./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc --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 00bf5f1c372e09f37be2df6ee1a169c44244be33be26255b3ab3fdfb27265692 --- 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-5e519f3 [2022-11-02 21:12:33,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:12:33,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:12:33,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:12:33,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:12:33,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:12:33,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:12:33,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:12:33,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:12:33,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:12:33,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:12:33,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:12:33,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:12:33,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:12:33,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:12:33,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:12:33,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:12:33,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:12:33,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:12:33,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:12:33,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:12:33,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:12:33,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:12:33,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:12:33,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:12:33,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:12:33,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:12:33,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:12:33,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:12:33,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:12:33,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:12:33,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:12:33,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:12:33,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:12:33,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:12:33,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:12:33,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:12:33,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:12:33,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:12:33,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:12:33,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:12:33,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:12:33,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:12:33,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:12:33,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:12:33,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:12:33,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:12:33,367 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:12:33,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:12:33,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:12:33,369 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:12:33,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:12:33,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:12:33,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:12:33,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:12:33,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:12:33,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:12:33,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:12:33,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:12:33,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:12:33,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:12:33,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:12:33,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:12:33,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:33,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:12:33,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:12:33,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:12:33,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:12:33,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:12:33,375 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:12:33,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:12:33,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:12:33,376 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bf5f1c372e09f37be2df6ee1a169c44244be33be26255b3ab3fdfb27265692 [2022-11-02 21:12:33,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:12:33,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:12:33,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:12:33,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:12:33,733 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:12:33,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c [2022-11-02 21:12:33,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/cab25ebf7/4e6a1437224b44c8b53533f62980340b/FLAG992585011 [2022-11-02 21:12:34,405 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:12:34,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c [2022-11-02 21:12:34,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/cab25ebf7/4e6a1437224b44c8b53533f62980340b/FLAG992585011 [2022-11-02 21:12:34,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/cab25ebf7/4e6a1437224b44c8b53533f62980340b [2022-11-02 21:12:34,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:12:34,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:12:34,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:34,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:12:34,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:12:34,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:34" (1/1) ... [2022-11-02 21:12:34,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc985fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:34, skipping insertion in model container [2022-11-02 21:12:34,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:12:34" (1/1) ... [2022-11-02 21:12:34,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:12:34,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:12:34,965 WARN L230 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c[1117,1130] [2022-11-02 21:12:34,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:35,002 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:12:35,015 WARN L230 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c[1117,1130] [2022-11-02 21:12:35,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:12:35,040 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:12:35,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35 WrapperNode [2022-11-02 21:12:35,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:12:35,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:35,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:12:35,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:12:35,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,083 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-02 21:12:35,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:12:35,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:12:35,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:12:35,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:12:35,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:12:35,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:12:35,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:12:35,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:12:35,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (1/1) ... [2022-11-02 21:12:35,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:12:35,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:35,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:12:35,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:12:35,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:12:35,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:12:35,279 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:12:35,281 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:12:35,390 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:12:35,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:12:35,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:12:35,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:35 BoogieIcfgContainer [2022-11-02 21:12:35,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:12:35,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:12:35,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:12:35,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:12:35,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:12:34" (1/3) ... [2022-11-02 21:12:35,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f27bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:35, skipping insertion in model container [2022-11-02 21:12:35,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:12:35" (2/3) ... [2022-11-02 21:12:35,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f27bba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:12:35, skipping insertion in model container [2022-11-02 21:12:35,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:35" (3/3) ... [2022-11-02 21:12:35,417 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.count2.c [2022-11-02 21:12:35,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:12:35,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:12:35,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:12:35,537 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;@3166ba73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:12:35,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:12:35,552 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) [2022-11-02 21:12:35,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 21:12:35,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:35,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 21:12:35,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 21:12:35,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:35,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960722030] [2022-11-02 21:12:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:35,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:36,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:36,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960722030] [2022-11-02 21:12:36,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960722030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:12:36,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:12:36,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:12:36,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639165028] [2022-11-02 21:12:36,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:12:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:12:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:12:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:12:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:12:36,242 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) [2022-11-02 21:12:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:12:36,291 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2022-11-02 21:12:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:12:36,293 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 [2022-11-02 21:12:36,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:12:36,302 INFO L225 Difference]: With dead ends: 19 [2022-11-02 21:12:36,303 INFO L226 Difference]: Without dead ends: 10 [2022-11-02 21:12:36,306 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 [2022-11-02 21:12:36,309 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:12:36,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:12:36,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-02 21:12:36,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-02 21:12:36,344 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) [2022-11-02 21:12:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-02 21:12:36,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-02 21:12:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:12:36,347 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-02 21:12:36,348 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) [2022-11-02 21:12:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-02 21:12:36,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:12:36,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:12:36,349 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 21:12:36,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:12:36,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:12:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:12:36,350 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-02 21:12:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:12:36,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539086086] [2022-11-02 21:12:36,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:12:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:12:36,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:12:36,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539086086] [2022-11-02 21:12:36,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539086086] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:12:36,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818515051] [2022-11-02 21:12:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:12:36,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:12:36,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:12:36,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:12:36,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:12:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:12:37,072 WARN L261 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-02 21:12:37,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:14:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:20,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:14:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:22,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818515051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:14:22,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:14:22,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-02 21:14:22,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557854728] [2022-11-02 21:14:22,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:14:22,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:14:22,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:22,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:14:22,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:14:22,666 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2022-11-02 21:14:22,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:22,741 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-02 21:14:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:14:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-02 21:14:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:22,743 INFO L225 Difference]: With dead ends: 16 [2022-11-02 21:14:22,743 INFO L226 Difference]: Without dead ends: 14 [2022-11-02 21:14:22,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:14:22,745 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:22,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 22 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:14:22,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-02 21:14:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-02 21:14:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:14:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-02 21:14:22,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-02 21:14:22,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:22,750 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-02 21:14:22,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2022-11-02 21:14:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-02 21:14:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:14:22,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:22,752 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-02 21:14:22,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:14:22,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:14:22,966 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:14:22,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-02 21:14:22,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:14:22,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698934352] [2022-11-02 21:14:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:22,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:14:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:14:23,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:14:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:14:23,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:14:23,121 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:14:23,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:14:23,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:14:23,141 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-02 21:14:23,146 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:14:23,170 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:23,171 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:23,171 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:23,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:14:23 BoogieIcfgContainer [2022-11-02 21:14:23,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:14:23,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:14:23,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:14:23,183 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:14:23,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:12:35" (3/4) ... [2022-11-02 21:14:23,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:14:23,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:14:23,188 INFO L158 Benchmark]: Toolchain (without parser) took 108423.75ms. Allocated memory was 113.2MB in the beginning and 662.7MB in the end (delta: 549.5MB). Free memory was 84.8MB in the beginning and 321.7MB in the end (delta: -236.9MB). Peak memory consumption was 310.7MB. Max. memory is 16.1GB. [2022-11-02 21:14:23,189 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:23,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.77ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 84.6MB in the beginning and 139.6MB in the end (delta: -55.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:14:23,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.33ms. Allocated memory is still 163.6MB. Free memory was 139.6MB in the beginning and 138.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:14:23,198 INFO L158 Benchmark]: Boogie Preprocessor took 41.94ms. Allocated memory is still 163.6MB. Free memory was 138.0MB in the beginning and 137.1MB in the end (delta: 880.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:23,198 INFO L158 Benchmark]: RCFGBuilder took 273.98ms. Allocated memory is still 163.6MB. Free memory was 137.1MB in the beginning and 127.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:14:23,199 INFO L158 Benchmark]: TraceAbstraction took 107778.75ms. Allocated memory was 163.6MB in the beginning and 662.7MB in the end (delta: 499.1MB). Free memory was 126.7MB in the beginning and 322.8MB in the end (delta: -196.1MB). Peak memory consumption was 306.1MB. Max. memory is 16.1GB. [2022-11-02 21:14:23,199 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 662.7MB. Free memory was 322.8MB in the beginning and 321.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:23,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 113.2MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.77ms. Allocated memory was 113.2MB in the beginning and 163.6MB in the end (delta: 50.3MB). Free memory was 84.6MB in the beginning and 139.6MB in the end (delta: -55.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.33ms. Allocated memory is still 163.6MB. Free memory was 139.6MB in the beginning and 138.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.94ms. Allocated memory is still 163.6MB. Free memory was 138.0MB in the beginning and 137.1MB in the end (delta: 880.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 273.98ms. Allocated memory is still 163.6MB. Free memory was 137.1MB in the beginning and 127.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 107778.75ms. Allocated memory was 163.6MB in the beginning and 662.7MB in the end (delta: 499.1MB). Free memory was 126.7MB in the beginning and 322.8MB in the end (delta: -196.1MB). Peak memory consumption was 306.1MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 662.7MB. Free memory was 322.8MB in the beginning and 321.7MB in the end (delta: 1.0MB). 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 - 3); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (3 - 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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, state_3=0, var_2=0, var_5=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=1, state_3=1, var_10=0, var_10_arg_0=0, var_10_arg_1=7, var_2=0, var_5=1, var_6=1, var_6_arg_0=0, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=7, state_3=7, var_10=0, var_10_arg_0=1, var_10_arg_1=7, var_2=0, var_5=1, var_6=7, var_6_arg_0=1, var_6_arg_1=1, var_8=7] [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: 107.6s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 9 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 106.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 601 SizeOfPredicates, 16 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 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 [2022-11-02 21:14:23,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/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_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc --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 00bf5f1c372e09f37be2df6ee1a169c44244be33be26255b3ab3fdfb27265692 --- 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-5e519f3 [2022-11-02 21:14:25,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:14:25,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:14:25,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:14:25,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:14:25,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:14:25,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:14:25,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:14:25,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:14:25,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:14:25,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:14:25,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:14:25,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:14:25,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:14:25,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:14:25,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:14:25,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:14:25,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:14:25,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:14:25,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:14:25,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:14:25,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:14:25,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:14:25,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:14:25,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:14:25,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:14:25,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:14:25,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:14:25,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:14:25,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:14:25,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:14:25,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:14:25,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:14:25,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:14:25,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:14:25,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:14:25,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:14:25,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:14:25,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:14:25,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:14:25,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:14:25,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 21:14:25,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:14:25,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:14:25,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:14:25,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:14:25,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:14:25,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:14:25,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:14:25,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:14:25,744 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:14:25,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:14:25,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:14:25,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:14:25,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:14:25,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:14:25,746 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:14:25,746 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:14:25,746 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:14:25,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:14:25,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:14:25,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:14:25,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:14:25,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:14:25,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:14:25,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:14:25,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:14:25,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:14:25,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:14:25,749 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:14:25,749 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:14:25,749 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:14:25,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:14:25,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:14:25,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:14:25,750 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bf5f1c372e09f37be2df6ee1a169c44244be33be26255b3ab3fdfb27265692 [2022-11-02 21:14:26,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:14:26,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:14:26,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:14:26,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:14:26,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:14:26,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c [2022-11-02 21:14:26,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/15c578cdb/06205a8d875b49789f4c9abb55e5db99/FLAGd47c8a6ac [2022-11-02 21:14:26,735 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:14:26,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c [2022-11-02 21:14:26,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/15c578cdb/06205a8d875b49789f4c9abb55e5db99/FLAGd47c8a6ac [2022-11-02 21:14:27,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/data/15c578cdb/06205a8d875b49789f4c9abb55e5db99 [2022-11-02 21:14:27,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:14:27,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:14:27,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:14:27,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:14:27,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:14:27,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d2133c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27, skipping insertion in model container [2022-11-02 21:14:27,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:14:27,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:14:27,341 WARN L230 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c[1117,1130] [2022-11-02 21:14:27,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:14:27,389 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:14:27,417 WARN L230 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_66608db9-c3b6-49a8-be95-6b9fc1340a15/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.count2.c[1117,1130] [2022-11-02 21:14:27,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:14:27,454 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:14:27,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27 WrapperNode [2022-11-02 21:14:27,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:14:27,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:14:27,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:14:27,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:14:27,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,491 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-11-02 21:14:27,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:14:27,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:14:27,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:14:27,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:14:27,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:14:27,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:14:27,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:14:27,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:14:27,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (1/1) ... [2022-11-02 21:14:27,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:14:27,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:14:27,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:14:27,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:14:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:14:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:14:27,676 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:14:27,678 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:14:27,828 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:14:27,834 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:14:27,835 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:14:27,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:14:27 BoogieIcfgContainer [2022-11-02 21:14:27,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:14:27,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:14:27,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:14:27,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:14:27,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:14:27" (1/3) ... [2022-11-02 21:14:27,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dad98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:14:27, skipping insertion in model container [2022-11-02 21:14:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:14:27" (2/3) ... [2022-11-02 21:14:27,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dad98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:14:27, skipping insertion in model container [2022-11-02 21:14:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:14:27" (3/3) ... [2022-11-02 21:14:27,846 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.count2.c [2022-11-02 21:14:27,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:14:27,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:14:27,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:14:27,937 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;@6f90d1ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:14:27,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:14:27,942 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) [2022-11-02 21:14:27,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 21:14:27,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:27,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 21:14:27,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:14:27,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:27,956 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-02 21:14:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:14:27,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486126707] [2022-11-02 21:14:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:27,970 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:14:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:14:27,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:14:27,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:14:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:28,093 WARN L261 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 21:14:28,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:14:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:28,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:14:28,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:14:28,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486126707] [2022-11-02 21:14:28,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486126707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:14:28,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:14:28,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:14:28,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556362318] [2022-11-02 21:14:28,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:14:28,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:14:28,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:14:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:14:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:14:28,406 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) [2022-11-02 21:14:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:28,493 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-02 21:14:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:14:28,495 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 [2022-11-02 21:14:28,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:28,501 INFO L225 Difference]: With dead ends: 20 [2022-11-02 21:14:28,501 INFO L226 Difference]: Without dead ends: 11 [2022-11-02 21:14:28,504 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 [2022-11-02 21:14:28,508 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 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 [2022-11-02 21:14:28,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:14:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-02 21:14:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-02 21:14:28,547 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) [2022-11-02 21:14:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-02 21:14:28,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-02 21:14:28,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:28,550 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-02 21:14:28,551 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) [2022-11-02 21:14:28,551 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-02 21:14:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-02 21:14:28,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:28,552 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-02 21:14:28,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-02 21:14:28,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:14:28,758 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:14:28,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-02 21:14:28,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:14:28,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798133268] [2022-11-02 21:14:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:14:28,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:14:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:14:28,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:14:28,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:14:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:14:28,816 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-02 21:14:28,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:14:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:28,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:14:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:29,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:14:29,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798133268] [2022-11-02 21:14:29,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798133268] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:14:29,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:14:29,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-02 21:14:29,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325975483] [2022-11-02 21:14:29,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:14:29,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:14:29,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:14:29,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:14:29,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:14:29,095 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) [2022-11-02 21:14:29,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:29,239 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-02 21:14:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:14:29,241 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 [2022-11-02 21:14:29,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:29,242 INFO L225 Difference]: With dead ends: 19 [2022-11-02 21:14:29,242 INFO L226 Difference]: Without dead ends: 17 [2022-11-02 21:14:29,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:14:29,246 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:29,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 18 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:14:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-02 21:14:29,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-02 21:14:29,263 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) [2022-11-02 21:14:29,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-02 21:14:29,265 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-02 21:14:29,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:29,267 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-02 21:14:29,267 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) [2022-11-02 21:14:29,268 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-02 21:14:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 21:14:29,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:29,269 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-02 21:14:29,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:14:29,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:14:29,487 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:14:29,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-02 21:14:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:14:29,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265940784] [2022-11-02 21:14:29,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:14:29,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:14:29,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:14:29,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:14:29,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:14:29,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:14:29,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:14:29,537 WARN L261 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-02 21:14:29,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:14:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:29,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:14:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:14:29,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:14:29,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265940784] [2022-11-02 21:14:29,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265940784] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:14:29,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:14:29,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-02 21:14:29,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494584496] [2022-11-02 21:14:29,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:14:29,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:14:29,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:14:30,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:14:30,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:14:30,002 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) [2022-11-02 21:14:30,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:14:30,342 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-02 21:14:30,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:14:30,346 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 [2022-11-02 21:14:30,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:14:30,346 INFO L225 Difference]: With dead ends: 31 [2022-11-02 21:14:30,346 INFO L226 Difference]: Without dead ends: 29 [2022-11-02 21:14:30,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-11-02 21:14:30,348 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:14:30,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 24 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:14:30,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-02 21:14:30,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-02 21:14:30,359 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) [2022-11-02 21:14:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-02 21:14:30,360 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-02 21:14:30,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:14:30,361 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-02 21:14:30,361 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) [2022-11-02 21:14:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-02 21:14:30,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-02 21:14:30,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:14:30,363 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-02 21:14:30,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:14:30,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:14:30,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:14:30,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:14:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2022-11-02 21:14:30,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:14:30,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305939206] [2022-11-02 21:14:30,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:14:30,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:14:30,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:14:30,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:14:30,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:14:30,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-02 21:14:30,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-02 21:14:30,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:14:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:14:30,769 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-02 21:14:30,770 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:14:30,771 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:14:30,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-02 21:14:30,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:14:30,976 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-02 21:14:30,980 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:14:31,012 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,012 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,013 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:14:31 BoogieIcfgContainer [2022-11-02 21:14:31,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:14:31,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:14:31,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:14:31,023 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:14:31,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:14:27" (3/4) ... [2022-11-02 21:14:31,026 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-02 21:14:31,037 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,037 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,037 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,037 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,038 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,038 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,038 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,038 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:14:31,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:14:31,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:14:31,080 INFO L158 Benchmark]: Toolchain (without parser) took 3953.69ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.4MB in the beginning and 28.8MB in the end (delta: 4.5MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-02 21:14:31,081 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:31,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.28ms. Allocated memory is still 56.6MB. Free memory was 33.1MB in the beginning and 39.0MB in the end (delta: -5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:14:31,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.11ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 37.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:31,082 INFO L158 Benchmark]: Boogie Preprocessor took 50.19ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:14:31,082 INFO L158 Benchmark]: RCFGBuilder took 293.65ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 27.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:14:31,082 INFO L158 Benchmark]: TraceAbstraction took 3183.39ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 26.5MB in the beginning and 33.0MB in the end (delta: -6.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:14:31,083 INFO L158 Benchmark]: Witness Printer took 57.03ms. Allocated memory is still 75.5MB. Free memory was 33.0MB in the beginning and 28.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:14:31,085 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 56.6MB. Free memory was 36.8MB in the beginning and 36.7MB in the end (delta: 38.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.28ms. Allocated memory is still 56.6MB. Free memory was 33.1MB in the beginning and 39.0MB in the end (delta: -5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.11ms. Allocated memory is still 56.6MB. Free memory was 39.0MB in the beginning and 37.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.19ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.65ms. Allocated memory is still 56.6MB. Free memory was 36.4MB in the beginning and 27.3MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3183.39ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 26.5MB in the beginning and 33.0MB in the end (delta: -6.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 57.03ms. Allocated memory is still 75.5MB. Free memory was 33.0MB in the beginning and 28.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.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 - 3); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (3 - 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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, state_3=0, var_2=0, var_5=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=1, state_3=1, var_10=0, var_10_arg_0=0, var_10_arg_1=7, var_2=0, var_5=1, var_6=1, var_6_arg_0=0, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=2, state_3=2, var_10=0, var_10_arg_0=1, var_10_arg_1=7, var_2=0, var_5=1, var_6=2, var_6_arg_0=1, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=3, state_3=3, var_10=0, var_10_arg_0=2, var_10_arg_1=7, var_2=0, var_5=1, var_6=3, var_6_arg_0=2, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=4, state_3=4, var_10=0, var_10_arg_0=3, var_10_arg_1=7, var_2=0, var_5=1, var_6=4, var_6_arg_0=3, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=5, state_3=5, var_10=0, var_10_arg_0=4, var_10_arg_1=7, var_2=0, var_5=1, var_6=5, var_6_arg_0=4, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=6, state_3=6, var_10=0, var_10_arg_0=5, var_10_arg_1=7, var_2=0, var_5=1, var_6=6, var_6_arg_0=5, var_6_arg_1=1, var_8=7] [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=7, mask_SORT_9=1, msb_SORT_1=4, msb_SORT_9=1, next_7_arg_1=7, state_3=7, var_10=0, var_10_arg_0=6, var_10_arg_1=7, var_2=0, var_5=1, var_6=7, var_6_arg_0=6, var_6_arg_1=1, var_8=7] [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: 3.1s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 13 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 48 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/34 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! [2022-11-02 21:14:31,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66608db9-c3b6-49a8-be95-6b9fc1340a15/bin/uautomizer-Dbtcem3rbc/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