./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:46:40,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:40,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:40,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:40,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:40,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:40,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:40,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:40,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:40,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:40,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:40,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:40,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:40,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:40,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:40,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:40,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:40,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:40,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:40,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:40,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:40,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:40,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:40,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:40,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:40,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:40,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:40,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:40,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:40,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:40,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:40,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:40,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:40,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:40,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:40,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:40,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:40,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:40,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:40,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:40,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:40,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:46:40,526 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:40,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:40,528 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:40,528 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:40,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:40,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:40,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:40,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:40,531 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:40,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:40,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:40,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:40,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:40,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:40,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:40,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:40,534 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:40,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:40,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:40,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:40,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:40,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:40,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:40,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:40,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:40,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:40,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:40,538 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:40,538 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:40,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:40,539 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_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-11-16 12:46:40,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:40,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:40,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:40,921 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:40,922 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:40,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:40,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/216499748/828f6ff4d01c49d987d5a7b77d677719/FLAG11b9e3d10 [2022-11-16 12:46:41,507 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:41,507 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:41,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/216499748/828f6ff4d01c49d987d5a7b77d677719/FLAG11b9e3d10 [2022-11-16 12:46:41,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/216499748/828f6ff4d01c49d987d5a7b77d677719 [2022-11-16 12:46:41,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:41,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:41,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:41,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:41,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:41,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:41" (1/1) ... [2022-11-16 12:46:41,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec594f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:41, skipping insertion in model container [2022-11-16 12:46:41,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:41" (1/1) ... [2022-11-16 12:46:41,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:41,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:42,154 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-16 12:46:42,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:42,258 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:42,268 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-16 12:46:42,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:42,340 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:42,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42 WrapperNode [2022-11-16 12:46:42,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:42,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:42,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:42,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:42,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,425 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 459 [2022-11-16 12:46:42,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:42,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:42,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:42,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:42,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,471 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:42,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:42,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:42,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:42,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (1/1) ... [2022-11-16 12:46:42,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:42,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:42,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:42,769 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:42,771 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:43,260 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:43,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:43,274 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:46:43,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:43 BoogieIcfgContainer [2022-11-16 12:46:43,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:43,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:43,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:43,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:43,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:41" (1/3) ... [2022-11-16 12:46:43,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8665a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:43, skipping insertion in model container [2022-11-16 12:46:43,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:42" (2/3) ... [2022-11-16 12:46:43,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8665a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:43, skipping insertion in model container [2022-11-16 12:46:43,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:43" (3/3) ... [2022-11-16 12:46:43,292 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:43,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:43,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:46:43,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:43,394 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;@4959d8d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:43,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:46:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6274509803921569) internal successors, (83), 52 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:43,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 12:46:43,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:43,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:43,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1909394218, now seen corresponding path program 1 times [2022-11-16 12:46:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604193831] [2022-11-16 12:46:43,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:43,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:43,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:43,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:43,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604193831] [2022-11-16 12:46:43,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604193831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:43,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:43,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:46:43,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663716352] [2022-11-16 12:46:43,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:43,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:46:43,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:44,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:46:44,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:46:44,035 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6274509803921569) internal successors, (83), 52 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:44,167 INFO L93 Difference]: Finished difference Result 160 states and 262 transitions. [2022-11-16 12:46:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:46:44,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 12:46:44,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:44,183 INFO L225 Difference]: With dead ends: 160 [2022-11-16 12:46:44,183 INFO L226 Difference]: Without dead ends: 109 [2022-11-16 12:46:44,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:46:44,193 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 207 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:44,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 218 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:46:44,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-16 12:46:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 51. [2022-11-16 12:46:44,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.58) internal successors, (79), 50 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 79 transitions. [2022-11-16 12:46:44,256 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 79 transitions. Word has length 15 [2022-11-16 12:46:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:44,257 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 79 transitions. [2022-11-16 12:46:44,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 79 transitions. [2022-11-16 12:46:44,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 12:46:44,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:44,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:44,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:46:44,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:44,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:44,261 INFO L85 PathProgramCache]: Analyzing trace with hash 940046394, now seen corresponding path program 1 times [2022-11-16 12:46:44,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:44,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804921259] [2022-11-16 12:46:44,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:44,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:46:44,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:46:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:46:44,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:46:44,423 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:46:44,425 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:46:44,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:46:44,430 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-16 12:46:44,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:46:44,468 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-16 12:46:44,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:46:44 BoogieIcfgContainer [2022-11-16 12:46:44,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:46:44,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:46:44,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:46:44,480 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:46:44,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:43" (3/4) ... [2022-11-16 12:46:44,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:46:44,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:46:44,485 INFO L158 Benchmark]: Toolchain (without parser) took 2610.25ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.1MB in the beginning and 73.0MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:46:44,485 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:46:44,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 462.97ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 80.8MB in the end (delta: -28.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:46:44,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.78ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 76.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:46:44,487 INFO L158 Benchmark]: Boogie Preprocessor took 52.63ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 74.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:46:44,487 INFO L158 Benchmark]: RCFGBuilder took 798.56ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 43.2MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 12:46:44,488 INFO L158 Benchmark]: TraceAbstraction took 1198.84ms. Allocated memory is still 111.1MB. Free memory was 42.7MB in the beginning and 73.7MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:46:44,488 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 73.0MB in the end (delta: 665.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:46:44,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 90.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 462.97ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 80.8MB in the end (delta: -28.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.78ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 76.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.63ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 74.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 798.56ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 43.2MB in the end (delta: 30.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1198.84ms. Allocated memory is still 111.1MB. Free memory was 42.7MB in the beginning and 73.7MB in the end (delta: -31.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 73.0MB in the end (delta: 665.9kB). 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 145, overapproximation of bitwiseOr at line 143, overapproximation of bitwiseAnd at line 148. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L32] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L34] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 3); [L35] const SORT_59 msb_SORT_59 = (SORT_59)1 << (3 - 1); [L37] const SORT_16 var_17 = 0; [L38] const SORT_16 var_20 = 3; [L39] const SORT_3 var_22 = 1; [L40] const SORT_3 var_36 = 0; [L41] const SORT_16 var_77 = 2; [L42] const SORT_16 var_80 = 1; [L43] const SORT_59 var_92 = 0; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_3 input_6; [L49] SORT_3 input_7; [L50] SORT_3 input_8; [L51] SORT_1 input_9; [L52] SORT_3 input_10; [L53] SORT_3 input_11; [L54] SORT_1 input_12; [L55] SORT_3 input_13; [L56] SORT_3 input_14; [L57] SORT_3 input_15; [L58] SORT_1 input_32; [L59] SORT_3 input_34; [L60] SORT_1 input_39; [L61] SORT_3 input_41; [L62] SORT_1 input_47; [L63] SORT_1 input_53; [L64] SORT_1 input_55; [L65] SORT_1 input_57; [L66] SORT_59 input_60; [L67] SORT_59 input_66; [L68] SORT_1 input_69; [L69] SORT_3 input_73; [L71] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L72] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L73] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] SORT_3 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L82] SORT_16 init_19_arg_1 = var_17; [L83] state_18 = init_19_arg_1 [L84] SORT_3 init_24_arg_1 = var_22; [L85] state_23 = init_24_arg_1 [L86] SORT_3 init_38_arg_1 = var_36; [L87] state_37 = init_38_arg_1 [L88] SORT_3 init_44_arg_1 = var_36; [L89] state_43 = init_44_arg_1 [L90] SORT_3 init_46_arg_1 = var_36; [L91] state_45 = init_46_arg_1 [L92] SORT_3 init_50_arg_1 = var_36; [L93] state_49 = init_50_arg_1 [L94] SORT_3 init_52_arg_1 = var_36; [L95] state_51 = init_52_arg_1 [L96] SORT_3 init_63_arg_1 = var_36; [L97] state_62 = init_63_arg_1 [L98] SORT_3 init_65_arg_1 = var_36; [L99] state_64 = init_65_arg_1 [L100] SORT_3 init_72_arg_1 = var_36; [L101] state_71 = init_72_arg_1 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L104] input_2 = __VERIFIER_nondet_uint() [L105] input_4 = __VERIFIER_nondet_uchar() [L106] input_5 = __VERIFIER_nondet_uint() [L107] input_6 = __VERIFIER_nondet_uchar() [L108] input_7 = __VERIFIER_nondet_uchar() [L109] input_7 = input_7 & mask_SORT_3 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_2=2147483662, input_4=12, input_5=2147483657, input_6=20, input_7=0, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L110] input_8 = __VERIFIER_nondet_uchar() [L111] input_8 = input_8 & mask_SORT_3 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_2=2147483662, input_4=12, input_5=2147483657, input_6=20, input_7=0, input_8=0, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L112] input_9 = __VERIFIER_nondet_uint() [L113] input_10 = __VERIFIER_nondet_uchar() [L114] input_10 = input_10 & mask_SORT_3 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_10=0, input_2=2147483662, input_4=12, input_5=2147483657, input_6=20, input_7=0, input_8=0, input_9=2147483659, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L115] input_11 = __VERIFIER_nondet_uchar() [L116] input_11 = input_11 & mask_SORT_3 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_10=0, input_11=0, input_2=2147483662, input_4=12, input_5=2147483657, input_6=20, input_7=0, input_8=0, input_9=2147483659, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L117] input_12 = __VERIFIER_nondet_uint() [L118] input_13 = __VERIFIER_nondet_uchar() [L119] input_14 = __VERIFIER_nondet_uchar() [L120] input_15 = __VERIFIER_nondet_uchar() [L121] input_32 = __VERIFIER_nondet_uint() [L122] input_34 = __VERIFIER_nondet_uchar() [L123] input_39 = __VERIFIER_nondet_uint() [L124] input_41 = __VERIFIER_nondet_uchar() [L125] input_47 = __VERIFIER_nondet_uint() [L126] input_53 = __VERIFIER_nondet_uint() [L127] input_55 = __VERIFIER_nondet_uint() [L128] input_57 = __VERIFIER_nondet_uint() [L129] input_60 = __VERIFIER_nondet_uchar() [L130] input_66 = __VERIFIER_nondet_uchar() [L131] input_69 = __VERIFIER_nondet_uint() [L132] input_73 = __VERIFIER_nondet_uchar() [L135] SORT_16 var_21_arg_0 = state_18; [L136] SORT_16 var_21_arg_1 = var_20; [L137] SORT_3 var_21 = var_21_arg_0 != var_21_arg_1; [L138] SORT_3 var_25_arg_0 = state_23; [L139] SORT_3 var_25_arg_1 = var_22; [L140] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L141] SORT_3 var_26_arg_0 = var_21; [L142] SORT_3 var_26_arg_1 = var_25; [L143] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L144] SORT_3 var_29_arg_0 = var_26; [L145] SORT_3 var_29 = ~var_29_arg_0; [L146] SORT_3 var_30_arg_0 = var_22; [L147] SORT_3 var_30_arg_1 = var_29; [L148] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_10=0, input_11=0, input_12=2147483667, input_13=13, input_14=15, input_15=7, input_2=2147483662, input_32=2147483664, input_34=1, input_39=2147483666, input_4=12, input_41=17, input_47=2147483652, input_5=2147483657, input_53=2147483653, input_55=2147483669, input_57=2147483650, input_6=20, input_60=6, input_66=3, input_69=2147483656, input_7=0, input_73=10, input_8=0, input_9=2147483659, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_21=1, var_21_arg_0=0, var_21_arg_1=3, var_22=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_26=1, var_26_arg_0=1, var_26_arg_1=1, var_29=2, var_29_arg_0=1, var_30=1, var_30_arg_0=1, var_30_arg_1=2, var_36=0, var_77=2, var_80=1, var_92=0] [L149] var_30 = var_30 & mask_SORT_3 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, input_10=0, input_11=0, input_12=2147483667, input_13=13, input_14=15, input_15=7, input_2=2147483662, input_32=2147483664, input_34=1, input_39=2147483666, input_4=12, input_41=17, input_47=2147483652, input_5=2147483657, input_53=2147483653, input_55=2147483669, input_57=2147483650, input_6=20, input_60=6, input_66=3, input_69=2147483656, input_7=0, input_73=10, input_8=0, input_9=2147483659, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_21=1, var_21_arg_0=0, var_21_arg_1=3, var_22=1, var_25=1, var_25_arg_0=1, var_25_arg_1=1, var_26=1, var_26_arg_0=1, var_26_arg_1=1, var_29=2, var_29_arg_0=1, var_30=1, var_30_arg_0=1, var_30_arg_1=2, var_36=0, var_77=2, var_80=1, var_92=0] [L150] SORT_3 bad_31_arg_0 = var_30; [L151] CALL __VERIFIER_assert(!(bad_31_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, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 218 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 100 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 58 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:46:44,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:46:46,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:46,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:46,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:46,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:46,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:46,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:46,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:46,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:46,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:46,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:46,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:46,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:46,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:46,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:46,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:46,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:46,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:46,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:46,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:46,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:46,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:46,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:46,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:46,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:46,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:46,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:46,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:46,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:46,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:46,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:46,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:46,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:46,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:46,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:46,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:46,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:46,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:46,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:46,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:46,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:47,002 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:46:47,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:47,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:47,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:47,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:47,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:47,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:47,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:47,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:47,049 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:47,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:47,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:47,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:47,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:47,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:47,052 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:46:47,052 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:46:47,053 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:46:47,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:47,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:47,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:47,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:47,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:47,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:47,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:47,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:47,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:47,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:47,056 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:46:47,056 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:46:47,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:47,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:47,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:47,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:46:47,057 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_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-11-16 12:46:47,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:47,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:47,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:47,510 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:47,510 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:47,512 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:47,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/6ce935e4d/939cdac88ea94ecb88c7ae2471a415cd/FLAG4a59114f4 [2022-11-16 12:46:48,104 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:48,105 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:48,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/6ce935e4d/939cdac88ea94ecb88c7ae2471a415cd/FLAG4a59114f4 [2022-11-16 12:46:48,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/data/6ce935e4d/939cdac88ea94ecb88c7ae2471a415cd [2022-11-16 12:46:48,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:48,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:48,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:48,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:48,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:48,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6181f650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48, skipping insertion in model container [2022-11-16 12:46:48,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:48,513 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:48,641 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-16 12:46:48,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:48,796 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:48,807 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-16 12:46:48,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:48,871 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:48,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48 WrapperNode [2022-11-16 12:46:48,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:48,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:48,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:48,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:48,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,948 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2022-11-16 12:46:48,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:48,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:48,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:48,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:48,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:48,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:49,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:49,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:49,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:49,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (1/1) ... [2022-11-16 12:46:49,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:49,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:49,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:49,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:49,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:49,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:49,250 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:49,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:49,843 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:49,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:49,855 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:46:49,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:49 BoogieIcfgContainer [2022-11-16 12:46:49,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:49,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:49,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:49,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:49,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:48" (1/3) ... [2022-11-16 12:46:49,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537e017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:49, skipping insertion in model container [2022-11-16 12:46:49,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:48" (2/3) ... [2022-11-16 12:46:49,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537e017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:49, skipping insertion in model container [2022-11-16 12:46:49,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:49" (3/3) ... [2022-11-16 12:46:49,867 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-16 12:46:49,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:49,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:46:49,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:49,984 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;@2ea698b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:49,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:46:49,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-16 12:46:49,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:49,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-16 12:46:49,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:50,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-16 12:46:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:46:50,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65992053] [2022-11-16 12:46:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:50,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:50,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:46:50,047 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:46:50,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:46:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:50,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:46:50,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:50,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:50,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:46:50,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:46:50,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65992053] [2022-11-16 12:46:50,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65992053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:50,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:50,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:46:50,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582999456] [2022-11-16 12:46:50,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:50,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:46:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:46:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:46:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:46:50,470 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:50,562 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-16 12:46:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:46:50,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-16 12:46:50,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:50,572 INFO L225 Difference]: With dead ends: 20 [2022-11-16 12:46:50,572 INFO L226 Difference]: Without dead ends: 11 [2022-11-16 12:46:50,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:46:50,578 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:50,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:46:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-16 12:46:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-16 12:46:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-16 12:46:50,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-16 12:46:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:50,635 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-16 12:46:50,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-16 12:46:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 12:46:50,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:50,636 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:50,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:50,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:50,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:50,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:50,838 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-16 12:46:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:46:50,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867439767] [2022-11-16 12:46:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:46:50,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:46:50,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:46:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:51,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-16 12:46:51,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:51,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:46:51,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:51,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:46:51,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867439767] [2022-11-16 12:46:51,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867439767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:46:51,814 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:46:51,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-16 12:46:51,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32319681] [2022-11-16 12:46:51,814 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:46:51,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:46:51,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:46:51,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:46:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:46:51,818 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:51,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:51,922 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-16 12:46:51,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:46:51,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 12:46:51,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:51,924 INFO L225 Difference]: With dead ends: 16 [2022-11-16 12:46:51,924 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 12:46:51,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:46:51,926 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:51,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 8 Unchecked, 0.1s Time] [2022-11-16 12:46:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 12:46:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-16 12:46:51,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-16 12:46:51,931 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-16 12:46:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:51,932 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-16 12:46:51,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-16 12:46:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 12:46:51,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:51,933 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-16 12:46:51,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:52,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:52,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:52,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:52,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-16 12:46:52,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:46:52,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670081715] [2022-11-16 12:46:52,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:46:52,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:52,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:46:52,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:46:52,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:46:52,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:46:52,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:46:52,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-16 12:46:52,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:46:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:53,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:46:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:55,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:46:55,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670081715] [2022-11-16 12:46:55,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1670081715] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:46:55,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:46:55,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-16 12:46:55,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7404107] [2022-11-16 12:46:55,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:46:55,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:46:55,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:46:55,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:46:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:46:55,504 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:46:55,627 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-16 12:46:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:46:55,629 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 12:46:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:46:55,629 INFO L225 Difference]: With dead ends: 17 [2022-11-16 12:46:55,629 INFO L226 Difference]: Without dead ends: 15 [2022-11-16 12:46:55,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:46:55,631 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:46:55,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2022-11-16 12:46:55,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-16 12:46:55,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-16 12:46:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-16 12:46:55,636 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-16 12:46:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:46:55,636 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-16 12:46:55,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-16 12:46:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 12:46:55,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:46:55,637 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-16 12:46:55,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:46:55,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:55,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:46:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-16 12:46:55,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:46:55,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826278969] [2022-11-16 12:46:55,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:46:55,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:46:55,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:46:55,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:46:55,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:46:56,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 12:46:56,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:46:56,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 106 conjunts are in the unsatisfiable core [2022-11-16 12:46:56,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:47:00,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:47:00,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:47:06,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 12:47:06,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:47:06,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826278969] [2022-11-16 12:47:06,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826278969] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:47:06,920 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:47:06,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-16 12:47:06,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936857936] [2022-11-16 12:47:06,921 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:47:06,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 12:47:06,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:47:06,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 12:47:06,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:47:06,923 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:07,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:47:07,211 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-16 12:47:07,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:47:07,212 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 12:47:07,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:47:07,212 INFO L225 Difference]: With dead ends: 15 [2022-11-16 12:47:07,212 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:47:07,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:47:07,214 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:47:07,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-11-16 12:47:07,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:47:07,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:47:07,215 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) [2022-11-16 12:47:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:47:07,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-16 12:47:07,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:47:07,216 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:47:07,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:47:07,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:47:07,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:47:07,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:47:07,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:47:07,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:47:07,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:47:07,610 INFO L895 garLoopResultBuilder]: At program point L102-2(lines 102 351) the Hoare annotation is: (let ((.cse0 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_16~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_17~0#1| (_ bv0 8))) (.cse3 (= |ULTIMATE.start_main_~var_20~0#1| (_ bv3 8))) (.cse4 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~var_22~0#1| |ULTIMATE.start_main_~state_23~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_45~0#1|) .cse2 .cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|) .cse4) (let ((.cse5 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (and .cse0 .cse1 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) .cse2 (exists ((|ULTIMATE.start_main_~var_130_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_130_arg_2~0#1|))) .cse5)) |ULTIMATE.start_main_~state_49~0#1|)) .cse3 (exists ((|ULTIMATE.start_main_~var_116_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_116_arg_2~0#1|))) .cse5)) |ULTIMATE.start_main_~state_23~0#1|)) (exists ((|ULTIMATE.start_main_~var_107_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_107_arg_2~0#1|))))) |ULTIMATE.start_main_~state_18~0#1|)) .cse4 (or (= ((_ zero_extend 24) |ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~var_22~0#1|)) (not (= ((_ zero_extend 24) |ULTIMATE.start_main_~var_20~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~state_18~0#1|)))))))) [2022-11-16 12:47:07,611 INFO L899 garLoopResultBuilder]: For program point L102-3(lines 102 351) no Hoare annotation was computed. [2022-11-16 12:47:07,611 INFO L895 garLoopResultBuilder]: At program point L352(lines 22 353) the Hoare annotation is: false [2022-11-16 12:47:07,611 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:47:07,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:47:07,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:47:07,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-16 12:47:07,612 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-16 12:47:07,612 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-16 12:47:07,612 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-16 12:47:07,616 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-16 12:47:07,618 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:47:07,627 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,628 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,629 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,635 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,635 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,635 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:47:07 BoogieIcfgContainer [2022-11-16 12:47:07,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:47:07,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:47:07,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:47:07,638 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:47:07,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:49" (3/4) ... [2022-11-16 12:47:07,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:47:07,655 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-16 12:47:07,656 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 12:47:07,656 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:47:07,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_22 == state_23) && 0bv8 == state_45) && var_17 == 0bv8) && var_20 == 3bv8) && 0bv8 == state_18) && 1bv8 == mask_SORT_3) || (((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && !(cond == 0bv32)) && var_17 == 0bv8) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) && (~zero_extendFrom8To32(state_23) == ~zero_extendFrom8To32(var_22) || !(~zero_extendFrom8To32(var_20) == ~zero_extendFrom8To32(state_18)))) [2022-11-16 12:47:07,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:47:07,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:47:07,718 INFO L158 Benchmark]: Toolchain (without parser) took 19264.29ms. Allocated memory was 67.1MB in the beginning and 245.4MB in the end (delta: 178.3MB). Free memory was 47.0MB in the beginning and 130.2MB in the end (delta: -83.2MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,718 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:47:07,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.27ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 44.3MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.31ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 40.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,719 INFO L158 Benchmark]: Boogie Preprocessor took 79.19ms. Allocated memory is still 67.1MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,720 INFO L158 Benchmark]: RCFGBuilder took 829.00ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 38.6MB in the beginning and 50.3MB in the end (delta: -11.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,720 INFO L158 Benchmark]: TraceAbstraction took 17777.55ms. Allocated memory was 90.2MB in the beginning and 245.4MB in the end (delta: 155.2MB). Free memory was 49.4MB in the beginning and 136.5MB in the end (delta: -87.1MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,720 INFO L158 Benchmark]: Witness Printer took 79.20ms. Allocated memory is still 245.4MB. Free memory was 136.5MB in the beginning and 130.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:47:07,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 67.1MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.27ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 44.3MB in the end (delta: 2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.31ms. Allocated memory is still 67.1MB. Free memory was 44.3MB in the beginning and 40.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.19ms. Allocated memory is still 67.1MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 829.00ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 38.6MB in the beginning and 50.3MB in the end (delta: -11.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 17777.55ms. Allocated memory was 90.2MB in the beginning and 245.4MB in the end (delta: 155.2MB). Free memory was 49.4MB in the beginning and 136.5MB in the end (delta: -87.1MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 79.20ms. Allocated memory is still 245.4MB. Free memory was 136.5MB in the beginning and 130.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_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: 17.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 48 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 16 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 92 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 169 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 31 QuantifiedInterpolants, 3637 SizeOfPredicates, 218 NumberOfNonLiveVariables, 1483 ConjunctsInSsa, 204 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/48 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: 102]: Loop Invariant [2022-11-16 12:47:07,731 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,731 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,731 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,732 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,733 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-16 12:47:07,733 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] Derived loop invariant: (((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_22 == state_23) && 0bv8 == state_45) && var_17 == 0bv8) && var_20 == 3bv8) && 0bv8 == state_18) && 1bv8 == mask_SORT_3) || (((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && !(cond == 0bv32)) && var_17 == 0bv8) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) && (~zero_extendFrom8To32(state_23) == ~zero_extendFrom8To32(var_22) || !(~zero_extendFrom8To32(var_20) == ~zero_extendFrom8To32(state_18)))) RESULT: Ultimate proved your program to be correct! [2022-11-16 12:47:07,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ea0b1a4-73f4-4f62-8c65-928d7f239bb5/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE