./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c28d0290ce8ece097f92762e630373f1e6a86a30ad86849326ba497513d1894 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:50:06,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:50:06,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:50:06,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:50:06,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:50:06,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:50:06,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:50:06,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:50:06,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:50:06,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:50:06,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:50:06,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:50:06,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:50:06,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:50:06,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:50:06,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:50:06,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:50:06,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:50:06,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:50:06,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:50:06,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:50:06,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:50:06,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:50:06,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:50:06,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:50:06,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:50:06,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:50:06,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:50:06,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:50:06,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:50:06,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:50:06,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:50:06,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:50:06,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:50:06,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:50:06,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:50:06,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:50:06,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:50:06,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:50:06,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:50:06,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:50:06,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:50:06,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:50:06,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:50:06,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:50:06,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:50:06,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:50:06,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:50:06,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:50:06,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:50:06,498 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:50:06,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:50:06,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:50:06,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:50:06,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:50:06,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:50:06,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:50:06,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:50:06,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:50:06,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:50:06,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:50:06,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:50:06,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:50:06,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:06,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:50:06,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:50:06,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:50:06,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:50:06,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:50:06,502 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:50:06,503 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:50:06,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:50:06,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c28d0290ce8ece097f92762e630373f1e6a86a30ad86849326ba497513d1894 [2022-11-18 20:50:06,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:50:06,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:50:06,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:50:06,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:50:06,925 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:50:06,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c [2022-11-18 20:50:07,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/860ca2d55/85e1725f34f344f3aebef9894ea3de6b/FLAGcf1dfe5a1 [2022-11-18 20:50:07,646 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:50:07,646 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c [2022-11-18 20:50:07,656 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/860ca2d55/85e1725f34f344f3aebef9894ea3de6b/FLAGcf1dfe5a1 [2022-11-18 20:50:08,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/860ca2d55/85e1725f34f344f3aebef9894ea3de6b [2022-11-18 20:50:08,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:50:08,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:50:08,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:08,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:50:08,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:50:08,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fe3a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08, skipping insertion in model container [2022-11-18 20:50:08,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:50:08,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:08,252 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c[1117,1130] [2022-11-18 20:50:08,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:08,294 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:50:08,307 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c[1117,1130] [2022-11-18 20:50:08,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:08,333 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:50:08,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08 WrapperNode [2022-11-18 20:50:08,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:08,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:08,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:50:08,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:50:08,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,377 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-11-18 20:50:08,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:08,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:50:08,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:50:08,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:50:08,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:50:08,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:50:08,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:50:08,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:50:08,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (1/1) ... [2022-11-18 20:50:08,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:08,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:08,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:50:08,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:50:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:50:08,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:50:08,598 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:50:08,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:50:08,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:50:08,761 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:50:08,762 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:50:08,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:08 BoogieIcfgContainer [2022-11-18 20:50:08,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:50:08,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:50:08,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:50:08,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:50:08,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:50:08" (1/3) ... [2022-11-18 20:50:08,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7a2f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:08, skipping insertion in model container [2022-11-18 20:50:08,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:08" (2/3) ... [2022-11-18 20:50:08,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7a2f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:08, skipping insertion in model container [2022-11-18 20:50:08,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:08" (3/3) ... [2022-11-18 20:50:08,775 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.count4.c [2022-11-18 20:50:08,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:50:08,800 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:50:08,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:50:08,870 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;@2ab53993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:50:08,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:50:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:50:08,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:08,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:50:08,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:08,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:08,892 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 20:50:08,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:08,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801568113] [2022-11-18 20:50:08,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:08,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:09,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:09,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801568113] [2022-11-18 20:50:09,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801568113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:09,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:09,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:50:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502630601] [2022-11-18 20:50:09,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:09,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:09,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:09,615 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:09,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:09,716 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2022-11-18 20:50:09,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:50:09,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:50:09,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:09,730 INFO L225 Difference]: With dead ends: 28 [2022-11-18 20:50:09,730 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:50:09,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:09,738 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:09,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 21 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:50:09,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:50:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2022-11-18 20:50:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-18 20:50:09,807 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2022-11-18 20:50:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:09,807 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-18 20:50:09,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-18 20:50:09,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:50:09,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:09,809 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:09,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:50:09,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:09,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:09,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1478674406, now seen corresponding path program 1 times [2022-11-18 20:50:09,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:09,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932170106] [2022-11-18 20:50:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:09,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:10,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:10,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932170106] [2022-11-18 20:50:10,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932170106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:10,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:10,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:50:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564075157] [2022-11-18 20:50:10,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:10,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:10,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:10,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:10,195 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:10,297 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2022-11-18 20:50:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:50:10,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-18 20:50:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:10,301 INFO L225 Difference]: With dead ends: 30 [2022-11-18 20:50:10,301 INFO L226 Difference]: Without dead ends: 22 [2022-11-18 20:50:10,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:10,305 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:10,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 17 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:50:10,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-18 20:50:10,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 14. [2022-11-18 20:50:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-18 20:50:10,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2022-11-18 20:50:10,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:10,323 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-18 20:50:10,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-18 20:50:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:50:10,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:10,326 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:10,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:50:10,327 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1459950360, now seen corresponding path program 1 times [2022-11-18 20:50:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:10,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243239425] [2022-11-18 20:50:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:10,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:10,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:50:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243239425] [2022-11-18 20:50:10,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243239425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:10,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:10,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:50:10,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290595704] [2022-11-18 20:50:10,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:10,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:10,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:50:10,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:10,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:10,617 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:10,700 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-18 20:50:10,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:50:10,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 20:50:10,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:10,702 INFO L225 Difference]: With dead ends: 24 [2022-11-18 20:50:10,702 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 20:50:10,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:10,704 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:10,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:50:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 20:50:10,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-11-18 20:50:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-18 20:50:10,710 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2022-11-18 20:50:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:10,710 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-18 20:50:10,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-18 20:50:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:50:10,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:10,711 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:10,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:50:10,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:10,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:10,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1461797402, now seen corresponding path program 1 times [2022-11-18 20:50:10,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:50:10,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770456296] [2022-11-18 20:50:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:10,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:50:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:50:10,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:50:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:50:10,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:50:10,824 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:50:10,826 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:50:10,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:50:10,832 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-18 20:50:10,837 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:50:10,874 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:10,874 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:10,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:50:10 BoogieIcfgContainer [2022-11-18 20:50:10,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:50:10,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:50:10,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:50:10,899 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:50:10,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:08" (3/4) ... [2022-11-18 20:50:10,903 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:50:10,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:50:10,905 INFO L158 Benchmark]: Toolchain (without parser) took 2898.13ms. Allocated memory is still 125.8MB. Free memory was 86.5MB in the beginning and 62.9MB in the end (delta: 23.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,905 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:50:10,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.41ms. Allocated memory is still 125.8MB. Free memory was 86.4MB in the beginning and 100.9MB in the end (delta: -14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.01ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,912 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 98.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,916 INFO L158 Benchmark]: RCFGBuilder took 360.16ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 88.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,916 INFO L158 Benchmark]: TraceAbstraction took 2129.51ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 63.7MB in the end (delta: 24.2MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-11-18 20:50:10,917 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 62.9MB in the end (delta: 799.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:50:10,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 102.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.41ms. Allocated memory is still 125.8MB. Free memory was 86.4MB in the beginning and 100.9MB in the end (delta: -14.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.01ms. Allocated memory is still 125.8MB. Free memory was 100.9MB in the beginning and 99.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 125.8MB. Free memory was 99.5MB in the beginning and 98.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 360.16ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 88.4MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2129.51ms. Allocated memory is still 125.8MB. Free memory was 87.9MB in the beginning and 63.7MB in the end (delta: 24.2MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 62.9MB in the end (delta: 799.3kB). 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: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 54. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L29] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 1); [L30] const SORT_9 msb_SORT_9 = (SORT_9)1 << (1 - 1); [L32] const SORT_1 var_2 = 0; [L33] const SORT_1 var_5 = 1; [L34] const SORT_1 var_8 = mask_SORT_1; [L37] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_4_arg_1 = var_2; [L40] state_3 = init_4_arg_1 VAL [init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, state_3=0, var_2=0, var_5=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, state_3=0, var_10=0, var_10_arg_0=0, var_10_arg_1=15, var_2=0, var_5=1, var_6=1, var_6_arg_0=0, var_6_arg_1=1, var_8=15] [L54] var_6 = var_6 & mask_SORT_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, state_3=0, var_10=0, var_10_arg_0=0, var_10_arg_1=15, var_2=0, var_5=1, var_6=15, var_6_arg_0=0, var_6_arg_1=1, var_8=15] [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=15, state_3=15, var_10=0, var_10_arg_0=0, var_10_arg_1=15, var_2=0, var_5=1, var_6=15, var_6_arg_0=0, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 27 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 20:50:10,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c28d0290ce8ece097f92762e630373f1e6a86a30ad86849326ba497513d1894 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:50:13,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:50:13,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:50:13,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:50:13,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:50:13,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:50:13,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:50:13,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:50:13,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:50:13,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:50:13,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:50:13,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:50:13,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:50:13,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:50:13,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:50:13,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:50:13,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:50:13,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:50:13,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:50:13,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:50:13,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:50:13,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:50:13,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:50:13,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:50:13,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:50:13,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:50:13,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:50:13,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:50:13,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:50:13,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:50:13,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:50:13,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:50:13,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:50:13,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:50:13,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:50:13,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:50:13,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:50:13,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:50:13,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:50:13,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:50:13,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:50:13,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 20:50:13,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:50:13,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:50:13,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:50:13,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:50:13,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:50:13,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:50:13,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:50:13,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:50:13,896 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:50:13,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:50:13,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:50:13,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:50:13,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:50:13,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:50:13,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:50:13,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:50:13,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:50:13,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:50:13,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:50:13,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:50:13,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:50:13,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:50:13,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:50:13,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:13,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:50:13,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:50:13,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:50:13,901 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:50:13,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:50:13,901 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:50:13,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:50:13,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:50:13,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:50:13,902 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c28d0290ce8ece097f92762e630373f1e6a86a30ad86849326ba497513d1894 [2022-11-18 20:50:14,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:50:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:50:14,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:50:14,415 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:50:14,419 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:50:14,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c [2022-11-18 20:50:14,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/14b23088e/1d5ffd791e184839ac6672f84cf3b653/FLAGe209f8c1e [2022-11-18 20:50:15,219 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:50:15,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c [2022-11-18 20:50:15,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/14b23088e/1d5ffd791e184839ac6672f84cf3b653/FLAGe209f8c1e [2022-11-18 20:50:15,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/data/14b23088e/1d5ffd791e184839ac6672f84cf3b653 [2022-11-18 20:50:15,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:50:15,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:50:15,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:15,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:50:15,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:50:15,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564e87c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15, skipping insertion in model container [2022-11-18 20:50:15,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:50:15,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:50:15,752 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c[1117,1130] [2022-11-18 20:50:15,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:15,793 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:50:15,807 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count4.c[1117,1130] [2022-11-18 20:50:15,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:50:15,852 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:50:15,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15 WrapperNode [2022-11-18 20:50:15,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:50:15,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:15,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:50:15,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:50:15,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,909 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-18 20:50:15,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:50:15,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:50:15,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:50:15,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:50:15,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:50:15,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:50:15,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:50:15,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:50:15,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (1/1) ... [2022-11-18 20:50:15,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:50:15,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:50:16,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:50:16,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:50:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:50:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:50:16,173 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:50:16,177 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:50:16,387 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:50:16,395 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:50:16,396 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:50:16,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:16 BoogieIcfgContainer [2022-11-18 20:50:16,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:50:16,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:50:16,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:50:16,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:50:16,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:50:15" (1/3) ... [2022-11-18 20:50:16,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d280b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:16, skipping insertion in model container [2022-11-18 20:50:16,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:50:15" (2/3) ... [2022-11-18 20:50:16,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d280b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:50:16, skipping insertion in model container [2022-11-18 20:50:16,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:16" (3/3) ... [2022-11-18 20:50:16,409 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.count4.c [2022-11-18 20:50:16,461 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:50:16,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:50:16,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:50:16,606 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;@459a7ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:50:16,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:50:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:16,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:50:16,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:16,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:50:16,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:16,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:16,653 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 20:50:16,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:16,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276303267] [2022-11-18 20:50:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:16,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:16,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:16,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:50:16,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:50:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:16,782 WARN L261 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:50:16,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:17,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:50:17,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:17,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276303267] [2022-11-18 20:50:17,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276303267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:50:17,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:50:17,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:50:17,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559244563] [2022-11-18 20:50:17,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:50:17,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:50:17,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:17,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:50:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:50:17,099 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:17,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:17,186 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 20:50:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:50:17,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:50:17,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:17,207 INFO L225 Difference]: With dead ends: 20 [2022-11-18 20:50:17,208 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 20:50:17,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:50:17,224 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:17,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:50:17,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 20:50:17,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 20:50:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 20:50:17,273 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 20:50:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:17,274 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 20:50:17,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 20:50:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:50:17,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:17,275 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 20:50:17,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:17,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:17,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 20:50:17,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:17,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939086779] [2022-11-18 20:50:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:50:17,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:17,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:17,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:50:17,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:50:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:50:17,559 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:50:17,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:17,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:17,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:17,909 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:17,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939086779] [2022-11-18 20:50:17,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939086779] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:17,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 20:50:17,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208183053] [2022-11-18 20:50:17,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:17,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:50:17,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:50:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:50:17,914 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:18,074 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-18 20:50:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:50:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:50:18,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:18,076 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:50:18,076 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 20:50:18,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:50:18,079 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:18,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:50:18,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 20:50:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 20:50:18,086 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) [2022-11-18 20:50:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 20:50:18,087 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-18 20:50:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:18,088 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 20:50:18,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:18,088 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 20:50:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 20:50:18,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:18,089 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 20:50:18,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:18,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:18,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:18,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-18 20:50:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:18,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976167476] [2022-11-18 20:50:18,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:50:18,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:18,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:18,308 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:50:18,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:50:18,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:50:18,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:50:18,375 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 20:50:18,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:18,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:18,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:18,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976167476] [2022-11-18 20:50:18,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976167476] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:18,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:18,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 20:50:18,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75614354] [2022-11-18 20:50:18,889 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:18,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:50:18,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:18,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:50:18,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:50:18,891 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:19,315 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-18 20:50:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:50:19,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-18 20:50:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:19,318 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:50:19,318 INFO L226 Difference]: Without dead ends: 29 [2022-11-18 20:50:19,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:50:19,320 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:19,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 24 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:50:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-18 20:50:19,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-18 20:50:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-18 20:50:19,334 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-18 20:50:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:19,335 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-18 20:50:19,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-18 20:50:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:50:19,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:19,337 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-18 20:50:19,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:19,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:19,551 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:19,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:19,552 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2022-11-18 20:50:19,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:19,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035985556] [2022-11-18 20:50:19,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:50:19,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:19,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:19,556 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:50:19,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:50:19,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-18 20:50:19,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:50:19,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-18 20:50:19,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:50:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:20,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:50:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:50:21,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:50:21,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035985556] [2022-11-18 20:50:21,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035985556] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:50:21,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:50:21,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2022-11-18 20:50:21,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862163983] [2022-11-18 20:50:21,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:50:21,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:50:21,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:50:21,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:50:21,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:50:21,198 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:22,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:50:22,697 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2022-11-18 20:50:22,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:50:22,698 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 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 26 [2022-11-18 20:50:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:50:22,699 INFO L225 Difference]: With dead ends: 55 [2022-11-18 20:50:22,699 INFO L226 Difference]: Without dead ends: 53 [2022-11-18 20:50:22,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=332, Invalid=858, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:50:22,701 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 61 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:50:22,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 39 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:50:22,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-18 20:50:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-11-18 20:50:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:22,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2022-11-18 20:50:22,750 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2022-11-18 20:50:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:50:22,751 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2022-11-18 20:50:22,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:50:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2022-11-18 20:50:22,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-18 20:50:22,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:50:22,754 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 1, 1, 1, 1] [2022-11-18 20:50:22,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:22,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:22,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:50:22,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:50:22,968 INFO L85 PathProgramCache]: Analyzing trace with hash -779438813, now seen corresponding path program 4 times [2022-11-18 20:50:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:50:22,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575610903] [2022-11-18 20:50:22,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:50:22,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:22,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:50:22,972 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:50:22,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:50:23,110 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:50:23,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-18 20:50:23,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:50:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:50:23,267 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:50:23,267 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:50:23,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:50:23,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:50:23,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:50:23,495 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-18 20:50:23,508 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:50:23,577 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,577 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,578 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,578 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,578 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,578 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,578 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,584 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,584 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,584 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,585 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,585 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,585 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,585 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,587 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,587 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:50:23 BoogieIcfgContainer [2022-11-18 20:50:23,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:50:23,620 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:50:23,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:50:23,622 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:50:23,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:50:16" (3/4) ... [2022-11-18 20:50:23,625 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:50:23,661 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,661 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,665 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,665 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,666 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,667 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,667 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,667 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,667 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,667 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,668 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 20:50:23,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:50:23,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:50:23,769 INFO L158 Benchmark]: Toolchain (without parser) took 8206.41ms. Allocated memory was 58.7MB in the beginning and 113.2MB in the end (delta: 54.5MB). Free memory was 37.8MB in the beginning and 86.0MB in the end (delta: -48.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,770 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:50:23,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.47ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 43.3MB in the end (delta: -5.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.01ms. Allocated memory is still 58.7MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,771 INFO L158 Benchmark]: Boogie Preprocessor took 55.56ms. Allocated memory is still 58.7MB. Free memory was 41.8MB in the beginning and 40.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:50:23,772 INFO L158 Benchmark]: RCFGBuilder took 431.26ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 31.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,772 INFO L158 Benchmark]: TraceAbstraction took 7218.76ms. Allocated memory was 58.7MB in the beginning and 113.2MB in the end (delta: 54.5MB). Free memory was 30.7MB in the beginning and 92.3MB in the end (delta: -61.5MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,773 INFO L158 Benchmark]: Witness Printer took 148.02ms. Allocated memory is still 113.2MB. Free memory was 92.3MB in the beginning and 86.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:50:23,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory was 41.1MB in the beginning and 41.1MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.47ms. Allocated memory is still 58.7MB. Free memory was 37.7MB in the beginning and 43.3MB in the end (delta: -5.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.01ms. Allocated memory is still 58.7MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.56ms. Allocated memory is still 58.7MB. Free memory was 41.8MB in the beginning and 40.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 431.26ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 31.4MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7218.76ms. Allocated memory was 58.7MB in the beginning and 113.2MB in the end (delta: 54.5MB). Free memory was 30.7MB in the beginning and 92.3MB in the end (delta: -61.5MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 148.02ms. Allocated memory is still 113.2MB. Free memory was 92.3MB in the beginning and 86.0MB in the end (delta: 6.3MB). 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 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L29] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 1); [L30] const SORT_9 msb_SORT_9 = (SORT_9)1 << (1 - 1); [L32] const SORT_1 var_2 = 0; [L33] const SORT_1 var_5 = 1; [L34] const SORT_1 var_8 = mask_SORT_1; [L37] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_4_arg_1 = var_2; [L40] state_3 = init_4_arg_1 VAL [init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, state_3=0, var_2=0, var_5=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=1, state_3=1, var_10=0, var_10_arg_0=0, var_10_arg_1=15, var_2=0, var_5=1, var_6=1, var_6_arg_0=0, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=2, state_3=2, var_10=0, var_10_arg_0=1, var_10_arg_1=15, var_2=0, var_5=1, var_6=2, var_6_arg_0=1, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=3, state_3=3, var_10=0, var_10_arg_0=2, var_10_arg_1=15, var_2=0, var_5=1, var_6=3, var_6_arg_0=2, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=4, state_3=4, var_10=0, var_10_arg_0=3, var_10_arg_1=15, var_2=0, var_5=1, var_6=4, var_6_arg_0=3, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=5, state_3=5, var_10=0, var_10_arg_0=4, var_10_arg_1=15, var_2=0, var_5=1, var_6=5, var_6_arg_0=4, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=6, state_3=6, var_10=0, var_10_arg_0=5, var_10_arg_1=15, var_2=0, var_5=1, var_6=6, var_6_arg_0=5, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=7, state_3=7, var_10=0, var_10_arg_0=6, var_10_arg_1=15, var_2=0, var_5=1, var_6=7, var_6_arg_0=6, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=8, state_3=8, var_10=0, var_10_arg_0=7, var_10_arg_1=15, var_2=0, var_5=1, var_6=8, var_6_arg_0=7, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=9, state_3=9, var_10=0, var_10_arg_0=8, var_10_arg_1=15, var_2=0, var_5=1, var_6=9, var_6_arg_0=8, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=10, state_3=10, var_10=0, var_10_arg_0=9, var_10_arg_1=15, var_2=0, var_5=1, var_6=10, var_6_arg_0=9, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=11, state_3=11, var_10=0, var_10_arg_0=10, var_10_arg_1=15, var_2=0, var_5=1, var_6=11, var_6_arg_0=10, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=12, state_3=12, var_10=0, var_10_arg_0=11, var_10_arg_1=15, var_2=0, var_5=1, var_6=12, var_6_arg_0=11, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=13, state_3=13, var_10=0, var_10_arg_0=12, var_10_arg_1=15, var_2=0, var_5=1, var_6=13, var_6_arg_0=12, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=14, state_3=14, var_10=0, var_10_arg_0=13, var_10_arg_1=15, var_2=0, var_5=1, var_6=14, var_6_arg_0=13, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L49] RET __VERIFIER_assert(!(bad_11_arg_0)) [L51] SORT_1 var_6_arg_0 = state_3; [L52] SORT_1 var_6_arg_1 = var_5; [L53] SORT_1 var_6 = var_6_arg_0 + var_6_arg_1; [L54] var_6 = var_6 & mask_SORT_1 [L55] SORT_1 next_7_arg_1 = var_6; [L57] state_3 = next_7_arg_1 VAL [bad_11_arg_0=0, init_4_arg_1=0, mask_SORT_1=15, mask_SORT_9=1, msb_SORT_1=8, msb_SORT_9=1, next_7_arg_1=15, state_3=15, var_10=0, var_10_arg_0=14, var_10_arg_1=15, var_2=0, var_5=1, var_6=15, var_6_arg_0=14, var_6_arg_1=1, var_8=15] [L45] SORT_1 var_10_arg_0 = state_3; [L46] SORT_1 var_10_arg_1 = var_8; [L47] SORT_9 var_10 = var_10_arg_0 == var_10_arg_1; [L48] SORT_9 bad_11_arg_0 = var_10; [L49] CALL __VERIFIER_assert(!(bad_11_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] 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: 7.0s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 321 IncrementalHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 17 mSDtfsCounter, 321 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=4, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 2409 SizeOfPredicates, 87 NumberOfNonLiveVariables, 212 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/188 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 proved your program to be incorrect! [2022-11-18 20:50:23,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cfe89fd-6cf2-4bb8-a9a7-9286e30c2ed1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE