./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e4f52ed6ec31f3f509aad5ffadcb124384802bf78fade278b01364c8156e3d63 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:01:01,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:01,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:01,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:01,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:01,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:01,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:01,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:01,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:01,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:01,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:01,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:01,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:01,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:01,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:01,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:01,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:01,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:01,444 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:01,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:01,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:01,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:01,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:01,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:01,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:01,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:01,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:01,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:01,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:01,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:01,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:01,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:01,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:01,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:01,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:01,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:01,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:01,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:01,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:01,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:01,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:01,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:01:01,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:01,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:01,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:01,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:01,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:01,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:01,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:01,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:01,511 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:01,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:01,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:01:01,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:01,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:01,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:01,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:01,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:01,514 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:01,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:01,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:01,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:01,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:01,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:01,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:01,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:01,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:01,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:01:01,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:01:01,521 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:01,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:01,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:01,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f52ed6ec31f3f509aad5ffadcb124384802bf78fade278b01364c8156e3d63 [2022-11-16 12:01:01,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:01,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:01,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:01,859 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:01,860 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:01,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:01,953 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/9207ed279/78c19ac748ab42688743f24a212a1a98/FLAGab8c41eca [2022-11-16 12:01:02,432 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:02,432 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:02,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/9207ed279/78c19ac748ab42688743f24a212a1a98/FLAGab8c41eca [2022-11-16 12:01:02,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/9207ed279/78c19ac748ab42688743f24a212a1a98 [2022-11-16 12:01:02,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:02,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:02,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:02,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:02,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:02,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:02" (1/1) ... [2022-11-16 12:01:02,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1053290f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:02, skipping insertion in model container [2022-11-16 12:01:02,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:02" (1/1) ... [2022-11-16 12:01:02,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:02,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:03,066 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1107,1120] [2022-11-16 12:01:03,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:03,158 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:03,170 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1107,1120] [2022-11-16 12:01:03,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:03,234 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:03,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03 WrapperNode [2022-11-16 12:01:03,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:03,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:03,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:03,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:03,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,349 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 356 [2022-11-16 12:01:03,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:03,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:03,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:03,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:03,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,426 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:03,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:03,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:03,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:03,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (1/1) ... [2022-11-16 12:01:03,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:03,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:03,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:03,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:03,745 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:03,747 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:04,404 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:04,411 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:04,412 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:01:04,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:04 BoogieIcfgContainer [2022-11-16 12:01:04,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:04,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:04,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:04,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:04,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:02" (1/3) ... [2022-11-16 12:01:04,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24867f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:04, skipping insertion in model container [2022-11-16 12:01:04,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:03" (2/3) ... [2022-11-16 12:01:04,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24867f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:04, skipping insertion in model container [2022-11-16 12:01:04,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:04" (3/3) ... [2022-11-16 12:01:04,423 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:04,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:04,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:01:04,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:04,509 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;@10c05c17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:04,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:01:04,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 12:01:04,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:04,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:04,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash -327482853, now seen corresponding path program 1 times [2022-11-16 12:01:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:04,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492946826] [2022-11-16 12:01:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:04,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:05,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492946826] [2022-11-16 12:01:05,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492946826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:05,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:05,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448725362] [2022-11-16 12:01:05,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:05,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:01:05,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:05,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:01:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:01:05,106 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:05,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:05,222 INFO L93 Difference]: Finished difference Result 97 states and 157 transitions. [2022-11-16 12:01:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:05,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 12:01:05,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:05,237 INFO L225 Difference]: With dead ends: 97 [2022-11-16 12:01:05,239 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 12:01:05,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:05,252 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:05,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 113 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:01:05,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 12:01:05,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 33. [2022-11-16 12:01:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2022-11-16 12:01:05,290 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 9 [2022-11-16 12:01:05,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:05,290 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2022-11-16 12:01:05,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2022-11-16 12:01:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 12:01:05,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:05,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:05,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:01:05,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1560249297, now seen corresponding path program 1 times [2022-11-16 12:01:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:05,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253983281] [2022-11-16 12:01:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:05,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:01:05,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:01:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:01:05,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:01:05,470 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:01:05,472 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:01:05,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:01:05,485 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:01:05,490 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:01:05,546 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 12:01:05,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:05 BoogieIcfgContainer [2022-11-16 12:01:05,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:01:05,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:01:05,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:01:05,564 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:01:05,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:04" (3/4) ... [2022-11-16 12:01:05,568 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:01:05,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:01:05,571 INFO L158 Benchmark]: Toolchain (without parser) took 2791.45ms. Allocated memory is still 138.4MB. Free memory was 104.6MB in the beginning and 64.9MB in the end (delta: 39.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-11-16 12:01:05,572 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:05,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.92ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 109.4MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:01:05,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.16ms. Allocated memory is still 138.4MB. Free memory was 109.4MB in the beginning and 106.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:01:05,579 INFO L158 Benchmark]: Boogie Preprocessor took 100.96ms. Allocated memory is still 138.4MB. Free memory was 106.1MB in the beginning and 103.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:01:05,580 INFO L158 Benchmark]: RCFGBuilder took 960.80ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 61.2MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-16 12:01:05,581 INFO L158 Benchmark]: TraceAbstraction took 1146.65ms. Allocated memory is still 138.4MB. Free memory was 61.2MB in the beginning and 64.9MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:05,581 INFO L158 Benchmark]: Witness Printer took 7.03ms. Allocated memory is still 138.4MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:05,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 61.7MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.92ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 109.4MB in the end (delta: -5.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.16ms. Allocated memory is still 138.4MB. Free memory was 109.4MB in the beginning and 106.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.96ms. Allocated memory is still 138.4MB. Free memory was 106.1MB in the beginning and 103.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 960.80ms. Allocated memory is still 138.4MB. Free memory was 103.0MB in the beginning and 61.2MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1146.65ms. Allocated memory is still 138.4MB. Free memory was 61.2MB in the beginning and 64.9MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.03ms. Allocated memory is still 138.4MB. Free memory is still 64.9MB. 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 127, overapproximation of bitwiseOr at line 119, overapproximation of bitwiseAnd at line 131. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L31] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); [L32] const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); [L34] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 3); [L35] const SORT_16 msb_SORT_16 = (SORT_16)1 << (3 - 1); [L37] const SORT_1 var_12 = 0; [L38] const SORT_16 var_17 = 0; [L39] const SORT_16 var_20 = 6; [L40] const SORT_16 var_25 = 7; [L41] const SORT_1 var_30 = 1; [L42] const SORT_5 var_34 = 0; [L43] const SORT_7 var_39 = 0; [L44] const SORT_7 var_42 = 8; [L45] const SORT_7 var_44 = 9; [L46] const SORT_7 var_47 = 15; [L47] const SORT_7 var_55 = 12; [L48] const SORT_7 var_58 = 4; [L49] const SORT_7 var_64 = 10; [L50] const SORT_7 var_66 = 11; [L51] const SORT_7 var_69 = 13; [L52] const SORT_7 var_84 = 1; [L53] const SORT_7 var_89 = 5; [L54] const SORT_16 var_114 = 1; [L55] const SORT_16 var_116 = 5; [L56] const SORT_5 var_125 = 1; [L58] SORT_1 input_2; [L59] SORT_1 input_3; [L60] SORT_1 input_4; [L61] SORT_5 input_6; [L62] SORT_7 input_8; [L63] SORT_1 input_9; [L64] SORT_1 input_10; [L65] SORT_1 input_11; [L66] SORT_5 input_93; [L67] SORT_5 input_95; [L68] SORT_5 input_97; [L69] SORT_5 input_99; [L70] SORT_5 input_101; [L71] SORT_5 input_103; [L72] SORT_5 input_105; [L73] SORT_5 input_107; [L74] SORT_5 input_109; [L76] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L78] SORT_16 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L79] SORT_5 state_35 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L81] SORT_1 init_14_arg_1 = var_12; [L82] state_13 = init_14_arg_1 [L83] SORT_16 init_19_arg_1 = var_17; [L84] state_18 = init_19_arg_1 [L85] SORT_16 init_24_arg_1 = var_17; [L86] state_23 = init_24_arg_1 [L87] SORT_5 init_36_arg_1 = var_34; [L88] state_35 = init_36_arg_1 VAL [init_14_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, init_36_arg_1=0, mask_SORT_1=1, mask_SORT_16=7, mask_SORT_5=4095, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_16=4, msb_SORT_5=2048, msb_SORT_7=8, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_12=0, var_125=1, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L91] input_2 = __VERIFIER_nondet_uchar() [L92] input_3 = __VERIFIER_nondet_uchar() [L93] input_4 = __VERIFIER_nondet_uchar() [L94] input_6 = __VERIFIER_nondet_ushort() [L95] input_8 = __VERIFIER_nondet_uchar() [L96] input_8 = input_8 & mask_SORT_7 VAL [init_14_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, init_36_arg_1=0, input_2=14, input_3=3, input_4=9, input_6=4098, input_8=0, mask_SORT_1=1, mask_SORT_16=7, mask_SORT_5=4095, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_16=4, msb_SORT_5=2048, msb_SORT_7=8, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_12=0, var_125=1, var_17=0, var_20=6, var_25=7, var_30=1, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L97] input_9 = __VERIFIER_nondet_uchar() [L98] input_10 = __VERIFIER_nondet_uchar() [L99] input_11 = __VERIFIER_nondet_uchar() [L100] input_93 = __VERIFIER_nondet_ushort() [L101] input_95 = __VERIFIER_nondet_ushort() [L102] input_97 = __VERIFIER_nondet_ushort() [L103] input_99 = __VERIFIER_nondet_ushort() [L104] input_101 = __VERIFIER_nondet_ushort() [L105] input_103 = __VERIFIER_nondet_ushort() [L106] input_105 = __VERIFIER_nondet_ushort() [L107] input_107 = __VERIFIER_nondet_ushort() [L108] input_109 = __VERIFIER_nondet_ushort() [L111] SORT_1 var_15_arg_0 = state_13; [L112] SORT_1 var_15_arg_1 = var_12; [L113] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L114] SORT_16 var_21_arg_0 = state_18; [L115] SORT_16 var_21_arg_1 = var_20; [L116] SORT_1 var_21 = var_21_arg_0 != var_21_arg_1; [L117] SORT_1 var_22_arg_0 = var_15; [L118] SORT_1 var_22_arg_1 = var_21; [L119] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L120] SORT_16 var_26_arg_0 = state_23; [L121] SORT_16 var_26_arg_1 = var_25; [L122] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L123] SORT_1 var_27_arg_0 = var_22; [L124] SORT_1 var_27_arg_1 = var_26; [L125] SORT_1 var_27 = var_27_arg_0 | var_27_arg_1; [L126] SORT_1 var_31_arg_0 = var_27; [L127] SORT_1 var_31 = ~var_31_arg_0; [L128] SORT_1 var_32_arg_0 = var_30; [L129] SORT_1 var_32_arg_1 = var_31; [L130] SORT_1 var_32 = var_32_arg_0 & var_32_arg_1; VAL [init_14_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, init_36_arg_1=0, input_10=8, input_101=4108, input_103=4100, input_105=4097, input_107=4101, input_109=4096, input_11=6, input_2=14, input_3=3, input_4=9, input_6=4098, input_8=0, input_9=7, input_93=4112, input_95=4106, input_97=4109, input_99=4111, mask_SORT_1=1, mask_SORT_16=7, mask_SORT_5=4095, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_16=4, msb_SORT_5=2048, msb_SORT_7=8, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_12=0, var_125=1, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_17=0, var_20=6, var_21=1, var_21_arg_0=0, var_21_arg_1=6, var_22=1, var_22_arg_0=1, var_22_arg_1=1, var_25=7, var_26=0, var_26_arg_0=0, var_26_arg_1=7, var_27=1, var_27_arg_0=1, var_27_arg_1=0, var_30=1, var_31=2, var_31_arg_0=1, var_32=11, var_32_arg_0=1, var_32_arg_1=2, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L131] var_32 = var_32 & mask_SORT_1 VAL [init_14_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, init_36_arg_1=0, input_10=8, input_101=4108, input_103=4100, input_105=4097, input_107=4101, input_109=4096, input_11=6, input_2=14, input_3=3, input_4=9, input_6=4098, input_8=0, input_9=7, input_93=4112, input_95=4106, input_97=4109, input_99=4111, mask_SORT_1=1, mask_SORT_16=7, mask_SORT_5=4095, mask_SORT_7=15, msb_SORT_1=1, msb_SORT_16=4, msb_SORT_5=2048, msb_SORT_7=8, state_13=0, state_18=0, state_23=0, state_35=0, var_114=1, var_116=5, var_12=0, var_125=1, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_17=0, var_20=6, var_21=1, var_21_arg_0=0, var_21_arg_1=6, var_22=1, var_22_arg_0=1, var_22_arg_1=1, var_25=7, var_26=0, var_26_arg_0=0, var_26_arg_1=7, var_27=1, var_27_arg_0=1, var_27_arg_1=0, var_30=1, var_31=2, var_31_arg_0=1, var_32=1, var_32_arg_0=1, var_32_arg_1=2, var_34=0, var_39=0, var_42=8, var_44=9, var_47=15, var_55=12, var_58=4, var_64=10, var_66=11, var_69=13, var_84=1, var_89=5] [L132] SORT_1 bad_33_arg_0 = var_32; [L133] CALL __VERIFIER_assert(!(bad_33_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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 55 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:01:05,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e4f52ed6ec31f3f509aad5ffadcb124384802bf78fade278b01364c8156e3d63 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:01:08,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:08,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:08,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:08,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:08,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:08,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:08,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:08,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:08,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:08,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:08,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:08,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:08,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:08,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:08,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:08,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:08,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:08,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:08,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:08,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:08,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:08,153 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:08,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:08,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:08,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:08,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:08,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:08,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:08,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:08,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:08,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:08,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:08,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:08,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:08,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:08,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:08,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:08,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:08,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:08,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:08,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:01:08,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:08,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:08,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:08,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:08,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:08,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:08,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:08,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:08,229 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:08,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:08,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:08,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:08,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:08,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:08,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:01:08,232 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:01:08,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:01:08,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:08,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:08,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:08,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:08,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:08,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:08,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:08,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:08,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:08,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:08,235 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:01:08,236 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:01:08,236 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:08,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:08,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:08,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:01:08,237 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f52ed6ec31f3f509aad5ffadcb124384802bf78fade278b01364c8156e3d63 [2022-11-16 12:01:08,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:08,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:08,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:08,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:08,695 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:08,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:08,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/351b1e292/1ea67a2bd6724bf38a3b8c86a7488791/FLAG992405145 [2022-11-16 12:01:09,268 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:09,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:09,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/351b1e292/1ea67a2bd6724bf38a3b8c86a7488791/FLAG992405145 [2022-11-16 12:01:09,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/data/351b1e292/1ea67a2bd6724bf38a3b8c86a7488791 [2022-11-16 12:01:09,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:09,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:09,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:09,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:09,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:09,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:09" (1/1) ... [2022-11-16 12:01:09,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9ce663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:09, skipping insertion in model container [2022-11-16 12:01:09,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:09" (1/1) ... [2022-11-16 12:01:09,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:09,731 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:09,924 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1107,1120] [2022-11-16 12:01:10,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:10,087 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:10,099 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p2.c[1107,1120] [2022-11-16 12:01:10,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:10,216 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:10,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10 WrapperNode [2022-11-16 12:01:10,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:10,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:10,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:10,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:10,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,308 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 300 [2022-11-16 12:01:10,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:10,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:10,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:10,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:10,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:10,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:10,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:10,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:10,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (1/1) ... [2022-11-16 12:01:10,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:10,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:10,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:10,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:10,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:10,686 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:10,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:11,128 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:11,136 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:11,137 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:01:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:11 BoogieIcfgContainer [2022-11-16 12:01:11,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:11,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:11,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:11,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:11,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:09" (1/3) ... [2022-11-16 12:01:11,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe5ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:11, skipping insertion in model container [2022-11-16 12:01:11,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:10" (2/3) ... [2022-11-16 12:01:11,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbe5ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:11, skipping insertion in model container [2022-11-16 12:01:11,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:11" (3/3) ... [2022-11-16 12:01:11,155 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p2.c [2022-11-16 12:01:11,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:11,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:01:11,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:11,247 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;@2c6056f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:11,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:01:11,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:01:11,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:11,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:01:11,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:11,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:11,266 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 12:01:11,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:11,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131203162] [2022-11-16 12:01:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:11,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:11,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:11,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:01:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:11,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 12:01:11,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:11,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:11,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:11,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:11,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131203162] [2022-11-16 12:01:11,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131203162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:11,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:11,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:11,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663983015] [2022-11-16 12:01:11,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:11,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:01:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:01:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:01:11,859 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:11,957 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 12:01:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:11,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:01:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:11,968 INFO L225 Difference]: With dead ends: 20 [2022-11-16 12:01:11,968 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 12:01:11,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:11,976 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:11,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:01:11,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 12:01:12,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 12:01:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:12,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:01:12,020 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 12:01:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:12,020 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:01:12,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:12,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:01:12,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:01:12,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:12,021 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:12,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:12,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:12,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:12,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:12,246 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 12:01:12,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:12,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002181337] [2022-11-16 12:01:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:12,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:12,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:12,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:01:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:12,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-16 12:01:12,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:12,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:13,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:13,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002181337] [2022-11-16 12:01:13,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002181337] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:13,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:13,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:01:13,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123760248] [2022-11-16 12:01:13,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:13,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:01:13,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:13,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:01:13,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:01:13,106 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:13,296 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 12:01:13,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:01:13,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:01:13,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:13,298 INFO L225 Difference]: With dead ends: 16 [2022-11-16 12:01:13,298 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 12:01:13,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:13,299 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-11-16 12:01:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 12:01:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 12:01:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:13,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 12:01:13,306 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 12:01:13,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:13,308 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 12:01:13,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 12:01:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:01:13,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:13,311 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 12:01:13,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:13,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:13,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:13,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 12:01:13,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:13,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101176231] [2022-11-16 12:01:13,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:13,526 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:13,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:13,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:13,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:01:13,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:01:13,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:13,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-16 12:01:13,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:14,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:15,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:15,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101176231] [2022-11-16 12:01:15,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101176231] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:15,565 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:15,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-16 12:01:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75306119] [2022-11-16 12:01:15,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:15,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:01:15,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:01:15,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:01:15,572 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:15,698 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-16 12:01:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:01:15,701 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:01:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:15,701 INFO L225 Difference]: With dead ends: 19 [2022-11-16 12:01:15,701 INFO L226 Difference]: Without dead ends: 17 [2022-11-16 12:01:15,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:01:15,703 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:15,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2022-11-16 12:01:15,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-16 12:01:15,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-16 12:01:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:15,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 12:01:15,708 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 12:01:15,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:15,709 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 12:01:15,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:15,709 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 12:01:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:01:15,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:15,710 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 12:01:15,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-16 12:01:15,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:15,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:15,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 12:01:15,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:15,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717774822] [2022-11-16 12:01:15,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:01:15,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:15,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:15,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:15,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:01:16,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-16 12:01:16,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:16,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-16 12:01:16,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:16,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:30,200 WARN L233 SmtUtils]: Spent 11.81s on a formula simplification. DAG size of input: 265 DAG size of output: 169 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:01:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:30,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:01:30,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717774822] [2022-11-16 12:01:30,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717774822] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:30,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:01:30,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:01:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146073805] [2022-11-16 12:01:30,428 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:30,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:01:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:01:30,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:01:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:01:30,433 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:30,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:30,794 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-16 12:01:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:01:30,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 12:01:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:30,796 INFO L225 Difference]: With dead ends: 22 [2022-11-16 12:01:30,796 INFO L226 Difference]: Without dead ends: 20 [2022-11-16 12:01:30,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:01:30,797 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:30,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 31 Unchecked, 0.1s Time] [2022-11-16 12:01:30,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-16 12:01:30,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-11-16 12:01:30,804 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) [2022-11-16 12:01:30,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-16 12:01:30,805 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2022-11-16 12:01:30,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:30,805 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-16 12:01:30,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:30,806 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-16 12:01:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 12:01:30,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:30,807 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-16 12:01:30,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:31,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:31,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:31,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:31,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 4 times [2022-11-16 12:01:31,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:01:31,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247371973] [2022-11-16 12:01:31,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 12:01:31,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:01:31,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:01:31,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:01:31,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 12:01:31,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 12:01:31,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:31,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 154 conjunts are in the unsatisfiable core [2022-11-16 12:01:31,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:36,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:13:52,760 WARN L233 SmtUtils]: Spent 5.09m on a formula simplification. DAG size of input: 2480 DAG size of output: 233 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:13:56,644 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse12 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_17~0#1|)) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_16~0#1|)) (.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_114~0#1|))) (let ((.cse7 (bvneg .cse5)) (.cse28 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse32 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse12)))))) .cse6))))) (let ((.cse30 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse32))))))) .cse6)))) (.cse2 (forall ((|v_ULTIMATE.start_main_~var_32_arg_0~0#1_15| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_27_arg_1~0#1_15| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_22_arg_0~0#1_15| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_0~0#1_15|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_1~0#1_15|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_22_arg_0~0#1_15|) (_ bv0 32))))))))))))))) (_ bv0 8)))) (.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_20~0#1|)) (.cse31 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse32))))))))) (.cse16 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|))) (let ((.cse19 (= .cse12 .cse16)) (.cse9 (or .cse2 (not (= .cse3 .cse31)))) (.cse10 (or .cse2 (not (= .cse3 .cse32)))) (.cse11 (forall ((|v_ULTIMATE.start_main_~var_32_arg_0~0#1_15| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_27_arg_1~0#1_15| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_22_arg_0~0#1_15| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_32_arg_0~0#1_15|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_27_arg_1~0#1_15|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_22_arg_0~0#1_15|) (_ bv1 32))))))))))))))) (_ bv0 8)))) (.cse15 (or .cse2 (not (= .cse30 .cse3))))) (let ((.cse0 (let ((.cse29 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse32)))))) .cse6))))) (and (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse29 .cse5))))))) .cse6))) .cse3))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse29)))))) .cse6)))))) .cse9 (or (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse30 .cse5))))))) .cse6))))) .cse2) .cse10 .cse11 (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse30 .cse7))))))))))) .cse15 (or (and (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse31))))) .cse6))) .cse3))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse31))))))))))))) (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse31)))))) .cse6))) .cse3)))) (= .cse12 .cse32)) (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse29 .cse7))))) .cse6))) .cse3))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse30)))))) .cse6))))))))) (.cse17 (forall ((|v_ULTIMATE.start_main_~var_122_arg_0~0#1_15| (_ BitVec 8))) (not (= ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_122_arg_0~0#1_15|) (_ bv1 32)))))) (_ bv0 8))))) (.cse18 (or (and (or (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (let ((.cse25 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))) (or (= .cse25 .cse12) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse25 .cse7))))) .cse6))))))))) .cse6)))))))) .cse2) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))) .cse5))))))) .cse6)))))))))))))))) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))) .cse5))))))) .cse6))) .cse5))))))) .cse6))))))) .cse9 (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))))))) .cse6))))))))) .cse6))))))) (or (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))))))) .cse6))) .cse5))))))))))))) .cse2) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))) (or (= .cse26 .cse12) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse26 .cse7))))) .cse6))) .cse5))))))) .cse6))))))))) .cse10 .cse11 .cse15 (or (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))) .cse5))))))) .cse6))) .cse7))))))))))) .cse2) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (let ((.cse27 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))) (or (= .cse27 .cse12) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse7))))) .cse6))) .cse7))))) .cse6))))))))) (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_123_arg_1~0#1_15| (_ BitVec 8))) (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_15|))) .cse6))))))))) .cse6))) .cse7))))) .cse6)))))))) (forall ((|v_ULTIMATE.start_main_~var_122_arg_0~0#1_15| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_122_arg_0~0#1_15|) (_ bv1 32)))))) (_ bv0 8))))) (.cse20 (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse16))))))) .cse6))))) (let ((.cse23 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse21)))))))))) (.cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse21))))))) .cse6))))) (and (or (= .cse12 .cse21) (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse21))))) .cse6))))) (and (or (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse22)))))) .cse6))))) .cse2) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse5))))))) .cse6)))))) (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse7))))) .cse6))) .cse3)))))) (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse23 .cse7))))) .cse6))) .cse3))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse23)))))) .cse6)))))) .cse9 (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse23 .cse5))))))) .cse6)))))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse24))))) .cse6)))))) .cse10 .cse11 (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse24)))))) .cse6))) .cse3))) .cse15 (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse24))))))) .cse6)))))))))) (.cse1 (not .cse19))) (and (or .cse0 .cse1) (or (and (or (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse6 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse16))))))))))) (let ((.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse13)))))) .cse6)))) (.cse8 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse5 .cse13))))))) .cse6))))) (and (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 .cse5))))))) .cse6)))))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse4 .cse7))))) .cse6)))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse8)))))) .cse6))) .cse3)) .cse2) .cse9 (or (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse8 .cse5))))))) .cse6))))) .cse2) .cse10 .cse11 (or (= .cse12 .cse13) (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse7 .cse13))))) .cse6))))) (and (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse14 .cse5))))))) .cse6)))))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse14 .cse7))))) .cse6)))))) (or .cse2 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse14)))))) .cse6))) .cse3)))))) .cse15 (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse4)))))) .cse6)))))) (or .cse2 (not (= .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse8 .cse7))))) .cse6))))))))) .cse17) .cse18) .cse19) (or .cse19 (and .cse18 (or .cse20 .cse17))) (or .cse19 (and (or .cse0 .cse17) .cse18)) (or .cse20 .cse1))))))) is different from false [2022-11-16 12:13:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2022-11-16 12:13:59,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:13:59,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247371973] [2022-11-16 12:13:59,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1247371973] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:13:59,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:13:59,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 12:13:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773775125] [2022-11-16 12:13:59,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:13:59,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:13:59,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:13:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:13:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=116, Unknown=1, NotChecked=22, Total=182 [2022-11-16 12:13:59,597 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:14:42,019 WARN L233 SmtUtils]: Spent 42.33s on a formula simplification. DAG size of input: 733 DAG size of output: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:15:06,673 WARN L233 SmtUtils]: Spent 24.55s on a formula simplification. DAG size of input: 735 DAG size of output: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 12:15:09,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:09,235 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-11-16 12:15:09,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:15:09,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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 17 [2022-11-16 12:15:09,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:09,237 INFO L225 Difference]: With dead ends: 27 [2022-11-16 12:15:09,237 INFO L226 Difference]: Without dead ends: 25 [2022-11-16 12:15:09,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 381.5s TimeCoverageRelationStatistics Valid=137, Invalid=286, Unknown=1, NotChecked=38, Total=462 [2022-11-16 12:15:09,239 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:09,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 36 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 33 Unchecked, 0.2s Time] [2022-11-16 12:15:09,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-16 12:15:09,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-16 12:15:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2022-11-16 12:15:09,250 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 17 [2022-11-16 12:15:09,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:09,251 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2022-11-16 12:15:09,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2022-11-16 12:15:09,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 12:15:09,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:09,253 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1] [2022-11-16 12:15:09,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:15:09,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:09,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash 142558665, now seen corresponding path program 5 times [2022-11-16 12:15:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:15:09,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109654964] [2022-11-16 12:15:09,469 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 12:15:09,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:15:09,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:15:09,470 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:15:09,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29870e74-789c-4a5e-b228-c39efcbd5158/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 12:15:10,068 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-16 12:15:10,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:15:10,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 219 conjunts are in the unsatisfiable core [2022-11-16 12:15:10,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:15:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:31,700 INFO L328 TraceCheckSpWp]: Computing backward predicates...