./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sum_by_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sum_by_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbdeb806056afbf44cc985ff91f53f00e848d18cfefb92d1f6744eb19cf6d91b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:35:46,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:46,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:46,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:46,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:46,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:46,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:46,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:46,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:46,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:46,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:46,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:46,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:46,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:46,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:46,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:46,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:46,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:46,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:46,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:46,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:46,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:46,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:46,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:46,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:46,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:46,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:46,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:46,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:46,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:46,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:46,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:46,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:46,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:46,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:46,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:46,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:46,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:46,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:46,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:46,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:46,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:35:46,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:46,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:46,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:46,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:46,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:35:46,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:35:46,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:46,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:46,589 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:46,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:46,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:35:46,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:46,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:35:46,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:46,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:35:46,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:35:46,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:35:46,592 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:35:46,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:46,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:46,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:35:46,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:46,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:46,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:35:46,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:46,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:46,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:35:46,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:35:46,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:46,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:35:46,595 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:35:46,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:35:46,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:35:46,596 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_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbdeb806056afbf44cc985ff91f53f00e848d18cfefb92d1f6744eb19cf6d91b [2022-11-18 19:35:46,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:46,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:46,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:46,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:46,983 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:46,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loops-crafted-1/sum_by_3.c [2022-11-18 19:35:47,070 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/data/3a492c3bc/44c73be9c8e04d0fa7f3f2e991b8f12f/FLAG8686deef9 [2022-11-18 19:35:47,723 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:47,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/sv-benchmarks/c/loops-crafted-1/sum_by_3.c [2022-11-18 19:35:47,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/data/3a492c3bc/44c73be9c8e04d0fa7f3f2e991b8f12f/FLAG8686deef9 [2022-11-18 19:35:48,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/data/3a492c3bc/44c73be9c8e04d0fa7f3f2e991b8f12f [2022-11-18 19:35:48,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:48,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:48,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:48,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:48,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:48,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139128e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48, skipping insertion in model container [2022-11-18 19:35:48,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:48,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:48,317 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/sv-benchmarks/c/loops-crafted-1/sum_by_3.c[406,419] [2022-11-18 19:35:48,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:48,343 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:48,357 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/sv-benchmarks/c/loops-crafted-1/sum_by_3.c[406,419] [2022-11-18 19:35:48,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:48,378 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:48,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48 WrapperNode [2022-11-18 19:35:48,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:48,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:48,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:48,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:48,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,418 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-11-18 19:35:48,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:48,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:48,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:48,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:48,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:48,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:48,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:48,442 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:48,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (1/1) ... [2022-11-18 19:35:48,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:48,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:48,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:48,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:35:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:35:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:48,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:48,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:48,770 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:48,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:48,778 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 19:35:48,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:48 BoogieIcfgContainer [2022-11-18 19:35:48,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:48,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:35:48,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:35:48,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:35:48,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:35:48" (1/3) ... [2022-11-18 19:35:48,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b2568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:48, skipping insertion in model container [2022-11-18 19:35:48,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:48" (2/3) ... [2022-11-18 19:35:48,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b2568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:48, skipping insertion in model container [2022-11-18 19:35:48,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:48" (3/3) ... [2022-11-18 19:35:48,793 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_by_3.c [2022-11-18 19:35:48,818 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:35:48,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:35:48,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:35:48,891 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;@971888a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:35:48,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:35:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:48,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:35:48,907 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:48,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:48,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:48,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1645470860, now seen corresponding path program 1 times [2022-11-18 19:35:48,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:48,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140700915] [2022-11-18 19:35:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:48,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:49,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:49,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140700915] [2022-11-18 19:35:49,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140700915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:49,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:49,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:35:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076786866] [2022-11-18 19:35:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:35:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:49,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:35:49,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:35:49,232 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:49,252 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2022-11-18 19:35:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:35:49,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 19:35:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:49,266 INFO L225 Difference]: With dead ends: 28 [2022-11-18 19:35:49,266 INFO L226 Difference]: Without dead ends: 12 [2022-11-18 19:35:49,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:35:49,293 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:49,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:35:49,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-18 19:35:49,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 19:35:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-18 19:35:49,363 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 11 [2022-11-18 19:35:49,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:49,364 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-18 19:35:49,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-18 19:35:49,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:35:49,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:49,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:49,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:35:49,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:49,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:49,369 INFO L85 PathProgramCache]: Analyzing trace with hash -26777608, now seen corresponding path program 1 times [2022-11-18 19:35:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:49,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298951974] [2022-11-18 19:35:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:49,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:50,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:50,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298951974] [2022-11-18 19:35:50,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298951974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:50,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:50,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:35:50,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921362175] [2022-11-18 19:35:50,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:50,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:35:50,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:50,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:35:50,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:35:50,887 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:51,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:51,156 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-11-18 19:35:51,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:35:51,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 19:35:51,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:51,160 INFO L225 Difference]: With dead ends: 33 [2022-11-18 19:35:51,160 INFO L226 Difference]: Without dead ends: 29 [2022-11-18 19:35:51,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:35:51,163 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 42 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:51,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 27 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:35:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-18 19:35:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2022-11-18 19:35:51,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-18 19:35:51,172 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2022-11-18 19:35:51,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:51,172 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-18 19:35:51,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-18 19:35:51,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:35:51,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:51,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:51,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:35:51,174 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:35:51,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:51,175 INFO L85 PathProgramCache]: Analyzing trace with hash 182012736, now seen corresponding path program 1 times [2022-11-18 19:35:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:51,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85880026] [2022-11-18 19:35:51,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:51,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:52,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:52,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85880026] [2022-11-18 19:35:52,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85880026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:35:52,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135979981] [2022-11-18 19:35:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:52,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:35:52,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:52,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:35:52,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:35:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:52,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:35:52,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:53,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:55,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:55,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135979981] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:35:55,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:35:55,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2022-11-18 19:35:55,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387411508] [2022-11-18 19:35:55,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:35:55,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:35:55,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:55,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:35:55,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:35:55,515 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:57,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:36:06,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:36:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:07,640 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2022-11-18 19:36:07,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-18 19:36:07,641 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 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 12 [2022-11-18 19:36:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:07,641 INFO L225 Difference]: With dead ends: 64 [2022-11-18 19:36:07,642 INFO L226 Difference]: Without dead ends: 42 [2022-11-18 19:36:07,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2022-11-18 19:36:07,644 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 210 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:07,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 44 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 195 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-18 19:36:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-18 19:36:07,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 23. [2022-11-18 19:36:07,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-18 19:36:07,659 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 12 [2022-11-18 19:36:07,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:07,659 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 19:36:07,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:07,660 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-18 19:36:07,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:36:07,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:07,661 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:07,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 19:36:07,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:07,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:36:07,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:07,868 INFO L85 PathProgramCache]: Analyzing trace with hash 133150594, now seen corresponding path program 1 times [2022-11-18 19:36:07,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:07,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057669264] [2022-11-18 19:36:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:07,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:08,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057669264] [2022-11-18 19:36:08,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057669264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:36:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143201128] [2022-11-18 19:36:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:08,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:08,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:36:08,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:36:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:08,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:36:08,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:36:08,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:36:08,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143201128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:08,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:36:08,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-11-18 19:36:08,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919604848] [2022-11-18 19:36:08,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:08,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:08,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:08,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:36:08,344 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:08,398 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-11-18 19:36:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:36:08,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 14 [2022-11-18 19:36:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:08,400 INFO L225 Difference]: With dead ends: 28 [2022-11-18 19:36:08,400 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 19:36:08,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:36:08,405 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:08,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:36:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 19:36:08,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 19:36:08,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-18 19:36:08,414 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 14 [2022-11-18 19:36:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:08,415 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-18 19:36:08,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:08,415 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2022-11-18 19:36:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:36:08,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:08,416 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:08,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:08,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:08,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:36:08,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:08,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1728071361, now seen corresponding path program 1 times [2022-11-18 19:36:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:08,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024668112] [2022-11-18 19:36:08,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:08,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:08,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:08,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024668112] [2022-11-18 19:36:08,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024668112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:36:08,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881706173] [2022-11-18 19:36:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:08,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:08,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:08,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:36:08,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:36:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:08,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 19:36:08,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:09,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:36:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:36:09,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881706173] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 19:36:09,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:36:09,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 7] total 12 [2022-11-18 19:36:09,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416088276] [2022-11-18 19:36:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:09,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:09,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:36:09,385 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:09,440 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2022-11-18 19:36:09,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:36:09,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Word has length 14 [2022-11-18 19:36:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:09,444 INFO L225 Difference]: With dead ends: 25 [2022-11-18 19:36:09,444 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 19:36:09,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:36:09,447 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:09,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:36:09,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 19:36:09,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 19:36:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-11-18 19:36:09,465 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2022-11-18 19:36:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:09,465 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-11-18 19:36:09,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-11-18 19:36:09,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:36:09,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:09,466 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:09,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:36:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:09,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:36:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:09,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2104097272, now seen corresponding path program 2 times [2022-11-18 19:36:09,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:09,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079382927] [2022-11-18 19:36:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:09,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,601 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:10,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:10,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079382927] [2022-11-18 19:36:10,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079382927] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:36:10,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100887025] [2022-11-18 19:36:10,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:36:10,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:36:10,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:10,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:36:10,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:36:10,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:36:10,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:36:10,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 19:36:10,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:36:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:11,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:36:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:13,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100887025] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:36:13,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:36:13,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-11-18 19:36:13,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359764844] [2022-11-18 19:36:13,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:36:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:36:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:36:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:36:13,580 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 28 states, 28 states have (on average 1.5) internal successors, (42), 27 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,832 WARN L233 SmtUtils]: Spent 16.11s on a formula simplification. DAG size of input: 44 DAG size of output: 27 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:36:56,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:36:58,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:37:09,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:37:33,676 WARN L233 SmtUtils]: Spent 11.72s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:37:46,626 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:37:49,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:37:59,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:38:01,805 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (* 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse0 (mod c_~SIZE~0 4294967296))) (and (<= (mod (div (mod (+ |c_ULTIMATE.start_main_~i~0#1| (* |c_ULTIMATE.start_main_~j~0#1| 2)) 4294967296) 3) 4294967296) .cse0) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= (mod (div (mod (+ |c_ULTIMATE.start_main_~j~0#1| |c_ULTIMATE.start_main_~i~0#1| |c_ULTIMATE.start_main_~k~0#1|) 4294967296) 3) 4294967296) .cse0) (<= (mod (div (mod (+ .cse1 3) 4294967296) 3) 4294967296) .cse0) (<= (mod (div (mod (+ .cse1 12) 4294967296) 3) 4294967296) .cse0) (<= (mod (div (mod (+ 9 .cse1) 4294967296) 3) 4294967296) .cse0) (<= (mod (div (mod (+ .cse1 6) 4294967296) 3) 4294967296) .cse0) (<= (mod (div (mod .cse1 4294967296) 3) 4294967296) .cse0) (= 20000001 c_~SIZE~0))) is different from false [2022-11-18 19:38:06,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:38:15,625 WARN L233 SmtUtils]: Spent 6.29s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:38:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:22,811 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-11-18 19:38:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-18 19:38:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.5) internal successors, (42), 27 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 19:38:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:22,812 INFO L225 Difference]: With dead ends: 60 [2022-11-18 19:38:22,813 INFO L226 Difference]: Without dead ends: 22 [2022-11-18 19:38:22,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 111.8s TimeCoverageRelationStatistics Valid=548, Invalid=1700, Unknown=12, NotChecked=92, Total=2352 [2022-11-18 19:38:22,818 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 180 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 14 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:22,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 42 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 249 Invalid, 6 Unknown, 0 Unchecked, 20.3s Time] [2022-11-18 19:38:22,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-18 19:38:22,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-18 19:38:22,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-11-18 19:38:22,832 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 15 [2022-11-18 19:38:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:22,832 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-11-18 19:38:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.5) internal successors, (42), 27 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-11-18 19:38:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-18 19:38:22,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:38:22,834 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:38:22,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:23,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:23,035 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:38:23,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:38:23,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1486288120, now seen corresponding path program 3 times [2022-11-18 19:38:23,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:38:23,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455827236] [2022-11-18 19:38:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:38:23,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:38:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:38:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:38:24,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:38:24,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455827236] [2022-11-18 19:38:24,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455827236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:38:24,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609314488] [2022-11-18 19:38:24,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:38:24,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:38:24,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:38:24,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:38:27,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-18 19:38:27,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:38:27,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 19:38:27,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:38:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-18 19:38:31,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:38:31,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609314488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:38:31,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:38:31,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [16] total 25 [2022-11-18 19:38:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021524142] [2022-11-18 19:38:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:38:31,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:38:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:38:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:38:31,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:38:31,701 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:38:31,849 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-11-18 19:38:31,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:38:31,850 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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 21 [2022-11-18 19:38:31,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:38:31,850 INFO L225 Difference]: With dead ends: 22 [2022-11-18 19:38:31,850 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:38:31,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:38:31,852 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:38:31,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:38:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:38:31,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:38:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:38:31,856 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-11-18 19:38:31,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:38:31,856 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:38:31,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:38:31,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:38:31,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:38:31,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:38:31,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:38:32,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:38:32,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:38:43,613 WARN L233 SmtUtils]: Spent 11.44s on a formula simplification. DAG size of input: 112 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-18 19:38:50,493 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 82 DAG size of output: 18 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-18 19:39:20,065 WARN L233 SmtUtils]: Spent 29.57s on a formula simplification. DAG size of input: 130 DAG size of output: 72 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-18 19:39:20,067 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-18 19:39:20,067 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:39:20,067 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:39:20,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:39:20,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-11-18 19:39:20,068 INFO L902 garLoopResultBuilder]: At program point L33(lines 16 34) the Hoare annotation is: true [2022-11-18 19:39:20,068 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:39:20,068 INFO L895 garLoopResultBuilder]: At program point L29-2(lines 29 31) the Hoare annotation is: (let ((.cse5 (mod ~SIZE~0 4294967296))) (let ((.cse6 (<= (mod (div (mod (+ (* 2 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~i~0#1|) 4294967296) 3) 4294967296) .cse5)) (.cse1 (<= 20000001 ~SIZE~0)) (.cse2 (<= ~SIZE~0 20000001)) (.cse3 (<= (mod (div (mod (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~k~0#1|) 4294967296) 3) 4294967296) .cse5)) (.cse0 (* 3 |ULTIMATE.start_main_~i~0#1|)) (.cse4 (mod |ULTIMATE.start_main_~n~0#1| 4294967296))) (or (and (<= 3 .cse0) .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| (+ |ULTIMATE.start_main_~j~0#1| (* (div |ULTIMATE.start_main_~i~0#1| 4294967296) 4294967296))) .cse3 (<= (+ 20000000 |ULTIMATE.start_main_~i~0#1|) ~SIZE~0) (<= .cse4 .cse5)) (and .cse6 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 .cse3 (<= (+ |ULTIMATE.start_main_~n~0#1| (* (div ~SIZE~0 4294967296) 4294967296)) (+ (* (div |ULTIMATE.start_main_~n~0#1| 4294967296) 4294967296) 20000001))) (and .cse6 (not (< (mod |ULTIMATE.start_main_~k~0#1| 4294967296) .cse4)) .cse1 .cse2 .cse3 (<= (mod (div (mod .cse0 4294967296) 3) 4294967296) .cse5) (not (< (mod |ULTIMATE.start_main_~j~0#1| 4294967296) .cse4)) (or (< (mod (+ |ULTIMATE.start_main_~i~0#1| 1) 4294967296) .cse4) (<= (mod (div (mod (+ 3 .cse0) 4294967296) 3) 4294967296) .cse5) (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) .cse4))))))) [2022-11-18 19:39:20,068 INFO L899 garLoopResultBuilder]: For program point L29-3(lines 29 31) no Hoare annotation was computed. [2022-11-18 19:39:20,068 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 25 27) the Hoare annotation is: (let ((.cse4 (mod ~SIZE~0 4294967296))) (let ((.cse3 (mod |ULTIMATE.start_main_~n~0#1| 4294967296)) (.cse0 (<= (mod (div (mod (+ (* 2 |ULTIMATE.start_main_~j~0#1|) |ULTIMATE.start_main_~i~0#1|) 4294967296) 3) 4294967296) .cse4)) (.cse1 (<= 20000001 ~SIZE~0)) (.cse2 (<= ~SIZE~0 20000001))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~0#1| 1) (<= .cse3 .cse4)) (and .cse0 .cse1 .cse2 (let ((.cse5 (mod |ULTIMATE.start_main_~i~0#1| 4294967296))) (< (+ .cse3 (* (div .cse5 4294967296) 4294967296)) (+ .cse5 1))) (<= (mod (div (mod (* 3 |ULTIMATE.start_main_~i~0#1|) 4294967296) 3) 4294967296) .cse4) (not (< (mod |ULTIMATE.start_main_~j~0#1| 4294967296) .cse3))) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2 (<= (+ |ULTIMATE.start_main_~n~0#1| (* (div ~SIZE~0 4294967296) 4294967296)) (+ (* (div |ULTIMATE.start_main_~n~0#1| 4294967296) 4294967296) 20000001)))))) [2022-11-18 19:39:20,069 INFO L899 garLoopResultBuilder]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2022-11-18 19:39:20,069 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 23) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~n~0#1| 4294967296))) (let ((.cse1 (= ~SIZE~0 20000001)) (.cse2 (<= .cse0 (mod ~SIZE~0 4294967296)))) (or (and (< (mod (+ 4294967295 |ULTIMATE.start_main_~i~0#1|) 4294967296) .cse0) .cse1 .cse2) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse1 .cse2)))) [2022-11-18 19:39:20,069 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2022-11-18 19:39:20,069 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-11-18 19:39:20,069 INFO L902 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: true [2022-11-18 19:39:20,069 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-11-18 19:39:20,072 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2022-11-18 19:39:20,077 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:39:20,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:39:20 BoogieIcfgContainer [2022-11-18 19:39:20,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:39:20,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:39:20,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:39:20,107 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:39:20,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:48" (3/4) ... [2022-11-18 19:39:20,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:39:20,136 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 19:39:20,137 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 19:39:20,137 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:39:20,137 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:39:20,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:39:20,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:39:20,184 INFO L158 Benchmark]: Toolchain (without parser) took 212110.16ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 70.8MB in the beginning and 49.4MB in the end (delta: 21.4MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,184 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 102.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:39:20,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.74ms. Allocated memory is still 102.8MB. Free memory was 70.5MB in the beginning and 78.1MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.72ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,186 INFO L158 Benchmark]: Boogie Preprocessor took 21.48ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 75.5MB in the end (delta: 857.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,186 INFO L158 Benchmark]: RCFGBuilder took 340.05ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 65.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,188 INFO L158 Benchmark]: TraceAbstraction took 211322.42ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 65.0MB in the beginning and 52.5MB in the end (delta: 12.5MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,188 INFO L158 Benchmark]: Witness Printer took 76.30ms. Allocated memory is still 125.8MB. Free memory was 52.5MB in the beginning and 49.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:20,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 102.8MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.74ms. Allocated memory is still 102.8MB. Free memory was 70.5MB in the beginning and 78.1MB in the end (delta: -7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.72ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 76.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.48ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 75.5MB in the end (delta: 857.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.05ms. Allocated memory is still 102.8MB. Free memory was 75.5MB in the beginning and 65.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 211322.42ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 65.0MB in the beginning and 52.5MB in the end (delta: 12.5MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 76.30ms. Allocated memory is still 125.8MB. Free memory was 52.5MB in the beginning and 49.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 211.2s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 142.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 48.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 463 SdHoareTripleChecker+Valid, 25.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 463 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 25.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 562 IncrementalHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 54 mSDtfsCounter, 562 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 138 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 123.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 41 NumberOfFragments, 370 HoareAnnotationTreeSize, 5 FomulaSimplifications, 66 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 5524 FormulaSimplificationTreeSizeReductionInter, 47.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 16.1s InterpolantComputationTime, 174 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 3517 SizeOfPredicates, 23 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 66/163 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((2 * j + i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296 && 20000001 <= SIZE) && SIZE <= 20000001) && i == 1) && n % 4294967296 <= SIZE % 4294967296) || ((((((2 * j + i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296 && 20000001 <= SIZE) && SIZE <= 20000001) && n % 4294967296 + i % 4294967296 / 4294967296 * 4294967296 < i % 4294967296 + 1) && 3 * i % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) && !(j % 4294967296 < n % 4294967296))) || (((((2 * j + i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296 && i == 0) && 20000001 <= SIZE) && SIZE <= 20000001) && n + SIZE / 4294967296 * 4294967296 <= n / 4294967296 * 4294967296 + 20000001) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((4294967295 + i) % 4294967296 < n % 4294967296 && SIZE == 20000001) && n % 4294967296 <= SIZE % 4294967296) || ((i == 0 && SIZE == 20000001) && n % 4294967296 <= SIZE % 4294967296) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((3 <= 3 * i && 20000001 <= SIZE) && SIZE <= 20000001) && i == j + i / 4294967296 * 4294967296) && (i + j + k) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) && 20000000 + i <= SIZE) && n % 4294967296 <= SIZE % 4294967296) || ((((((2 * j + i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296 && i == 0) && 20000001 <= SIZE) && SIZE <= 20000001) && (i + j + k) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) && n + SIZE / 4294967296 * 4294967296 <= n / 4294967296 * 4294967296 + 20000001)) || ((((((((2 * j + i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296 && !(k % 4294967296 < n % 4294967296)) && 20000001 <= SIZE) && SIZE <= 20000001) && (i + j + k) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) && 3 * i % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) && !(j % 4294967296 < n % 4294967296)) && (((i + 1) % 4294967296 < n % 4294967296 || (3 + 3 * i) % 4294967296 / 3 % 4294967296 <= SIZE % 4294967296) || !(i % 4294967296 < n % 4294967296))) RESULT: Ultimate proved your program to be correct! [2022-11-18 19:39:20,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b91dbdd5-d41e-4d66-84c5-e3d61c84a4f5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE