./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8 --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 4f73fcb602ed80b8e51075c80825f775ed441d29f316457a0aa85fc6e1e72b5c --- 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-2329fc7 [2022-12-13 11:06:30,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:06:30,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:06:30,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:06:30,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:06:30,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:06:30,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:06:30,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:06:30,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:06:30,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:06:30,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:06:30,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:06:30,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:06:30,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:06:30,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:06:30,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:06:30,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:06:30,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:06:30,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:06:30,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:06:30,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:06:30,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:06:30,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:06:30,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:06:30,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:06:30,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:06:30,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:06:30,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:06:30,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:06:30,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:06:30,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:06:30,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:06:30,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:06:30,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:06:30,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:06:30,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:06:30,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:06:30,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:06:30,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:06:30,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:06:30,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:06:30,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:06:30,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:06:30,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:06:30,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:06:30,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:06:30,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:06:30,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:06:30,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:06:30,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:06:30,490 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:06:30,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:06:30,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:06:30,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:30,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:06:30,492 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:06:30,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:06:30,493 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:06:30,493 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f73fcb602ed80b8e51075c80825f775ed441d29f316457a0aa85fc6e1e72b5c [2022-12-13 11:06:30,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:06:30,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:06:30,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:06:30,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:06:30,693 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:06:30,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:06:33,326 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:06:33,595 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:06:33,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:06:33,609 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/36186e391/e6d688cb30c24392ae572fdf47708c96/FLAG96ddfe691 [2022-12-13 11:06:33,623 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/36186e391/e6d688cb30c24392ae572fdf47708c96 [2022-12-13 11:06:33,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:06:33,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:06:33,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:33,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:06:33,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:06:33,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:33" (1/1) ... [2022-12-13 11:06:33,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a7ed33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:33, skipping insertion in model container [2022-12-13 11:06:33,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:33" (1/1) ... [2022-12-13 11:06:33,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:06:33,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:06:33,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c[1107,1120] [2022-12-13 11:06:34,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:34,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:06:34,013 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c[1107,1120] [2022-12-13 11:06:34,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:34,120 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:06:34,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34 WrapperNode [2022-12-13 11:06:34,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:34,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:34,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:06:34,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:06:34,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,228 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1800 [2022-12-13 11:06:34,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:34,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:06:34,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:06:34,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:06:34,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:06:34,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:06:34,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:06:34,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:06:34,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (1/1) ... [2022-12-13 11:06:34,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:34,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:34,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:06:34,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:06:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:06:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:06:34,617 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:06:34,618 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:09:02,893 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:09:02,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:09:02,898 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:09:02,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:09:02 BoogieIcfgContainer [2022-12-13 11:09:02,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:09:02,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:09:02,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:09:02,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:09:02,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:06:33" (1/3) ... [2022-12-13 11:09:02,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699febca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:09:02, skipping insertion in model container [2022-12-13 11:09:02,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:34" (2/3) ... [2022-12-13 11:09:02,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699febca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:09:02, skipping insertion in model container [2022-12-13 11:09:02,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:09:02" (3/3) ... [2022-12-13 11:09:02,906 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:09:02,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:09:02,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:09:02,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:09:02,955 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;@134f11bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:09:02,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:09:02,959 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) [2022-12-13 11:09:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:09:02,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:09:02,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:09:02,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:09:02,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:09:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:09:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:09:02,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582936188] [2022-12-13 11:09:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:09:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:09:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:09:03,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:09:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:09:03,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:09:03,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:09:03,277 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:09:03,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:09:03,281 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:09:03,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:09:03,299 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 11:09:03,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:09:03 BoogieIcfgContainer [2022-12-13 11:09:03,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:09:03,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:09:03,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:09:03,306 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:09:03,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:09:02" (3/4) ... [2022-12-13 11:09:03,309 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:09:03,309 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:09:03,310 INFO L158 Benchmark]: Toolchain (without parser) took 149682.85ms. Allocated memory was 140.5MB in the beginning and 851.4MB in the end (delta: 710.9MB). Free memory was 107.0MB in the beginning and 582.8MB in the end (delta: -475.8MB). Peak memory consumption was 235.6MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,310 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:09:03,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.34ms. Allocated memory is still 140.5MB. Free memory was 106.6MB in the beginning and 48.3MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.85ms. Allocated memory is still 140.5MB. Free memory was 48.3MB in the beginning and 91.0MB in the end (delta: -42.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,311 INFO L158 Benchmark]: Boogie Preprocessor took 73.14ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 81.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,311 INFO L158 Benchmark]: RCFGBuilder took 148597.29ms. Allocated memory was 140.5MB in the beginning and 851.4MB in the end (delta: 710.9MB). Free memory was 81.3MB in the beginning and 635.3MB in the end (delta: -554.0MB). Peak memory consumption was 510.0MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,312 INFO L158 Benchmark]: TraceAbstraction took 404.45ms. Allocated memory is still 851.4MB. Free memory was 634.2MB in the beginning and 583.9MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-12-13 11:09:03,312 INFO L158 Benchmark]: Witness Printer took 2.72ms. Allocated memory is still 851.4MB. Free memory was 583.9MB in the beginning and 582.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:09:03,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.34ms. Allocated memory is still 140.5MB. Free memory was 106.6MB in the beginning and 48.3MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.85ms. Allocated memory is still 140.5MB. Free memory was 48.3MB in the beginning and 91.0MB in the end (delta: -42.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.14ms. Allocated memory is still 140.5MB. Free memory was 91.0MB in the beginning and 81.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 148597.29ms. Allocated memory was 140.5MB in the beginning and 851.4MB in the end (delta: 710.9MB). Free memory was 81.3MB in the beginning and 635.3MB in the end (delta: -554.0MB). Peak memory consumption was 510.0MB. Max. memory is 16.1GB. * TraceAbstraction took 404.45ms. Allocated memory is still 851.4MB. Free memory was 634.2MB in the beginning and 583.9MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 2.72ms. Allocated memory is still 851.4MB. Free memory was 583.9MB in the beginning and 582.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 208, overapproximation of bitwiseOr at line 218, overapproximation of bitwiseAnd at line 182. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L34] const SORT_17 mask_SORT_17 = (SORT_17)-1 >> (sizeof(SORT_17) * 8 - 2); [L35] const SORT_17 msb_SORT_17 = (SORT_17)1 << (2 - 1); [L37] const SORT_48 mask_SORT_48 = (SORT_48)-1 >> (sizeof(SORT_48) * 8 - 12); [L38] const SORT_48 msb_SORT_48 = (SORT_48)1 << (12 - 1); [L40] const SORT_85 mask_SORT_85 = (SORT_85)-1 >> (sizeof(SORT_85) * 8 - 17); [L41] const SORT_85 msb_SORT_85 = (SORT_85)1 << (17 - 1); [L43] const SORT_86 mask_SORT_86 = (SORT_86)-1 >> (sizeof(SORT_86) * 8 - 5); [L44] const SORT_86 msb_SORT_86 = (SORT_86)1 << (5 - 1); [L46] const SORT_89 mask_SORT_89 = (SORT_89)-1 >> (sizeof(SORT_89) * 8 - 9); [L47] const SORT_89 msb_SORT_89 = (SORT_89)1 << (9 - 1); [L49] const SORT_91 mask_SORT_91 = (SORT_91)-1 >> (sizeof(SORT_91) * 8 - 10); [L50] const SORT_91 msb_SORT_91 = (SORT_91)1 << (10 - 1); [L52] const SORT_94 mask_SORT_94 = (SORT_94)-1 >> (sizeof(SORT_94) * 8 - 11); [L53] const SORT_94 msb_SORT_94 = (SORT_94)1 << (11 - 1); [L55] const SORT_99 mask_SORT_99 = (SORT_99)-1 >> (sizeof(SORT_99) * 8 - 13); [L56] const SORT_99 msb_SORT_99 = (SORT_99)1 << (13 - 1); [L58] const SORT_102 mask_SORT_102 = (SORT_102)-1 >> (sizeof(SORT_102) * 8 - 14); [L59] const SORT_102 msb_SORT_102 = (SORT_102)1 << (14 - 1); [L61] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 15); [L62] const SORT_105 msb_SORT_105 = (SORT_105)1 << (15 - 1); [L64] const SORT_138 mask_SORT_138 = (SORT_138)-1 >> (sizeof(SORT_138) * 8 - 7); [L65] const SORT_138 msb_SORT_138 = (SORT_138)1 << (7 - 1); [L67] const SORT_371 mask_SORT_371 = (SORT_371)-1 >> (sizeof(SORT_371) * 8 - 4); [L68] const SORT_371 msb_SORT_371 = (SORT_371)1 << (4 - 1); [L70] const SORT_374 mask_SORT_374 = (SORT_374)-1 >> (sizeof(SORT_374) * 8 - 6); [L71] const SORT_374 msb_SORT_374 = (SORT_374)1 << (6 - 1); [L73] const SORT_377 mask_SORT_377 = (SORT_377)-1 >> (sizeof(SORT_377) * 8 - 8); [L74] const SORT_377 msb_SORT_377 = (SORT_377)1 << (8 - 1); [L76] const SORT_3 var_6 = 0; [L77] const SORT_9 var_11 = 3; [L78] const SORT_9 var_14 = 1; [L79] const SORT_9 var_23 = 0; [L80] const SORT_1 var_35 = 1; [L81] const SORT_1 var_43 = 0; [L82] const SORT_48 var_49 = 0; [L83] const SORT_9 var_62 = 2; [L84] const SORT_9 var_70 = 4; [L85] const SORT_9 var_72 = 5; [L86] const SORT_86 var_87 = 0; [L87] const SORT_138 var_140 = 5; [L88] const SORT_138 var_144 = 4; [L89] const SORT_138 var_148 = 3; [L90] const SORT_138 var_152 = 2; [L91] const SORT_138 var_156 = 1; [L92] const SORT_138 var_160 = 0; [L93] const SORT_48 var_199 = 2; [L94] const SORT_17 var_215 = 0; [L95] const SORT_3 var_222 = 65535; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_211; [L101] SORT_3 input_212; [L102] SORT_3 input_213; [L103] SORT_3 input_221; [L104] SORT_3 input_229; [L105] SORT_3 input_230; [L106] SORT_3 input_231; [L107] SORT_3 input_234; [L108] SORT_3 input_252; [L109] SORT_3 input_253; [L110] SORT_3 input_254; [L111] SORT_3 input_257; [L112] SORT_3 input_259; [L113] SORT_17 input_273; [L114] SORT_17 input_274; [L115] SORT_17 input_275; [L117] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L118] SORT_9 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L119] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L120] SORT_3 state_39 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_41 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_3 state_46 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_48 state_50 = __VERIFIER_nondet_ushort() & mask_SORT_48; [L125] SORT_48 state_52 = __VERIFIER_nondet_ushort() & mask_SORT_48; [L126] SORT_3 state_54 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_3 state_56 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] SORT_3 state_58 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] SORT_3 state_60 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L131] SORT_3 init_8_arg_1 = var_6; [L132] state_7 = init_8_arg_1 [L133] SORT_9 init_25_arg_1 = var_23; [L134] state_24 = init_25_arg_1 [L135] SORT_3 init_29_arg_1 = var_6; [L136] state_28 = init_29_arg_1 [L137] SORT_3 init_40_arg_1 = var_6; [L138] state_39 = init_40_arg_1 [L139] SORT_3 init_42_arg_1 = var_6; [L140] state_41 = init_42_arg_1 [L141] SORT_1 init_45_arg_1 = var_43; [L142] state_44 = init_45_arg_1 [L143] SORT_3 init_47_arg_1 = var_6; [L144] state_46 = init_47_arg_1 [L145] SORT_48 init_51_arg_1 = var_49; [L146] state_50 = init_51_arg_1 [L147] SORT_48 init_53_arg_1 = var_49; [L148] state_52 = init_53_arg_1 [L149] SORT_3 init_55_arg_1 = var_6; [L150] state_54 = init_55_arg_1 [L151] SORT_3 init_57_arg_1 = var_6; [L152] state_56 = init_57_arg_1 [L153] SORT_3 init_59_arg_1 = var_6; [L154] state_58 = init_59_arg_1 [L155] SORT_3 init_61_arg_1 = var_6; [L156] state_60 = init_61_arg_1 VAL [init_25_arg_1=0, init_29_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_102=16383, mask_SORT_105=32767, mask_SORT_138=127, mask_SORT_17=3, mask_SORT_3=65535, mask_SORT_371=15, mask_SORT_374=63, mask_SORT_377=255, mask_SORT_48=4095, mask_SORT_85=4294967295, mask_SORT_86=31, mask_SORT_89=511, mask_SORT_9=7, mask_SORT_91=1023, mask_SORT_94=2047, mask_SORT_99=8191, msb_SORT_1=1, msb_SORT_102=8192, msb_SORT_105=16384, msb_SORT_138=64, msb_SORT_17=2, msb_SORT_3=32768, msb_SORT_371=8, msb_SORT_374=32, msb_SORT_377=128, msb_SORT_48=2048, msb_SORT_85=65536, msb_SORT_86=16, msb_SORT_89=256, msb_SORT_9=4, msb_SORT_91=512, msb_SORT_94=1024, msb_SORT_99=4096, state_24=0, state_28=0, state_39=0, state_41=0, state_44=0, state_46=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_60=0, state_7=0, var_11=3, var_14=1, var_140=5, var_144=4, var_148=3, var_152=2, var_156=1, var_160=0, var_199=2, var_215=0, var_222=65535, var_23=0, var_35=1, var_43=0, var_49=0, var_6=0, var_62=2, var_70=4, var_72=5, var_87=0] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_211 = __VERIFIER_nondet_ushort() [L163] input_212 = __VERIFIER_nondet_ushort() [L164] input_213 = __VERIFIER_nondet_ushort() [L165] input_221 = __VERIFIER_nondet_ushort() [L166] input_229 = __VERIFIER_nondet_ushort() [L167] input_230 = __VERIFIER_nondet_ushort() [L168] input_231 = __VERIFIER_nondet_ushort() [L169] input_234 = __VERIFIER_nondet_ushort() [L170] input_252 = __VERIFIER_nondet_ushort() [L171] input_253 = __VERIFIER_nondet_ushort() [L172] input_254 = __VERIFIER_nondet_ushort() [L173] input_257 = __VERIFIER_nondet_ushort() [L174] input_259 = __VERIFIER_nondet_ushort() [L175] input_273 = __VERIFIER_nondet_uchar() [L176] input_274 = __VERIFIER_nondet_uchar() [L177] input_275 = __VERIFIER_nondet_uchar() [L180] SORT_3 var_10_arg_0 = state_7; [L181] SORT_9 var_10 = var_10_arg_0 >> 0; [L182] var_10 = var_10 & mask_SORT_9 [L183] SORT_9 var_12_arg_0 = var_10; [L184] SORT_9 var_12_arg_1 = var_11; [L185] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L186] SORT_3 var_13_arg_0 = state_7; [L187] SORT_9 var_13 = var_13_arg_0 >> 9; [L188] var_13 = var_13 & mask_SORT_9 [L189] SORT_9 var_15_arg_0 = var_13; [L190] SORT_9 var_15_arg_1 = var_14; [L191] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L192] SORT_1 var_16_arg_0 = var_12; [L193] SORT_1 var_16_arg_1 = var_15; [L194] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L195] SORT_3 var_18_arg_0 = state_7; [L196] SORT_17 var_18 = var_18_arg_0 >> 3; [L197] var_18 = var_18 & mask_SORT_17 [L198] SORT_3 var_19_arg_0 = state_7; [L199] SORT_17 var_19 = var_19_arg_0 >> 5; [L200] var_19 = var_19 & mask_SORT_17 [L201] SORT_17 var_20_arg_0 = var_18; [L202] SORT_17 var_20_arg_1 = var_19; [L203] SORT_1 var_20 = var_20_arg_0 == var_20_arg_1; [L204] SORT_1 var_21_arg_0 = var_16; [L205] SORT_1 var_21_arg_1 = var_20; [L206] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L207] SORT_1 var_22_arg_0 = var_21; [L208] SORT_1 var_22 = ~var_22_arg_0; [L209] SORT_9 var_26_arg_0 = state_24; [L210] SORT_1 var_26 = var_26_arg_0 >> 2; [L211] SORT_1 var_27_arg_0 = var_26; [L212] SORT_1 var_27 = ~var_27_arg_0; [L213] SORT_3 var_30_arg_0 = state_28; [L214] SORT_3 var_30_arg_1 = var_6; [L215] SORT_1 var_30 = var_30_arg_0 == var_30_arg_1; [L216] SORT_1 var_31_arg_0 = var_27; [L217] SORT_1 var_31_arg_1 = var_30; [L218] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L219] SORT_1 var_32_arg_0 = var_22; [L220] SORT_1 var_32_arg_1 = var_31; [L221] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L222] SORT_1 var_36_arg_0 = var_32; [L223] SORT_1 var_36 = ~var_36_arg_0; [L224] SORT_1 var_37_arg_0 = var_35; [L225] SORT_1 var_37_arg_1 = var_36; [L226] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L227] var_37 = var_37 & mask_SORT_1 [L228] SORT_1 bad_38_arg_0 = var_37; [L229] CALL __VERIFIER_assert(!(bad_38_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 11:09:03,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8 --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 4f73fcb602ed80b8e51075c80825f775ed441d29f316457a0aa85fc6e1e72b5c --- 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-2329fc7 [2022-12-13 11:09:05,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:09:05,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:09:05,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:09:05,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:09:05,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:09:05,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:09:05,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:09:05,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:09:05,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:09:05,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:09:05,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:09:05,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:09:05,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:09:05,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:09:05,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:09:05,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:09:05,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:09:05,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:09:05,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:09:05,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:09:05,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:09:05,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:09:05,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:09:05,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:09:05,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:09:05,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:09:05,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:09:05,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:09:05,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:09:05,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:09:05,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:09:05,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:09:05,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:09:05,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:09:05,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:09:05,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:09:05,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:09:05,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:09:05,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:09:05,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:09:05,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:09:05,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:09:05,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:09:05,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:09:05,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:09:05,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:09:05,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:09:05,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:09:05,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:09:05,157 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:09:05,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:09:05,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:09:05,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:09:05,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:09:05,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:09:05,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:09:05,159 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:09:05,160 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f73fcb602ed80b8e51075c80825f775ed441d29f316457a0aa85fc6e1e72b5c [2022-12-13 11:09:05,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:09:05,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:09:05,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:09:05,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:09:05,408 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:09:05,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:09:08,029 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:09:08,236 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:09:08,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:09:08,262 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/3517e5ced/68f2234aea174de6a56ef3585b57d890/FLAG5efdc8cce [2022-12-13 11:09:08,273 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/data/3517e5ced/68f2234aea174de6a56ef3585b57d890 [2022-12-13 11:09:08,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:09:08,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:09:08,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:09:08,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:09:08,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:09:08,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a369545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08, skipping insertion in model container [2022-12-13 11:09:08,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:09:08,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:09:08,487 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c[1107,1120] [2022-12-13 11:09:08,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:09:08,716 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:09:08,723 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p8.c[1107,1120] [2022-12-13 11:09:08,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:09:08,813 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:09:08,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08 WrapperNode [2022-12-13 11:09:08,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:09:08,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:09:08,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:09:08,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:09:08,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,887 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1800 [2022-12-13 11:09:08,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:09:08,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:09:08,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:09:08,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:09:08,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:09:08,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:09:08,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:09:08,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:09:08,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (1/1) ... [2022-12-13 11:09:08,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:09:08,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:09:08,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:09:08,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:09:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:09:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:09:09,284 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:09:09,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:09:11,059 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:09:11,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:09:11,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:09:11,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:09:11 BoogieIcfgContainer [2022-12-13 11:09:11,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:09:11,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:09:11,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:09:11,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:09:11,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:09:08" (1/3) ... [2022-12-13 11:09:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e008405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:09:11, skipping insertion in model container [2022-12-13 11:09:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:09:08" (2/3) ... [2022-12-13 11:09:11,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e008405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:09:11, skipping insertion in model container [2022-12-13 11:09:11,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:09:11" (3/3) ... [2022-12-13 11:09:11,076 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p8.c [2022-12-13 11:09:11,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:09:11,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:09:11,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:09:11,140 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;@40e788d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:09:11,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:09:11,143 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) [2022-12-13 11:09:11,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:09:11,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:09:11,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:09:11,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:09:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:09:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:09:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:09:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220315542] [2022-12-13 11:09:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:09:11,162 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 [2022-12-13 11:09:11,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:09:11,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:09:11,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:11,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:09:11,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-13 11:09:11,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:09:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:09:11,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:09:11,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:09:11,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220315542] [2022-12-13 11:09:11,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220315542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:09:11,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:09:11,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:09:11,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350185068] [2022-12-13 11:09:11,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:09:11,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:09:11,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:09:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:09:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:09:11,613 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) [2022-12-13 11:09:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:09:11,829 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 11:09:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:09:11,830 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 [2022-12-13 11:09:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:09:11,835 INFO L225 Difference]: With dead ends: 20 [2022-12-13 11:09:11,836 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 11:09:11,837 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 [2022-12-13 11:09:11,840 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 [2022-12-13 11:09:11,840 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] [2022-12-13 11:09:11,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 11:09:11,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 11:09:11,860 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) [2022-12-13 11:09:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 11:09:11,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 11:09:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:09:11,861 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 11:09:11,861 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) [2022-12-13 11:09:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 11:09:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 11:09:11,862 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:09:11,862 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:09:11,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:09:12,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:12,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:09:12,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:09:12,067 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 11:09:12,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:09:12,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360248059] [2022-12-13 11:09:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:09:12,080 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 [2022-12-13 11:09:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:09:12,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:09:12,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:09:12,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 11:09:12,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:09:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:09:12,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:09:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:09:13,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:09:13,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360248059] [2022-12-13 11:09:13,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360248059] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:09:13,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:09:13,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:09:13,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828835278] [2022-12-13 11:09:13,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:09:13,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:09:13,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:09:13,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:09:13,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:09:13,424 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) [2022-12-13 11:09:13,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:09:13,896 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 11:09:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:09:13,897 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 [2022-12-13 11:09:13,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:09:13,897 INFO L225 Difference]: With dead ends: 16 [2022-12-13 11:09:13,897 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:09:13,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:09:13,898 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:09:13,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 11:09:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:09:13,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 11:09:13,901 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) [2022-12-13 11:09:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 11:09:13,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 11:09:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:09:13,901 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 11:09:13,902 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) [2022-12-13 11:09:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 11:09:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:09:13,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:09:13,902 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 11:09:13,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 11:09:14,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:14,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:09:14,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:09:14,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 11:09:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:09:14,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299884281] [2022-12-13 11:09:14,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:09:14,109 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 [2022-12-13 11:09:14,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:09:14,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:09:14,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:15,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:09:15,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:09:15,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 3120 conjuncts, 41 conjunts are in the unsatisfiable core [2022-12-13 11:09:15,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:09:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:09:15,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:09:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:09:15,924 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:09:15,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299884281] [2022-12-13 11:09:15,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299884281] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:09:15,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:09:15,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 11:09:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490771505] [2022-12-13 11:09:15,925 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:09:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:09:15,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:09:15,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:09:15,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:09:15,927 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) [2022-12-13 11:09:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:09:17,235 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-12-13 11:09:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:09:17,235 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 [2022-12-13 11:09:17,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:09:17,236 INFO L225 Difference]: With dead ends: 22 [2022-12-13 11:09:17,236 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 11:09:17,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-13 11:09:17,237 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:09:17,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 27 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 11:09:17,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 11:09:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-13 11:09:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:09:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-12-13 11:09:17,240 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-12-13 11:09:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:09:17,241 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-12-13 11:09:17,241 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) [2022-12-13 11:09:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-12-13 11:09:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 11:09:17,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:09:17,241 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-12-13 11:09:17,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 11:09:17,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:17,443 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:09:17,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:09:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-12-13 11:09:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:09:17,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000073479] [2022-12-13 11:09:17,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:09:17,460 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 [2022-12-13 11:09:17,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:09:17,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:09:17,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6d998d7-853b-41b6-8d24-8782414ac3d3/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:09:19,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 11:09:19,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:09:19,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 6090 conjuncts, 1025 conjunts are in the unsatisfiable core [2022-12-13 11:09:19,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:12:48,831 WARN L233 SmtUtils]: Spent 1.73m on a formula simplification. DAG size of input: 1975 DAG size of output: 753 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:12:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:12:50,775 INFO L328 TraceCheckSpWp]: Computing backward predicates...