./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN --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 b8b117d30748a7cc4f3f5d7fcfe97d44c4e3aeb101b917b233cc5bb356acb00c --- 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-6b4ec56 [2022-11-20 12:16:05,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:16:05,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:16:05,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:16:05,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:16:05,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:16:05,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:16:05,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:16:05,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:16:05,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:16:05,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:16:05,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:16:05,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:16:05,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:16:05,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:16:05,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:16:05,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:16:05,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:16:05,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:16:05,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:16:05,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:16:05,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:16:05,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:16:05,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:16:05,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:16:05,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:16:05,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:16:05,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:16:05,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:16:05,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:16:05,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:16:05,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:16:05,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:16:05,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:16:05,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:16:05,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:16:05,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:16:05,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:16:05,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:16:05,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:16:05,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:16:05,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:16:05,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:16:05,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:16:05,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:16:05,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:16:05,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:16:05,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:16:05,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:16:05,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:16:05,443 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:16:05,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:16:05,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:16:05,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:16:05,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:16:05,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:16:05,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:16:05,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:16:05,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:16:05,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:16:05,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:16:05,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:16:05,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:16:05,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:05,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:16:05,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:16:05,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:16:05,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:16:05,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:16:05,450 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:16:05,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:16:05,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:16:05,451 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_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8b117d30748a7cc4f3f5d7fcfe97d44c4e3aeb101b917b233cc5bb356acb00c [2022-11-20 12:16:05,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:16:05,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:16:05,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:16:05,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:16:05,810 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:16:05,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c [2022-11-20 12:16:09,781 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:16:10,025 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:16:10,025 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c [2022-11-20 12:16:10,035 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/a9a46cbc4/c7aa369ca362417496655a7969ba4df0/FLAG7352a1416 [2022-11-20 12:16:10,053 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/a9a46cbc4/c7aa369ca362417496655a7969ba4df0 [2022-11-20 12:16:10,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:16:10,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:16:10,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:10,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:16:10,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:16:10,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574a82ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10, skipping insertion in model container [2022-11-20 12:16:10,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:16:10,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:16:10,284 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c[1107,1120] [2022-11-20 12:16:10,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:10,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:16:10,370 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c[1107,1120] [2022-11-20 12:16:10,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:10,452 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:16:10,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10 WrapperNode [2022-11-20 12:16:10,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:10,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:10,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:16:10,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:16:10,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,507 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 150 [2022-11-20 12:16:10,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:10,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:16:10,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:16:10,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:16:10,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:16:10,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:16:10,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:16:10,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:16:10,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (1/1) ... [2022-11-20 12:16:10,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:10,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:16:10,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:16:10,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:16:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:16:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:16:10,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:16:10,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:16:11,221 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:16:11,271 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:16:11,271 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:16:11,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11 BoogieIcfgContainer [2022-11-20 12:16:11,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:16:11,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:16:11,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:16:11,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:16:11,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:16:10" (1/3) ... [2022-11-20 12:16:11,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bb93a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:11, skipping insertion in model container [2022-11-20 12:16:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:10" (2/3) ... [2022-11-20 12:16:11,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bb93a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:11, skipping insertion in model container [2022-11-20 12:16:11,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11" (3/3) ... [2022-11-20 12:16:11,288 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal18.c [2022-11-20 12:16:11,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:16:11,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:16:11,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:16:11,439 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;@1d98eed1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:16:11,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:16:11,455 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) [2022-11-20 12:16:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:16:11,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:11,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:16:11,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:11,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:16:11,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:16:11,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633836140] [2022-11-20 12:16:11,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:11,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:16:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:16:11,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:16:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:16:11,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:16:11,986 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:16:11,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:16:11,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:16:11,998 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 12:16:12,003 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:16:12,035 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:16:12,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:16:12 BoogieIcfgContainer [2022-11-20 12:16:12,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:16:12,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:16:12,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:16:12,044 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:16:12,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:11" (3/4) ... [2022-11-20 12:16:12,049 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:16:12,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:16:12,050 INFO L158 Benchmark]: Toolchain (without parser) took 1992.14ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 142.0MB in the end (delta: 11.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-11-20 12:16:12,051 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:12,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 140.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:16:12,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.69ms. Allocated memory is still 199.2MB. Free memory was 140.9MB in the beginning and 138.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:16:12,053 INFO L158 Benchmark]: Boogie Preprocessor took 37.10ms. Allocated memory is still 199.2MB. Free memory was 138.4MB in the beginning and 137.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:12,054 INFO L158 Benchmark]: RCFGBuilder took 727.57ms. Allocated memory is still 199.2MB. Free memory was 137.1MB in the beginning and 168.3MB in the end (delta: -31.2MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-11-20 12:16:12,055 INFO L158 Benchmark]: TraceAbstraction took 763.67ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 142.5MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:12,055 INFO L158 Benchmark]: Witness Printer took 5.65ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 142.0MB in the end (delta: 546.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:12,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.43ms. Allocated memory is still 199.2MB. Free memory was 153.4MB in the beginning and 140.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.69ms. Allocated memory is still 199.2MB. Free memory was 140.9MB in the beginning and 138.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.10ms. Allocated memory is still 199.2MB. Free memory was 138.4MB in the beginning and 137.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 727.57ms. Allocated memory is still 199.2MB. Free memory was 137.1MB in the beginning and 168.3MB in the end (delta: -31.2MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 763.67ms. Allocated memory is still 199.2MB. Free memory was 167.3MB in the beginning and 142.5MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.65ms. Allocated memory is still 199.2MB. Free memory was 142.5MB in the beginning and 142.0MB in the end (delta: 546.0kB). 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 71, overapproximation of bitwiseOr at line 91, overapproximation of bitwiseAnd at line 60. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 2); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (2 - 1); [L31] const SORT_1 var_10 = 0; [L32] const SORT_5 var_14 = 0; [L33] const SORT_1 var_29 = 1; [L34] const SORT_5 var_39 = 1; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L38] SORT_1 input_4; [L39] SORT_5 input_6; [L40] SORT_1 input_7; [L41] SORT_5 input_8; [L42] SORT_5 input_9; [L44] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_5 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L46] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_5 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L49] SORT_1 init_12_arg_1 = var_10; [L50] state_11 = init_12_arg_1 [L51] SORT_5 init_16_arg_1 = var_14; [L52] state_15 = init_16_arg_1 [L53] SORT_1 init_18_arg_1 = var_10; [L54] state_17 = init_18_arg_1 [L55] SORT_5 init_22_arg_1 = var_14; [L56] state_21 = init_22_arg_1 VAL [init_12_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_22_arg_1=0, mask_SORT_1=1, mask_SORT_5=3, msb_SORT_1=1, msb_SORT_5=2, state_11=0, state_15=0, state_17=0, state_21=0, var_10=0, var_14=0, var_29=1, var_39=1] [L59] input_2 = __VERIFIER_nondet_uchar() [L60] input_2 = input_2 & mask_SORT_1 [L61] input_3 = __VERIFIER_nondet_uchar() [L62] input_3 = input_3 & mask_SORT_1 [L63] input_4 = __VERIFIER_nondet_uchar() [L64] input_6 = __VERIFIER_nondet_uchar() [L65] input_7 = __VERIFIER_nondet_uchar() [L66] input_8 = __VERIFIER_nondet_uchar() [L67] input_9 = __VERIFIER_nondet_uchar() [L70] SORT_1 var_13_arg_0 = state_11; [L71] SORT_1 var_13 = ~var_13_arg_0; [L72] SORT_1 var_19_arg_0 = state_17; [L73] SORT_5 var_19_arg_1 = state_15; [L74] SORT_5 var_19_arg_2 = input_6; [L75] SORT_5 var_19 = var_19_arg_0 ? var_19_arg_1 : var_19_arg_2; [L76] SORT_5 var_20_arg_0 = var_19; [L77] SORT_1 var_20 = var_20_arg_0 >> 0; [L78] var_20 = var_20 & mask_SORT_1 [L79] SORT_1 var_23_arg_0 = state_17; [L80] SORT_5 var_23_arg_1 = state_21; [L81] SORT_5 var_23_arg_2 = input_6; [L82] SORT_5 var_23 = var_23_arg_0 ? var_23_arg_1 : var_23_arg_2; [L83] SORT_5 var_24_arg_0 = var_23; [L84] SORT_1 var_24 = var_24_arg_0 >> 0; [L85] var_24 = var_24 & mask_SORT_1 [L86] SORT_1 var_25_arg_0 = var_20; [L87] SORT_1 var_25_arg_1 = var_24; [L88] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L89] SORT_1 var_26_arg_0 = var_13; [L90] SORT_1 var_26_arg_1 = var_25; [L91] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L92] SORT_1 var_30_arg_0 = var_26; [L93] SORT_1 var_30 = ~var_30_arg_0; [L94] SORT_1 var_31_arg_0 = var_29; [L95] SORT_1 var_31_arg_1 = var_30; [L96] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; [L97] var_31 = var_31 & mask_SORT_1 [L98] SORT_1 bad_32_arg_0 = var_31; [L99] CALL __VERIFIER_assert(!(bad_32_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 12:16:12,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN --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 b8b117d30748a7cc4f3f5d7fcfe97d44c4e3aeb101b917b233cc5bb356acb00c --- 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-6b4ec56 [2022-11-20 12:16:15,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:16:15,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:16:15,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:16:15,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:16:15,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:16:15,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:16:15,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:16:15,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:16:15,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:16:15,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:16:15,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:16:15,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:16:15,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:16:15,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:16:15,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:16:15,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:16:15,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:16:15,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:16:15,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:16:15,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:16:15,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:16:15,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:16:15,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:16:15,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:16:15,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:16:15,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:16:15,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:16:15,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:16:15,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:16:15,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:16:15,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:16:15,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:16:15,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:16:15,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:16:15,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:16:15,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:16:15,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:16:15,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:16:15,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:16:15,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:16:15,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:16:15,279 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:16:15,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:16:15,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:16:15,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:16:15,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:16:15,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:16:15,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:16:15,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:16:15,283 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:16:15,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:16:15,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:16:15,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:16:15,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:16:15,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:16:15,285 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:16:15,285 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:16:15,285 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:16:15,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:16:15,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:16:15,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:16:15,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:16:15,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:16:15,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:16:15,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:15,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:16:15,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:16:15,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:16:15,288 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:16:15,288 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:16:15,289 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:16:15,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:16:15,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:16:15,289 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:16:15,290 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_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8b117d30748a7cc4f3f5d7fcfe97d44c4e3aeb101b917b233cc5bb356acb00c [2022-11-20 12:16:15,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:16:15,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:16:15,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:16:15,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:16:15,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:16:15,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c [2022-11-20 12:16:19,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:16:20,062 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:16:20,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c [2022-11-20 12:16:20,093 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/47d149020/28b2dcee2b3546998c5f17cbc7e6fdd1/FLAG1b6b39f61 [2022-11-20 12:16:20,118 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/data/47d149020/28b2dcee2b3546998c5f17cbc7e6fdd1 [2022-11-20 12:16:20,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:16:20,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:16:20,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:20,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:16:20,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:16:20,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2124cb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20, skipping insertion in model container [2022-11-20 12:16:20,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:16:20,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:16:20,437 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c[1107,1120] [2022-11-20 12:16:20,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:20,570 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:16:20,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal18.c[1107,1120] [2022-11-20 12:16:20,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:16:20,654 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:16:20,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20 WrapperNode [2022-11-20 12:16:20,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:16:20,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:20,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:16:20,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:16:20,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,716 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 150 [2022-11-20 12:16:20,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:16:20,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:16:20,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:16:20,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:16:20,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:16:20,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:16:20,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:16:20,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:16:20,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (1/1) ... [2022-11-20 12:16:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:16:20,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:16:20,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:16:20,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:16:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:16:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:16:21,039 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:16:21,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:16:21,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:16:21,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:16:21,469 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:16:21,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:21 BoogieIcfgContainer [2022-11-20 12:16:21,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:16:21,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:16:21,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:16:21,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:16:21,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:16:20" (1/3) ... [2022-11-20 12:16:21,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6d96aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:21, skipping insertion in model container [2022-11-20 12:16:21,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:16:20" (2/3) ... [2022-11-20 12:16:21,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6d96aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:16:21, skipping insertion in model container [2022-11-20 12:16:21,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:21" (3/3) ... [2022-11-20 12:16:21,483 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal18.c [2022-11-20 12:16:21,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:16:21,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:16:21,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:16:21,577 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;@256dbed0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:16:21,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:16:21,583 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) [2022-11-20 12:16:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:16:21,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:21,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:16:21,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:21,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:16:21,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:21,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207868345] [2022-11-20 12:16:21,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:21,617 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 [2022-11-20 12:16:21,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:21,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:16:21,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:21,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:16:21,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:22,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:16:22,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:22,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207868345] [2022-11-20 12:16:22,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207868345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:16:22,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:16:22,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:16:22,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666569242] [2022-11-20 12:16:22,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:16:22,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:16:22,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:22,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:16:22,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:16:22,103 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) [2022-11-20 12:16:22,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:22,174 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 12:16:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:16:22,177 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 [2022-11-20 12:16:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:22,187 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:16:22,188 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 12:16:22,192 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 [2022-11-20 12:16:22,200 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:22,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:16:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 12:16:22,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 12:16:22,243 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) [2022-11-20 12:16:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 12:16:22,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 12:16:22,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:22,247 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 12:16:22,247 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) [2022-11-20 12:16:22,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 12:16:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:16:22,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:22,249 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:16:22,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:22,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:22,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 12:16:22,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:22,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348323544] [2022-11-20 12:16:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:16:22,475 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 [2022-11-20 12:16:22,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:22,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:16:22,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:16:22,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-20 12:16:22,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:23,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:16:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:24,057 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:24,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348323544] [2022-11-20 12:16:24,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348323544] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:16:24,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:16:24,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:16:24,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985816111] [2022-11-20 12:16:24,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:16:24,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:16:24,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:16:24,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:16:24,072 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) [2022-11-20 12:16:24,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:24,181 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 12:16:24,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:16:24,182 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 [2022-11-20 12:16:24,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:24,183 INFO L225 Difference]: With dead ends: 16 [2022-11-20 12:16:24,183 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 12:16:24,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:16:24,187 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:24,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-20 12:16:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 12:16:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 12:16:24,199 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) [2022-11-20 12:16:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 12:16:24,200 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 12:16:24,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:24,201 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 12:16:24,201 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) [2022-11-20 12:16:24,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 12:16:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:16:24,202 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:16:24,202 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 12:16:24,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:24,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:24,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:16:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:16:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 12:16:24,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:16:24,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817694031] [2022-11-20 12:16:24,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:16:24,420 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 [2022-11-20 12:16:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:16:24,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 12:16:24,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:24,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:16:24,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:16:24,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 12:16:24,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:16:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:25,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:16:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:16:26,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:16:26,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817694031] [2022-11-20 12:16:26,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817694031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:16:26,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:16:26,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 12:16:26,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195239332] [2022-11-20 12:16:26,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:16:26,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:16:26,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:16:26,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:16:26,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:16:26,292 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:26,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:16:26,502 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-20 12:16:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:16:26,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 12:16:26,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:16:26,503 INFO L225 Difference]: With dead ends: 14 [2022-11-20 12:16:26,503 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:16:26,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:16:26,505 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:16:26,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 20 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 13 Unchecked, 0.1s Time] [2022-11-20 12:16:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:16:26,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:16:26,508 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) [2022-11-20 12:16:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:16:26,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-20 12:16:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:16:26,509 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:16:26,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:16:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:16:26,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:16:26,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:16:26,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 12:16:26,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:16:26,904 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:16:26,905 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:16:26,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:16:26,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:16:26,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-20 12:16:26,906 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 162) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= (_ bv1 8) |ULTIMATE.start_main_~state_11~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_10~0#1| (_ bv0 8))) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~var_29~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (exists ((|ULTIMATE.start_main_~var_52_arg_2~0#1| (_ BitVec 8))) (let ((.cse1 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_52_arg_2~0#1|)))))) (and (= .cse1 |ULTIMATE.start_main_~state_21~0#1|) (= .cse1 |ULTIMATE.start_main_~state_15~0#1|)))) .cse2 .cse3 .cse4) (and .cse0 (= (_ bv0 8) |ULTIMATE.start_main_~state_11~0#1|) (= |ULTIMATE.start_main_~var_10~0#1| |ULTIMATE.start_main_~state_11~0#1|) .cse4) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_17~0#1|) .cse4))) [2022-11-20 12:16:26,906 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 162) no Hoare annotation was computed. [2022-11-20 12:16:26,906 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-20 12:16:26,906 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-20 12:16:26,906 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-20 12:16:26,907 INFO L895 garLoopResultBuilder]: At program point L163(lines 22 164) the Hoare annotation is: false [2022-11-20 12:16:26,911 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-20 12:16:26,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:16:26,932 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:26,933 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:26,943 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:26,944 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:26,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:16:26 BoogieIcfgContainer [2022-11-20 12:16:26,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:16:26,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:16:26,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:16:26,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:16:26,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:16:21" (3/4) ... [2022-11-20 12:16:26,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:16:26,977 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 12:16:26,978 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 12:16:26,978 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:16:27,014 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (\exists ULTIMATE.start_main_~var_52_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_52_arg_2~0#1)[7:0])[7:0] == state_21 && ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_52_arg_2~0#1)[7:0])[7:0] == state_15)) && 1bv8 == state_11) && var_10 == 0bv8) && 1bv8 == var_29) || (((1bv8 == mask_SORT_1 && 0bv8 == state_11) && var_10 == state_11) && 1bv8 == var_29)) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == state_11) && var_10 == 0bv8) && 0bv8 == state_17) && 1bv8 == var_29) [2022-11-20 12:16:27,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:16:27,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:16:27,051 INFO L158 Benchmark]: Toolchain (without parser) took 6923.18ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 62.0MB in the beginning and 79.8MB in the end (delta: -17.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,051 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:16:27,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 522.92ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 49.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.13ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 46.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,053 INFO L158 Benchmark]: Boogie Preprocessor took 57.09ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,053 INFO L158 Benchmark]: RCFGBuilder took 692.69ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 51.1MB in the end (delta: -5.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,054 INFO L158 Benchmark]: TraceAbstraction took 5474.55ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 50.2MB in the beginning and 84.0MB in the end (delta: -33.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,054 INFO L158 Benchmark]: Witness Printer took 98.20ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 79.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:16:27,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 522.92ms. Allocated memory is still 83.9MB. Free memory was 61.7MB in the beginning and 49.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.13ms. Allocated memory is still 83.9MB. Free memory was 49.2MB in the beginning and 46.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.09ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 692.69ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 51.1MB in the end (delta: -5.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5474.55ms. Allocated memory was 83.9MB in the beginning and 121.6MB in the end (delta: 37.7MB). Free memory was 50.2MB in the beginning and 84.0MB in the end (delta: -33.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 98.20ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 79.8MB 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_52_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#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: 5.4s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 21, 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, 6 NumberOfFragments, 67 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 12 QuantifiedInterpolants, 855 SizeOfPredicates, 108 NumberOfNonLiveVariables, 447 ConjunctsInSsa, 98 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/18 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 [2022-11-20 12:16:27,066 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:27,066 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:27,067 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] [2022-11-20 12:16:27,072 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_52_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (\exists ULTIMATE.start_main_~var_52_arg_2~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_52_arg_2~0#1)[7:0])[7:0] == state_21 && ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_52_arg_2~0#1)[7:0])[7:0] == state_15)) && 1bv8 == state_11) && var_10 == 0bv8) && 1bv8 == var_29) || (((1bv8 == mask_SORT_1 && 0bv8 == state_11) && var_10 == state_11) && 1bv8 == var_29)) || (((((1bv8 == mask_SORT_1 && cond == 1bv32) && 1bv8 == state_11) && var_10 == 0bv8) && 0bv8 == state_17) && 1bv8 == var_29) RESULT: Ultimate proved your program to be correct! [2022-11-20 12:16:27,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b384511d-5e42-4698-a00e-5eafade37a94/bin/uautomizer-ug76WZFUDN/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