./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro --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 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 --- 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-8393723 [2022-11-18 20:48:05,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:05,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:05,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:05,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:05,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:05,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:05,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:05,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:05,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:05,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:05,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:05,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:05,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:05,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:05,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:05,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:05,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:05,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:05,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:05,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:05,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:05,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:05,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:48:05,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:48:05,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:48:05,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:48:05,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:48:05,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:48:05,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:48:05,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:48:05,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:48:05,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:48:05,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:48:05,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:48:05,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:48:05,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:48:05,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:48:05,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:48:05,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:48:05,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:48:05,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:48:05,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:48:05,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:48:05,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:48:05,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:48:05,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:48:05,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:48:05,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:48:05,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:48:05,496 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:48:05,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:48:05,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:48:05,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:48:05,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:48:05,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:48:05,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:48:05,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:48:05,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:48:05,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:48:05,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:48:05,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:48:05,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:48:05,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:05,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:48:05,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:48:05,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:48:05,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:48:05,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:48:05,502 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:48:05,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:48:05,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:48:05,503 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_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 [2022-11-18 20:48:05,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:48:05,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:48:05,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:48:05,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:48:05,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:48:05,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:05,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/e8129d5e9/50da4238badf46e69dd7181c1843fd2a/FLAGeb17d5dd1 [2022-11-18 20:48:06,676 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:48:06,677 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:06,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/e8129d5e9/50da4238badf46e69dd7181c1843fd2a/FLAGeb17d5dd1 [2022-11-18 20:48:06,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/e8129d5e9/50da4238badf46e69dd7181c1843fd2a [2022-11-18 20:48:06,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:48:06,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:48:06,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:06,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:48:07,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:48:07,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:06" (1/1) ... [2022-11-18 20:48:07,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182ad4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07, skipping insertion in model container [2022-11-18 20:48:07,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:06" (1/1) ... [2022-11-18 20:48:07,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:48:07,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:48:07,269 WARN L234 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_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-18 20:48:07,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:07,369 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:48:07,390 WARN L234 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_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-18 20:48:07,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:07,447 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:48:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07 WrapperNode [2022-11-18 20:48:07,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:07,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:07,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:48:07,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:48:07,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,514 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 268 [2022-11-18 20:48:07,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:07,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:48:07,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:48:07,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:48:07,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:48:07,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:48:07,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:48:07,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:48:07,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (1/1) ... [2022-11-18 20:48:07,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:07,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:07,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:48:07,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:48:07,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:48:07,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:48:07,823 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:48:07,825 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:48:08,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:48:08,479 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:48:08,479 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:48:08,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:08 BoogieIcfgContainer [2022-11-18 20:48:08,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:48:08,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:48:08,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:48:08,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:48:08,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:48:06" (1/3) ... [2022-11-18 20:48:08,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc7a08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:08, skipping insertion in model container [2022-11-18 20:48:08,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:07" (2/3) ... [2022-11-18 20:48:08,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc7a08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:08, skipping insertion in model container [2022-11-18 20:48:08,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:08" (3/3) ... [2022-11-18 20:48:08,494 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:08,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:48:08,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:48:08,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:48:08,590 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;@635ebd2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:48:08,591 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:48:08,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 40 states have internal predecessors, (63), 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) [2022-11-18 20:48:08,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:48:08,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:08,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:08,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1178400828, now seen corresponding path program 1 times [2022-11-18 20:48:08,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:08,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974826889] [2022-11-18 20:48:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:08,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:09,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:09,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:09,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974826889] [2022-11-18 20:48:09,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974826889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:09,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:09,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:48:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333215660] [2022-11-18 20:48:09,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:09,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:48:09,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:09,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:48:09,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:48:09,583 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 40 states have internal predecessors, (63), 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 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-18 20:48:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:09,749 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2022-11-18 20:48:09,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:48:09,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 [2022-11-18 20:48:09,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:09,767 INFO L225 Difference]: With dead ends: 118 [2022-11-18 20:48:09,767 INFO L226 Difference]: Without dead ends: 79 [2022-11-18 20:48:09,771 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 [2022-11-18 20:48:09,778 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 147 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 148 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 [2022-11-18 20:48:09,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 148 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:09,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-18 20:48:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 39. [2022-11-18 20:48:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.5526315789473684) internal successors, (59), 38 states have internal predecessors, (59), 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) [2022-11-18 20:48:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 59 transitions. [2022-11-18 20:48:09,846 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 59 transitions. Word has length 11 [2022-11-18 20:48:09,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:09,848 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 59 transitions. [2022-11-18 20:48:09,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-18 20:48:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2022-11-18 20:48:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:48:09,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:09,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:09,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:48:09,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:09,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:09,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2126004980, now seen corresponding path program 1 times [2022-11-18 20:48:09,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:09,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585106654] [2022-11-18 20:48:09,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:09,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:48:09,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:48:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:48:10,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:48:10,024 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:48:10,026 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:48:10,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:48:10,033 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 20:48:10,037 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:48:10,063 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:48:10,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:48:10 BoogieIcfgContainer [2022-11-18 20:48:10,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:48:10,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:48:10,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:48:10,074 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:48:10,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:08" (3/4) ... [2022-11-18 20:48:10,078 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:48:10,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:48:10,080 INFO L158 Benchmark]: Toolchain (without parser) took 3087.37ms. Allocated memory is still 151.0MB. Free memory was 118.7MB in the beginning and 106.1MB in the end (delta: 12.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-11-18 20:48:10,080 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:10,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.05ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 124.1MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:48:10,083 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.00ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 121.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:10,084 INFO L158 Benchmark]: Boogie Preprocessor took 44.85ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:10,085 INFO L158 Benchmark]: RCFGBuilder took 920.88ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 94.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 20:48:10,085 INFO L158 Benchmark]: TraceAbstraction took 1587.61ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 106.1MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:10,086 INFO L158 Benchmark]: Witness Printer took 5.13ms. Allocated memory is still 151.0MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:10,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 45.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.05ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 124.1MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.00ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 121.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.85ms. Allocated memory is still 151.0MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.88ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 94.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1587.61ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 106.1MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.13ms. Allocated memory is still 151.0MB. Free memory is still 106.1MB. 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 86, overapproximation of bitwiseOr at line 84, overapproximation of bitwiseAnd at line 89. 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_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 32); [L29] const SORT_8 msb_SORT_8 = (SORT_8)1 << (32 - 1); [L31] const SORT_1 var_5 = 0; [L32] const SORT_8 var_10 = 0; [L33] const SORT_1 var_19 = 1; [L35] SORT_1 input_2; [L36] SORT_1 input_3; [L37] SORT_1 input_4; [L38] SORT_1 input_34; [L39] SORT_1 input_37; [L40] SORT_1 input_41; [L41] SORT_1 input_50; [L42] SORT_1 input_53; [L43] SORT_1 input_57; [L45] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L51] SORT_1 init_7_arg_1 = var_5; [L52] state_6 = init_7_arg_1 [L53] SORT_1 init_13_arg_1 = var_5; [L54] state_12 = init_13_arg_1 [L55] SORT_1 init_27_arg_1 = var_5; [L56] state_26 = init_27_arg_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0] [L59] input_2 = __VERIFIER_nondet_uchar() [L60] input_3 = __VERIFIER_nondet_uchar() [L61] input_4 = __VERIFIER_nondet_uchar() [L62] input_34 = __VERIFIER_nondet_uchar() [L63] input_37 = __VERIFIER_nondet_uchar() [L64] input_41 = __VERIFIER_nondet_uchar() [L65] input_50 = __VERIFIER_nondet_uchar() [L66] input_53 = __VERIFIER_nondet_uchar() [L67] input_57 = __VERIFIER_nondet_uchar() [L70] SORT_1 var_9_arg_0 = state_6; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0, var_9_arg_0=0] [L71] var_9_arg_0 = var_9_arg_0 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_19=1, var_5=0, var_9_arg_0=0] [L72] SORT_8 var_9 = var_9_arg_0; [L73] SORT_8 var_11_arg_0 = var_9; [L74] SORT_8 var_11_arg_1 = var_10; [L75] SORT_1 var_11 = var_11_arg_0 == var_11_arg_1; [L76] SORT_1 var_14_arg_0 = state_12; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14_arg_0=0, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L77] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14_arg_0=0, var_19=1, var_5=0, var_9=0, var_9_arg_0=0] [L78] SORT_8 var_14 = var_14_arg_0; [L79] SORT_8 var_15_arg_0 = var_14; [L80] SORT_8 var_15_arg_1 = var_10; [L81] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L82] SORT_1 var_16_arg_0 = var_11; [L83] SORT_1 var_16_arg_1 = var_15; [L84] SORT_1 var_16 = var_16_arg_0 | var_16_arg_1; [L85] SORT_1 var_20_arg_0 = var_16; [L86] SORT_1 var_20 = ~var_20_arg_0; [L87] SORT_1 var_21_arg_0 = var_19; [L88] SORT_1 var_21_arg_1 = var_20; [L89] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=255, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=255, var_5=0, var_9=0, var_9_arg_0=0] [L90] var_21 = var_21 & mask_SORT_1 VAL [init_13_arg_1=0, init_27_arg_1=0, init_7_arg_1=0, input_2=5, input_3=4, input_34=7, input_37=2, input_4=8, input_41=3, input_50=1, input_53=9, input_57=6, mask_SORT_1=1, mask_SORT_8=4294967295, msb_SORT_1=1, msb_SORT_8=2147483648, state_12=0, state_24=0, state_25=0, state_26=0, state_6=0, var_10=0, var_11=1, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_15=1, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_16_arg_0=1, var_16_arg_1=1, var_19=1, var_20=255, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=255, var_5=0, var_9=0, var_9_arg_0=0] [L91] SORT_1 bad_22_arg_0 = var_21; [L92] CALL __VERIFIER_assert(!(bad_22_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, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 148 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 70 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=41occurred 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, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2022-11-18 20:48:10,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro --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 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 --- 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-8393723 [2022-11-18 20:48:12,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:12,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:12,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:12,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:12,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:12,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:12,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:12,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:12,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:12,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:12,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:12,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:12,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:12,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:12,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:12,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:12,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:12,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:12,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:12,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:12,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:12,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:12,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:48:12,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:48:12,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:48:12,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:48:12,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:48:12,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:48:12,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:48:12,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:48:12,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:48:12,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:48:12,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:48:12,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:48:12,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:48:12,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:48:12,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:48:12,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:48:12,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:48:12,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:48:12,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 20:48:12,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:48:12,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:48:12,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:48:12,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:48:12,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:48:12,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:48:12,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:48:12,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:48:12,958 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:48:12,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:48:12,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:48:12,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:48:12,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:48:12,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:48:12,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:48:12,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:48:12,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:48:12,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:48:12,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:48:12,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:48:12,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:48:12,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:48:12,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:48:12,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:12,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:48:12,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:48:12,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:48:12,966 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:48:12,966 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:48:12,966 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:48:12,966 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:48:12,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:48:12,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:48:12,967 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_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b27e5745b5f05e947019d23e2bd6132de679912fee429e880b6bc149e2579c3 [2022-11-18 20:48:13,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:48:13,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:48:13,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:48:13,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:48:13,435 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:48:13,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:13,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/f712a8c68/c9790ba488ee4965a043abfbfeb27b4d/FLAGc8e888017 [2022-11-18 20:48:14,234 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:48:14,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:14,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/f712a8c68/c9790ba488ee4965a043abfbfeb27b4d/FLAGc8e888017 [2022-11-18 20:48:14,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/data/f712a8c68/c9790ba488ee4965a043abfbfeb27b4d [2022-11-18 20:48:14,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:48:14,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:48:14,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:14,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:48:14,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:48:14,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b8a298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14, skipping insertion in model container [2022-11-18 20:48:14,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:14,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:48:14,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:48:14,709 WARN L234 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_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-18 20:48:14,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:14,821 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:48:14,882 WARN L234 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_79d68a5e-4935-4473-bf0c-d40860fd2541/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Rrobin.c[1107,1120] [2022-11-18 20:48:14,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:14,980 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:48:14,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14 WrapperNode [2022-11-18 20:48:14,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:14,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:14,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:48:14,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:48:14,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,064 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2022-11-18 20:48:15,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:15,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:48:15,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:48:15,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:48:15,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,136 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:48:15,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:48:15,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:48:15,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:48:15,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (1/1) ... [2022-11-18 20:48:15,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:15,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:15,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:48:15,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:48:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:48:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:48:15,426 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:48:15,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:48:15,843 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:48:15,852 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:48:15,853 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:48:15,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:15 BoogieIcfgContainer [2022-11-18 20:48:15,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:48:15,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:48:15,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:48:15,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:48:15,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:48:14" (1/3) ... [2022-11-18 20:48:15,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a88a5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:15, skipping insertion in model container [2022-11-18 20:48:15,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:14" (2/3) ... [2022-11-18 20:48:15,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a88a5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:15, skipping insertion in model container [2022-11-18 20:48:15,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:15" (3/3) ... [2022-11-18 20:48:15,866 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Rrobin.c [2022-11-18 20:48:15,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:48:15,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:48:15,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:48:15,957 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;@129732, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:48:15,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:48:15,963 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) [2022-11-18 20:48:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:48:15,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:15,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:48:15,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 20:48:15,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:48:15,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449192783] [2022-11-18 20:48:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:15,999 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 [2022-11-18 20:48:15,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:48:16,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:48:16,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 20:48:16,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:16,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:16,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:48:16,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449192783] [2022-11-18 20:48:16,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449192783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:16,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:16,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:48:16,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414042159] [2022-11-18 20:48:16,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:16,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:48:16,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:48:16,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:48:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:48:16,599 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) [2022-11-18 20:48:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:16,712 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 20:48:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:48:16,716 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 [2022-11-18 20:48:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:16,725 INFO L225 Difference]: With dead ends: 20 [2022-11-18 20:48:16,726 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 20:48:16,730 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 [2022-11-18 20:48:16,735 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:16,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:16,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 20:48:16,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 20:48:16,787 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) [2022-11-18 20:48:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 20:48:16,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 20:48:16,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:16,791 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 20:48:16,792 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) [2022-11-18 20:48:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 20:48:16,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:48:16,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:16,793 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:16,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:17,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:17,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:17,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:17,009 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 20:48:17,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:48:17,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256659429] [2022-11-18 20:48:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:17,012 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 [2022-11-18 20:48:17,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:48:17,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:48:17,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:17,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-18 20:48:17,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:18,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:18,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:20,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:48:20,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256659429] [2022-11-18 20:48:20,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256659429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:20,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:48:20,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 20:48:20,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146943166] [2022-11-18 20:48:20,950 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:20,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:48:20,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:48:20,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:48:20,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:48:20,955 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) [2022-11-18 20:48:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:21,056 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 20:48:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:48:21,058 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 [2022-11-18 20:48:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:21,059 INFO L225 Difference]: With dead ends: 16 [2022-11-18 20:48:21,059 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 20:48:21,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:48:21,061 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:21,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-11-18 20:48:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 20:48:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 20:48:21,069 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) [2022-11-18 20:48:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 20:48:21,071 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 20:48:21,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:21,074 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 20:48:21,074 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) [2022-11-18 20:48:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 20:48:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:48:21,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:21,081 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 20:48:21,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:21,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:21,295 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:48:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:21,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 20:48:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:48:21,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297343769] [2022-11-18 20:48:21,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:48:21,298 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 [2022-11-18 20:48:21,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:48:21,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:48:21,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:21,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:48:21,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:21,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 96 conjunts are in the unsatisfiable core [2022-11-18 20:48:21,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:28,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:31,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:31,781 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:48:31,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297343769] [2022-11-18 20:48:31,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297343769] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:31,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:48:31,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 20:48:31,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880456221] [2022-11-18 20:48:31,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:31,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:48:31,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:48:31,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:48:31,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:48:31,785 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-11-18 20:48:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:33,239 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-18 20:48:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:48:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 [2022-11-18 20:48:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:33,240 INFO L225 Difference]: With dead ends: 12 [2022-11-18 20:48:33,240 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:48:33,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:48:33,242 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:33,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 7 Unchecked, 0.0s Time] [2022-11-18 20:48:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:48:33,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:48:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:48:33,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-18 20:48:33,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:33,244 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:48:33,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2022-11-18 20:48:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:48:33,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:48:33,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:48:33,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:48:33,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:48:33,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:48:33,580 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:48:33,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:48:33,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:48:33,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-18 20:48:33,581 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 207) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start_main_~var_5~0#1| |ULTIMATE.start_main_~state_26~0#1|) (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_6~0#1| |ULTIMATE.start_main_~var_5~0#1|) (= |ULTIMATE.start_main_~var_5~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_28_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_31_arg_0~0#1| (_ BitVec 8))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_28_arg_0~0#1|))))) (.cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_31_arg_0~0#1|)))))) (and (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse2))))))))))) |ULTIMATE.start_main_~state_6~0#1|) (= ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse3))))))))))) |ULTIMATE.start_main_~state_12~0#1|) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse3))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (_ bv0 8))))) .cse1))) [2022-11-18 20:48:33,582 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 207) no Hoare annotation was computed. [2022-11-18 20:48:33,582 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-18 20:48:33,582 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-18 20:48:33,582 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-18 20:48:33,582 INFO L895 garLoopResultBuilder]: At program point L208(lines 22 209) the Hoare annotation is: false [2022-11-18 20:48:33,586 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-18 20:48:33,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:48:33,598 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,599 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,599 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,600 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,605 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,606 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,606 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,611 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:48:33 BoogieIcfgContainer [2022-11-18 20:48:33,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:48:33,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:48:33,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:48:33,614 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:48:33,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:15" (3/4) ... [2022-11-18 20:48:33,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:48:33,629 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 20:48:33,629 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:48:33,630 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:48:33,658 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv8 == mask_SORT_1 && var_5 == state_26) && state_6 == 0bv8) && state_6 == var_5) && var_5 == state_12) && var_10 == 0bv32) || ((((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_28_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_31_arg_0~0#1 : bv8 :: (~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_6 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_12) && ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_0~0#1))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) && var_10 == 0bv32) [2022-11-18 20:48:33,698 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:48:33,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:48:33,699 INFO L158 Benchmark]: Toolchain (without parser) took 19175.74ms. Allocated memory was 79.7MB in the beginning and 192.9MB in the end (delta: 113.2MB). Free memory was 62.8MB in the beginning and 168.3MB in the end (delta: -105.5MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,700 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:33,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.18ms. Allocated memory is still 79.7MB. Free memory was 62.6MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.22ms. Allocated memory is still 79.7MB. Free memory was 60.4MB in the beginning and 58.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,701 INFO L158 Benchmark]: Boogie Preprocessor took 86.59ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 56.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,702 INFO L158 Benchmark]: RCFGBuilder took 698.91ms. Allocated memory is still 79.7MB. Free memory was 56.1MB in the beginning and 36.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,702 INFO L158 Benchmark]: TraceAbstraction took 17755.00ms. Allocated memory was 79.7MB in the beginning and 192.9MB in the end (delta: 113.2MB). Free memory was 35.7MB in the beginning and 172.5MB in the end (delta: -136.7MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,703 INFO L158 Benchmark]: Witness Printer took 84.85ms. Allocated memory is still 192.9MB. Free memory was 172.5MB in the beginning and 168.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:48:33,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 79.7MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.18ms. Allocated memory is still 79.7MB. Free memory was 62.6MB in the beginning and 60.4MB in the end (delta: 2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.22ms. Allocated memory is still 79.7MB. Free memory was 60.4MB in the beginning and 58.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.59ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 56.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 698.91ms. Allocated memory is still 79.7MB. Free memory was 56.1MB in the beginning and 36.4MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 17755.00ms. Allocated memory was 79.7MB in the beginning and 192.9MB in the end (delta: 113.2MB). Free memory was 35.7MB in the beginning and 172.5MB in the end (delta: -136.7MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. * Witness Printer took 84.85ms. Allocated memory is still 192.9MB. Free memory was 172.5MB in the beginning and 168.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 15 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 91 HoareAnnotationTreeSize, 2 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 80 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 14.3s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 1386 SizeOfPredicates, 200 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 6/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant [2022-11-18 20:48:33,729 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,730 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,730 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,730 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,731 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,733 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,734 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_0~0#1,QUANTIFIED] [2022-11-18 20:48:33,734 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_31_arg_0~0#1,QUANTIFIED] Derived loop invariant: (((((1bv8 == mask_SORT_1 && var_5 == state_26) && state_6 == 0bv8) && state_6 == var_5) && var_5 == state_12) && var_10 == 0bv32) || ((((1bv8 == mask_SORT_1 && var_5 == 0bv8) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_28_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_31_arg_0~0#1 : bv8 :: (~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_6 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_0~0#1))[7:0])[7:0])[7:0])[7:0])[7:0])[7:0])[7:0] == state_12) && ~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_31_arg_0~0#1))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == 0bv8)) && var_10 == 0bv32) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:48:33,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79d68a5e-4935-4473-bf0c-d40860fd2541/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE