./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R --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 f935d95150c6192cae235c17f2cdf998848e2616573edb0256a18965b6c2ef33 --- 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-38b53e6 [2022-11-25 18:30:03,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:30:03,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:30:03,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:30:03,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:30:03,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:30:03,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:30:03,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:30:03,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:30:03,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:30:03,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:30:03,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:30:03,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:30:03,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:30:03,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:30:03,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:30:03,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:30:03,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:30:03,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:30:03,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:30:03,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:30:03,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:30:03,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:30:03,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:30:03,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:30:03,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:30:03,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:30:03,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:30:03,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:30:03,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:30:03,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:30:03,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:30:03,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:30:03,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:30:03,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:30:03,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:30:03,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:30:03,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:30:03,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:30:03,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:30:03,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:30:03,457 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 18:30:03,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:30:03,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:30:03,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:30:03,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:30:03,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:30:03,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:30:03,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:30:03,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:30:03,480 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:30:03,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:30:03,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:30:03,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:30:03,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:30:03,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:30:03,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:30:03,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:30:03,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:30:03,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:30:03,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:30:03,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:30:03,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:30:03,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:03,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:30:03,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:30:03,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:30:03,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:30:03,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:30:03,485 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:30:03,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:30:03,486 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:30:03,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:30:03,486 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f935d95150c6192cae235c17f2cdf998848e2616573edb0256a18965b6c2ef33 [2022-11-25 18:30:03,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:30:03,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:30:03,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:30:03,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:30:03,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:30:03,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:06,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:30:07,129 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:30:07,135 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:07,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/b6c8870ff/94fdcf7f991b49608a93870ac6eb5239/FLAGe7000dec7 [2022-11-25 18:30:07,217 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/b6c8870ff/94fdcf7f991b49608a93870ac6eb5239 [2022-11-25 18:30:07,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:30:07,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:30:07,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:07,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:30:07,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:30:07,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3919df5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07, skipping insertion in model container [2022-11-25 18:30:07,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:30:07,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:30:07,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1107,1120] [2022-11-25 18:30:07,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:07,630 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:30:07,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1107,1120] [2022-11-25 18:30:07,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:07,801 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:30:07,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07 WrapperNode [2022-11-25 18:30:07,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:07,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:07,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:30:07,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:30:07,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,909 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 435 [2022-11-25 18:30:07,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:07,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:30:07,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:30:07,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:30:07,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:07,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:30:08,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:30:08,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:30:08,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:30:08,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (1/1) ... [2022-11-25 18:30:08,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:08,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:30:08,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:30:08,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:30:08,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:30:08,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:30:08,349 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:30:08,351 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:30:09,223 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:30:09,230 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:30:09,231 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:30:09,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:09 BoogieIcfgContainer [2022-11-25 18:30:09,233 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:30:09,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:30:09,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:30:09,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:30:09,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:07" (1/3) ... [2022-11-25 18:30:09,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402c7a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:09, skipping insertion in model container [2022-11-25 18:30:09,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:07" (2/3) ... [2022-11-25 18:30:09,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402c7a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:09, skipping insertion in model container [2022-11-25 18:30:09,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:09" (3/3) ... [2022-11-25 18:30:09,241 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:09,260 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:30:09,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:30:09,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:30:09,316 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;@2df781ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:30:09,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:30:09,321 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) [2022-11-25 18:30:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:30:09,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:09,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:30:09,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:30:09,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:30:09,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:30:09,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904105743] [2022-11-25 18:30:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:09,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:30:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:30:09,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:30:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:30:09,765 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:30:09,767 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:30:09,768 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:30:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:30:09,776 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 18:30:09,781 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:30:09,821 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 18:30:09,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:09 BoogieIcfgContainer [2022-11-25 18:30:09,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:30:09,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:30:09,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:30:09,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:30:09,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:09" (3/4) ... [2022-11-25 18:30:09,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:30:09,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:30:09,852 INFO L158 Benchmark]: Toolchain (without parser) took 2630.35ms. Allocated memory is still 195.0MB. Free memory was 167.4MB in the beginning and 74.4MB in the end (delta: 93.0MB). Peak memory consumption was 92.9MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,853 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:30:09,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.33ms. Allocated memory is still 195.0MB. Free memory was 166.6MB in the beginning and 147.7MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.27ms. Allocated memory is still 195.0MB. Free memory was 147.7MB in the beginning and 143.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,856 INFO L158 Benchmark]: Boogie Preprocessor took 92.83ms. Allocated memory is still 195.0MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,861 INFO L158 Benchmark]: RCFGBuilder took 1229.40ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 102.7MB in the end (delta: 38.4MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,862 INFO L158 Benchmark]: TraceAbstraction took 604.94ms. Allocated memory is still 195.0MB. Free memory was 101.6MB in the beginning and 74.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 18:30:09,864 INFO L158 Benchmark]: Witness Printer took 9.53ms. Allocated memory is still 195.0MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:30:09,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 580.33ms. Allocated memory is still 195.0MB. Free memory was 166.6MB in the beginning and 147.7MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.27ms. Allocated memory is still 195.0MB. Free memory was 147.7MB in the beginning and 143.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.83ms. Allocated memory is still 195.0MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1229.40ms. Allocated memory is still 195.0MB. Free memory was 141.0MB in the beginning and 102.7MB in the end (delta: 38.4MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. * TraceAbstraction took 604.94ms. Allocated memory is still 195.0MB. Free memory was 101.6MB in the beginning and 74.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 9.53ms. Allocated memory is still 195.0MB. Free memory is still 74.4MB. 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 166, overapproximation of bitwiseOr at line 164, overapproximation of bitwiseAnd at line 151. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_69 mask_SORT_69 = (SORT_69)-1 >> (sizeof(SORT_69) * 8 - 10); [L38] const SORT_69 msb_SORT_69 = (SORT_69)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L43] const SORT_69 var_70 = 0; [L44] const SORT_10 var_97 = 104; [L45] const SORT_10 var_151 = 1; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_1 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_29; [L52] SORT_31 input_32; [L53] SORT_1 input_34; [L54] SORT_31 input_36; [L55] SORT_1 input_38; [L56] SORT_1 input_44; [L57] SORT_1 input_46; [L58] SORT_1 input_48; [L59] SORT_3 input_52; [L60] SORT_1 input_55; [L61] SORT_1 input_65; [L62] SORT_1 input_73; [L63] SORT_1 input_79; [L64] SORT_1 input_80; [L65] SORT_1 input_91; [L66] SORT_1 input_92; [L67] SORT_1 input_93; [L68] SORT_1 input_107; [L69] SORT_1 input_113; [L70] SORT_1 input_119; [L71] SORT_1 input_125; [L72] SORT_1 input_126; [L73] SORT_1 input_127; [L74] SORT_1 input_141; [L75] SORT_69 input_149; [L77] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] SORT_69 state_71 = __VERIFIER_nondet_ushort() & mask_SORT_69; [L91] SORT_1 init_9_arg_1 = var_7; [L92] state_8 = init_9_arg_1 [L93] SORT_1 init_15_arg_1 = var_7; [L94] state_14 = init_15_arg_1 [L95] SORT_1 init_26_arg_1 = var_7; [L96] state_25 = init_26_arg_1 [L97] SORT_1 init_28_arg_1 = var_7; [L98] state_27 = init_28_arg_1 [L99] SORT_1 init_41_arg_1 = var_7; [L100] state_40 = init_41_arg_1 [L101] SORT_1 init_43_arg_1 = var_7; [L102] state_42 = init_43_arg_1 [L103] SORT_1 init_51_arg_1 = var_21; [L104] state_50 = init_51_arg_1 [L105] SORT_1 init_58_arg_1 = var_7; [L106] state_57 = init_58_arg_1 [L107] SORT_1 init_60_arg_1 = var_7; [L108] state_59 = init_60_arg_1 [L109] SORT_1 init_62_arg_1 = var_7; [L110] state_61 = init_62_arg_1 [L111] SORT_1 init_64_arg_1 = var_7; [L112] state_63 = init_64_arg_1 [L113] SORT_1 init_68_arg_1 = var_7; [L114] state_67 = init_68_arg_1 [L115] SORT_69 init_72_arg_1 = var_70; [L116] state_71 = init_72_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_51_arg_1=1, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_68_arg_1=0, init_72_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_69=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_69=512, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_63=0, state_67=0, state_71=0, state_8=0, var_12=0, var_151=1, var_21=1, var_7=0, var_70=0, var_97=104] [L119] input_2 = __VERIFIER_nondet_uchar() [L120] input_4 = __VERIFIER_nondet_uchar() [L121] input_5 = __VERIFIER_nondet_uchar() [L122] input_6 = __VERIFIER_nondet_uchar() [L123] input_29 = __VERIFIER_nondet_uchar() [L124] input_32 = __VERIFIER_nondet_uchar() [L125] input_34 = __VERIFIER_nondet_uchar() [L126] input_36 = __VERIFIER_nondet_uchar() [L127] input_38 = __VERIFIER_nondet_uchar() [L128] input_44 = __VERIFIER_nondet_uchar() [L129] input_46 = __VERIFIER_nondet_uchar() [L130] input_48 = __VERIFIER_nondet_uchar() [L131] input_52 = __VERIFIER_nondet_uchar() [L132] input_55 = __VERIFIER_nondet_uchar() [L133] input_65 = __VERIFIER_nondet_uchar() [L134] input_73 = __VERIFIER_nondet_uchar() [L135] input_79 = __VERIFIER_nondet_uchar() [L136] input_80 = __VERIFIER_nondet_uchar() [L137] input_91 = __VERIFIER_nondet_uchar() [L138] input_92 = __VERIFIER_nondet_uchar() [L139] input_93 = __VERIFIER_nondet_uchar() [L140] input_107 = __VERIFIER_nondet_uchar() [L141] input_113 = __VERIFIER_nondet_uchar() [L142] input_119 = __VERIFIER_nondet_uchar() [L143] input_125 = __VERIFIER_nondet_uchar() [L144] input_126 = __VERIFIER_nondet_uchar() [L145] input_127 = __VERIFIER_nondet_uchar() [L146] input_141 = __VERIFIER_nondet_uchar() [L147] input_149 = __VERIFIER_nondet_ushort() [L150] SORT_1 var_11_arg_0 = state_8; [L151] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L152] SORT_10 var_11 = var_11_arg_0; [L153] SORT_10 var_13_arg_0 = var_11; [L154] SORT_10 var_13_arg_1 = var_12; [L155] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L156] SORT_1 var_16_arg_0 = state_14; [L157] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L158] SORT_10 var_16 = var_16_arg_0; [L159] SORT_10 var_17_arg_0 = var_16; [L160] SORT_10 var_17_arg_1 = var_12; [L161] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L162] SORT_1 var_18_arg_0 = var_13; [L163] SORT_1 var_18_arg_1 = var_17; [L164] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L165] SORT_1 var_22_arg_0 = var_18; [L166] SORT_1 var_22 = ~var_22_arg_0; [L167] SORT_1 var_23_arg_0 = var_21; [L168] SORT_1 var_23_arg_1 = var_22; [L169] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L170] var_23 = var_23 & mask_SORT_1 [L171] SORT_1 bad_24_arg_0 = var_23; [L172] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 18:30:09,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R --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 f935d95150c6192cae235c17f2cdf998848e2616573edb0256a18965b6c2ef33 --- 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-38b53e6 [2022-11-25 18:30:12,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:30:12,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:30:12,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:30:12,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:30:12,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:30:12,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:30:12,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:30:12,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:30:12,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:30:12,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:30:12,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:30:12,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:30:12,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:30:12,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:30:12,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:30:12,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:30:12,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:30:12,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:30:12,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:30:12,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:30:12,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:30:12,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:30:12,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:30:12,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:30:12,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:30:12,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:30:12,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:30:12,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:30:12,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:30:12,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:30:12,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:30:12,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:30:12,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:30:12,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:30:12,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:30:12,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:30:12,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:30:12,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:30:12,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:30:12,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:30:12,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 18:30:12,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:30:12,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:30:12,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:30:12,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:30:12,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:30:12,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:30:12,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:30:12,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:30:12,593 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:30:12,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:30:12,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:30:12,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:30:12,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:30:12,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:30:12,595 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:30:12,595 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:30:12,595 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:30:12,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:30:12,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:30:12,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:30:12,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:30:12,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:30:12,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:30:12,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:12,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:30:12,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:30:12,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:30:12,598 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:30:12,598 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:30:12,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:30:12,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:30:12,599 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:30:12,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:30:12,599 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:30:12,600 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f935d95150c6192cae235c17f2cdf998848e2616573edb0256a18965b6c2ef33 [2022-11-25 18:30:12,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:30:13,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:30:13,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:30:13,017 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:30:13,018 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:30:13,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:16,191 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:30:16,454 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:30:16,454 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:16,463 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/75991118a/a85f1f6e90b8460aa064ed5d7010ca84/FLAG5360d4c83 [2022-11-25 18:30:16,480 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/data/75991118a/a85f1f6e90b8460aa064ed5d7010ca84 [2022-11-25 18:30:16,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:30:16,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:30:16,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:16,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:30:16,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:30:16,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:16" (1/1) ... [2022-11-25 18:30:16,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691b4327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:16, skipping insertion in model container [2022-11-25 18:30:16,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:16" (1/1) ... [2022-11-25 18:30:16,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:30:16,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:30:16,711 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1107,1120] [2022-11-25 18:30:16,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:16,865 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:30:16,878 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1107,1120] [2022-11-25 18:30:17,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:30:17,019 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:30:17,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17 WrapperNode [2022-11-25 18:30:17,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:30:17,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:17,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:30:17,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:30:17,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,120 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 435 [2022-11-25 18:30:17,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:30:17,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:30:17,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:30:17,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:30:17,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,191 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:30:17,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:30:17,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:30:17,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:30:17,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (1/1) ... [2022-11-25 18:30:17,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:30:17,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:30:17,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:30:17,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:30:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:30:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:30:17,520 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:30:17,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:30:18,058 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:30:18,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:30:18,065 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:30:18,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:18 BoogieIcfgContainer [2022-11-25 18:30:18,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:30:18,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:30:18,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:30:18,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:30:18,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:16" (1/3) ... [2022-11-25 18:30:18,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3e4a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:18, skipping insertion in model container [2022-11-25 18:30:18,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:17" (2/3) ... [2022-11-25 18:30:18,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3e4a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:18, skipping insertion in model container [2022-11-25 18:30:18,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:18" (3/3) ... [2022-11-25 18:30:18,078 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2022-11-25 18:30:18,108 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:30:18,108 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:30:18,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:30:18,202 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;@57a1647a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:30:18,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:30:18,207 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) [2022-11-25 18:30:18,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 18:30:18,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:18,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:30:18,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:30:18,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:18,230 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 18:30:18,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:30:18,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216424565] [2022-11-25 18:30:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:18,249 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 [2022-11-25 18:30:18,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:30:18,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:30:18,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:18,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-25 18:30:18,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:30:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:18,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:30:18,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:30:18,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216424565] [2022-11-25 18:30:18,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216424565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:30:18,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:30:18,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:30:18,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504884613] [2022-11-25 18:30:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:30:18,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:30:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:30:18,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:30:18,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:30:18,863 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) [2022-11-25 18:30:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:18,963 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 18:30:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 18:30:18,970 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 [2022-11-25 18:30:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:18,982 INFO L225 Difference]: With dead ends: 20 [2022-11-25 18:30:18,983 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 18:30:18,986 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 [2022-11-25 18:30:18,992 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-25 18:30:18,994 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] [2022-11-25 18:30:19,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 18:30:19,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 18:30:19,029 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) [2022-11-25 18:30:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 18:30:19,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 18:30:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:19,033 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 18:30:19,034 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) [2022-11-25 18:30:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 18:30:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 18:30:19,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:19,035 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:30:19,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:19,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:19,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:30:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:19,261 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 18:30:19,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:30:19,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136076954] [2022-11-25 18:30:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:30:19,265 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 [2022-11-25 18:30:19,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:30:19,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:30:19,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:30:19,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 18:30:19,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:30:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:19,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:30:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:20,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:30:20,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136076954] [2022-11-25 18:30:20,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136076954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:30:20,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:30:20,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 18:30:20,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912269432] [2022-11-25 18:30:20,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:30:20,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:30:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:30:20,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:30:20,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:30:20,413 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) [2022-11-25 18:30:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:20,584 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 18:30:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:30:20,585 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 [2022-11-25 18:30:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:20,585 INFO L225 Difference]: With dead ends: 16 [2022-11-25 18:30:20,586 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 18:30:20,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:30:20,587 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:20,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 18:30:20,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 18:30:20,592 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) [2022-11-25 18:30:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 18:30:20,592 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 18:30:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:20,593 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 18:30:20,593 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) [2022-11-25 18:30:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 18:30:20,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:30:20,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:20,594 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 18:30:20,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:20,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:20,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:30:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 18:30:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:30:20,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046054778] [2022-11-25 18:30:20,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 18:30:20,812 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 [2022-11-25 18:30:20,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:30:20,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:30:20,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:21,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 18:30:21,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:30:21,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-25 18:30:21,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:30:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:21,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:30:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:30:22,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:30:22,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046054778] [2022-11-25 18:30:22,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046054778] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:30:22,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:30:22,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 18:30:22,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768795675] [2022-11-25 18:30:22,752 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:30:22,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 18:30:22,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:30:22,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 18:30:22,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:30:22,754 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:22,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:22,952 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 18:30:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 18:30:22,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 18:30:22,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:22,953 INFO L225 Difference]: With dead ends: 19 [2022-11-25 18:30:22,953 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 18:30:22,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-25 18:30:22,955 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:22,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 18:30:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 18:30:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 18:30:22,960 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) [2022-11-25 18:30:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 18:30:22,961 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 18:30:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:22,961 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 18:30:22,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 18:30:22,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 18:30:22,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:30:22,963 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 18:30:22,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-25 18:30:23,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:23,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:30:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:30:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 18:30:23,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:30:23,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174556116] [2022-11-25 18:30:23,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 18:30:23,180 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 [2022-11-25 18:30:23,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:30:23,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 18:30:23,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:23,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-25 18:30:23,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 18:30:23,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-25 18:30:23,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:30:23,984 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 18:30:23,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 18:30:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 18:30:24,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:30:24,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174556116] [2022-11-25 18:30:24,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174556116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 18:30:24,648 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 18:30:24,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 18:30:24,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313626656] [2022-11-25 18:30:24,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 18:30:24,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 18:30:24,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:30:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 18:30:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:30:24,650 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:30:24,734 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-25 18:30:24,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:30:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-25 18:30:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:30:24,736 INFO L225 Difference]: With dead ends: 15 [2022-11-25 18:30:24,736 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 18:30:24,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 18:30:24,737 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:30:24,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:30:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 18:30:24,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 18:30:24,739 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) [2022-11-25 18:30:24,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 18:30:24,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-25 18:30:24,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:30:24,740 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 18:30:24,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:30:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 18:30:24,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 18:30:24,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 18:30:24,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:24,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 18:30:24,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 18:30:25,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 18:30:25,085 INFO L895 garLoopResultBuilder]: At program point L420(lines 22 421) the Hoare annotation is: false [2022-11-25 18:30:25,085 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 18:30:25,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 18:30:25,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 18:30:25,085 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-25 18:30:25,086 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-25 18:30:25,086 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-25 18:30:25,086 INFO L895 garLoopResultBuilder]: At program point L117-2(lines 117 419) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32))) (.cse3 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|))) (or (and (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_61~0#1|) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 .cse2 .cse3))) [2022-11-25 18:30:25,086 INFO L899 garLoopResultBuilder]: For program point L117-3(lines 117 419) no Hoare annotation was computed. [2022-11-25 18:30:25,086 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-25 18:30:25,090 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-25 18:30:25,092 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:30:25,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:30:25 BoogieIcfgContainer [2022-11-25 18:30:25,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:30:25,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:30:25,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:30:25,136 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:30:25,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:18" (3/4) ... [2022-11-25 18:30:25,140 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:30:25,172 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 18:30:25,173 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 18:30:25,174 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:30:25,350 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:30:25,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:30:25,351 INFO L158 Benchmark]: Toolchain (without parser) took 8862.75ms. Allocated memory was 62.9MB in the beginning and 138.4MB in the end (delta: 75.5MB). Free memory was 33.5MB in the beginning and 105.3MB in the end (delta: -71.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,351 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:30:25,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.95ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 33.4MB in the beginning and 61.2MB in the end (delta: -27.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.74ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 57.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,353 INFO L158 Benchmark]: Boogie Preprocessor took 76.44ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 55.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,353 INFO L158 Benchmark]: RCFGBuilder took 854.43ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 68.2MB in the end (delta: -13.2MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,354 INFO L158 Benchmark]: TraceAbstraction took 7065.15ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 67.2MB in the beginning and 112.7MB in the end (delta: -45.4MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,354 INFO L158 Benchmark]: Witness Printer took 215.26ms. Allocated memory is still 138.4MB. Free memory was 112.7MB in the beginning and 105.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 18:30:25,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.95ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 33.4MB in the beginning and 61.2MB in the end (delta: -27.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.74ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 57.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.44ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 55.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 854.43ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 68.2MB in the end (delta: -13.2MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7065.15ms. Allocated memory was 92.3MB in the beginning and 138.4MB in the end (delta: 46.1MB). Free memory was 67.2MB in the beginning and 112.7MB in the end (delta: -45.4MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Witness Printer took 215.26ms. Allocated memory is still 138.4MB. Free memory was 112.7MB in the beginning and 105.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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 - 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: 6.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 37 HoareAnnotationTreeSize, 2 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 38 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 21 QuantifiedInterpolants, 1941 SizeOfPredicates, 127 NumberOfNonLiveVariables, 1512 ConjunctsInSsa, 122 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/48 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: 117]: Loop Invariant Derived loop invariant: (((((var_7 == state_57 && 1bv8 == mask_SORT_1) && var_7 == 0bv8) && var_7 == state_61) && var_12 == 0bv32) && 0bv8 == state_14) || ((((1bv8 == mask_SORT_1 && cond == 1bv32) && var_7 == 0bv8) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-11-25 18:30:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0efbe6f1-74b0-4b81-b323-1fc500748e86/bin/uautomizer-ZsLfNo2U6R/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