48" (3/3) ... [2022-11-16 12:33:48,601 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p4.c [2022-11-16 12:33:48,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:33:48,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:33:48,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:33:48,704 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@58577712, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:33:48,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:33:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:33:48,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:33:48,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:33:48,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:33:48,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 12:33:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:33:48,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122449190] [2022-11-16 12:33:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:48,739 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 12:33:48,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:33:48,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:48,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:49,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:33:49,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:33:49,445 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 12:33:49,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:33:49,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:33:49,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122449190] [2022-11-16 12:33:49,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122449190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:49,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:49,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:33:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604267711] [2022-11-16 12:33:49,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:49,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:33:49,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:33:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:33:49,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:33:49,488 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 12:33:49,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:33:49,760 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 12:33:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:33:49,763 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 12:33:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:33:49,770 INFO L225 Difference]: With dead ends: 20 [2022-11-16 12:33:49,770 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 12:33:49,773 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 12:33:49,777 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:33:49,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:33:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 12:33:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 12:33:49,815 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 12:33:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:33:49,817 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 12:33:49,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:33:49,817 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:33:49,818 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 12:33:49,818 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:33:49,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:33:49,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:33:49,818 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:49,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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)] Ended with exit code 0 [2022-11-16 12:33:50,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:50,034 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:33:50,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:50,034 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 12:33:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:33:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032244957] [2022-11-16 12:33:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:50,038 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 12:33:50,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:33:50,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:50,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:51,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-16 12:33:51,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:33:51,395 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 12:33:51,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:33:52,206 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 12:33:52,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:33:52,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032244957] [2022-11-16 12:33:52,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032244957] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:33:52,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:33:52,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:33:52,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741313908] [2022-11-16 12:33:52,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:33:52,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:33:52,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:33:52,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:33:52,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:33:52,216 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 12:33:52,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:33:52,881 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 12:33:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:33:52,883 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 12:33:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:33:52,884 INFO L225 Difference]: With dead ends: 16 [2022-11-16 12:33:52,884 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 12:33:52,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:33:52,886 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:33:52,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.6s Time] [2022-11-16 12:33:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 12:33:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 12:33:52,891 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 12:33:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 12:33:52,891 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 12:33:52,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:33:52,892 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 12:33:52,892 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 12:33:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 12:33:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:33:52,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:33:52,893 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 12:33:52,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:53,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:53,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:33:53,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:53,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 12:33:53,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:33:53,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902043939] [2022-11-16 12:33:53,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:33:53,120 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 12:33:53,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:33:53,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:53,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:33:54,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:33:54,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:33:54,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 3186 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-16 12:33:54,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:33:55,390 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 12:33:55,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:34:06,158 WARN L233 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 208 DAG size of output: 182 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:34:06,348 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 12:34:06,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:34:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902043939] [2022-11-16 12:34:06,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902043939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:34:06,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:34:06,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 12:34:06,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100018313] [2022-11-16 12:34:06,355 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:34:06,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:34:06,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:34:06,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:34:06,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:34:06,358 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 12:34:06,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:34:06,735 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 12:34:06,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:34:06,737 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 12:34:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:34:06,737 INFO L225 Difference]: With dead ends: 19 [2022-11-16 12:34:06,737 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:34:06,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:34:06,739 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:34:06,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 16 Unchecked, 0.2s Time] [2022-11-16 12:34:06,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:34:06,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 12:34:06,745 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 12:34:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 12:34:06,746 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 12:34:06,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:34:06,746 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 12:34:06,747 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 12:34:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 12:34:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:34:06,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:34:06,748 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 12:34:06,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:34:06,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:34:06,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:34:06,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:34:06,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 12:34:06,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:34:06,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454523895] [2022-11-16 12:34:06,973 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:34:06,974 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 12:34:06,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:34:06,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:34:06,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f277d34-86b4-4f7b-b83f-ff59254e7562/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 12:34:08,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 12:34:08,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:34:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 3186 conjuncts, 269 conjunts are in the unsatisfiable core [2022-11-16 12:34:08,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:34:28,147 WARN L233 SmtUtils]: Spent 12.21s on a formula simplification. DAG size of input: 444 DAG size of output: 361 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:34:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:34:28,736 INFO L328 TraceCheckSpWp]: Computing backward predicates...