./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD --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 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:40:45,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:40:45,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:40:45,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:40:45,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:40:45,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:40:45,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:40:45,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:40:45,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:40:45,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:40:45,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:40:45,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:40:45,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:40:45,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:40:45,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:40:45,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:40:45,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:40:45,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:40:45,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:40:45,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:40:45,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:40:45,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:40:45,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:40:45,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:40:45,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:40:45,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:40:45,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:40:45,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:40:45,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:40:45,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:40:45,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:40:45,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:40:45,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:40:45,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:40:45,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:40:45,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:40:45,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:40:45,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:40:45,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:40:45,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:40:45,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:40:45,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:40:45,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:40:45,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:40:45,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:40:45,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:40:45,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:40:45,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:40:45,524 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:40:45,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:40:45,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:40:45,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:40:45,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:40:45,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:40:45,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:40:45,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:40:45,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:40:45,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:40:45,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:40:45,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:40:45,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:40:45,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:40:45,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:40:45,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:40:45,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:45,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:40:45,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:40:45,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:40:45,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:40:45,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:40:45,532 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:40:45,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:40:45,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:40:45,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:40:45,533 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_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881c8a19bc7d985c1c357993fa89c98038c14e3d30b81b5db0457e690440ac95 [2021-10-28 23:40:45,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:40:45,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:40:45,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:40:45,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:40:45,888 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:40:45,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-28 23:40:45,976 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/data/befd3f3cd/b211ae1fb9fa47aaa587aaeeccb38695/FLAG414c421cb [2021-10-28 23:40:46,544 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:40:46,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c [2021-10-28 23:40:46,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/data/befd3f3cd/b211ae1fb9fa47aaa587aaeeccb38695/FLAG414c421cb [2021-10-28 23:40:46,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/data/befd3f3cd/b211ae1fb9fa47aaa587aaeeccb38695 [2021-10-28 23:40:46,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:40:46,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:40:46,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:46,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:40:46,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:40:46,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:46" (1/1) ... [2021-10-28 23:40:46,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bafe8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:46, skipping insertion in model container [2021-10-28 23:40:46,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:40:46" (1/1) ... [2021-10-28 23:40:46,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:40:46,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:40:47,194 WARN L228 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_442a4aba-a739-4aba-bf6f-1b93154b6d0c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-28 23:40:47,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:47,229 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:40:47,244 WARN L228 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_442a4aba-a739-4aba-bf6f-1b93154b6d0c/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound10.c[576,589] [2021-10-28 23:40:47,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:40:47,289 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:40:47,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47 WrapperNode [2021-10-28 23:40:47,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:40:47,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:47,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:40:47,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:40:47,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:40:47,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:40:47,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:40:47,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:40:47,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:40:47,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:40:47,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:40:47,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:40:47,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (1/1) ... [2021-10-28 23:40:47,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:40:47,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:47,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:40:47,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:40:47,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:40:47,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:40:47,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:40:47,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:40:47,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:40:47,860 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-28 23:40:47,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:47 BoogieIcfgContainer [2021-10-28 23:40:47,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:40:47,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:40:47,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:40:47,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:40:47,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:40:46" (1/3) ... [2021-10-28 23:40:47,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a8b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:47, skipping insertion in model container [2021-10-28 23:40:47,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:40:47" (2/3) ... [2021-10-28 23:40:47,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a8b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:40:47, skipping insertion in model container [2021-10-28 23:40:47,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:47" (3/3) ... [2021-10-28 23:40:47,892 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound10.c [2021-10-28 23:40:47,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:40:47,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-10-28 23:40:47,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:40:48,000 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:40:48,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-28 23:40:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-10-28 23:40:48,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:40:48,026 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:48,028 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:48,028 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:48,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:48,036 INFO L85 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2021-10-28 23:40:48,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:48,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998536301] [2021-10-28 23:40:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:48,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:48,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:48,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:48,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998536301] [2021-10-28 23:40:48,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998536301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:48,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:48,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:40:48,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513410892] [2021-10-28 23:40:48,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:40:48,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:48,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:40:48,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:40:48,269 INFO L87 Difference]: Start difference. First operand has 43 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-10-28 23:40:48,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:48,292 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-10-28 23:40:48,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:40:48,294 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 [2021-10-28 23:40:48,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:48,304 INFO L225 Difference]: With dead ends: 83 [2021-10-28 23:40:48,304 INFO L226 Difference]: Without dead ends: 39 [2021-10-28 23:40:48,307 INFO L786 BasicCegarLoop]: 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 [2021-10-28 23:40:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-28 23:40:48,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-28 23:40:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.25) internal successors, (40), 38 states have internal predecessors, (40), 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) [2021-10-28 23:40:48,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-10-28 23:40:48,348 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2021-10-28 23:40:48,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:48,349 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-10-28 23:40:48,350 INFO L471 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) [2021-10-28 23:40:48,350 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-10-28 23:40:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 23:40:48,351 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:48,351 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:48,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:40:48,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2021-10-28 23:40:48,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:48,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284722985] [2021-10-28 23:40:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:48,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:48,382 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:48,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468172370] [2021-10-28 23:40:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:48,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:48,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:48,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:48,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:40:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:48,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:40:48,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:49,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:49,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284722985] [2021-10-28 23:40:49,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:49,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468172370] [2021-10-28 23:40:49,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468172370] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:49,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:49,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:40:49,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231656488] [2021-10-28 23:40:49,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:40:49,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:49,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:40:49,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:40:49,065 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 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) [2021-10-28 23:40:49,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:49,456 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2021-10-28 23:40:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:40:49,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 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 [2021-10-28 23:40:49,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:49,461 INFO L225 Difference]: With dead ends: 52 [2021-10-28 23:40:49,462 INFO L226 Difference]: Without dead ends: 50 [2021-10-28 23:40:49,466 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:40:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-28 23:40:49,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-10-28 23:40:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 40 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) [2021-10-28 23:40:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2021-10-28 23:40:49,483 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2021-10-28 23:40:49,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:49,483 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2021-10-28 23:40:49,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 8 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) [2021-10-28 23:40:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2021-10-28 23:40:49,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 23:40:49,485 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:49,485 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:49,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:49,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:49,715 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:49,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2021-10-28 23:40:49,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:49,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900953766] [2021-10-28 23:40:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:49,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:49,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:49,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960153880] [2021-10-28 23:40:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:49,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:49,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:49,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:49,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:40:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:49,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:40:49,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:50,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:50,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900953766] [2021-10-28 23:40:50,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:50,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960153880] [2021-10-28 23:40:50,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960153880] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:50,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:50,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:40:50,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510887572] [2021-10-28 23:40:50,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:40:50,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:50,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:40:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:40:50,286 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-10-28 23:40:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:50,590 INFO L93 Difference]: Finished difference Result 69 states and 71 transitions. [2021-10-28 23:40:50,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:40:50,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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 13 [2021-10-28 23:40:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:50,596 INFO L225 Difference]: With dead ends: 69 [2021-10-28 23:40:50,597 INFO L226 Difference]: Without dead ends: 61 [2021-10-28 23:40:50,598 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:40:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-28 23:40:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2021-10-28 23:40:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 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) [2021-10-28 23:40:50,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2021-10-28 23:40:50,623 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 13 [2021-10-28 23:40:50,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:50,624 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2021-10-28 23:40:50,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 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) [2021-10-28 23:40:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2021-10-28 23:40:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 23:40:50,626 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:50,626 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:50,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:50,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:50,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2021-10-28 23:40:50,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:50,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200419570] [2021-10-28 23:40:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:50,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:50,879 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:50,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613697697] [2021-10-28 23:40:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:50,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:50,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:50,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:50,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:40:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:50,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:40:50,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:51,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:51,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200419570] [2021-10-28 23:40:51,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:51,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613697697] [2021-10-28 23:40:51,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613697697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:51,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:51,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:40:51,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681186773] [2021-10-28 23:40:51,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 23:40:51,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:51,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:40:51,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:40:51,098 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-28 23:40:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:51,195 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2021-10-28 23:40:51,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:40:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-28 23:40:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:51,197 INFO L225 Difference]: With dead ends: 95 [2021-10-28 23:40:51,197 INFO L226 Difference]: Without dead ends: 89 [2021-10-28 23:40:51,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:51,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-10-28 23:40:51,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2021-10-28 23:40:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.2615384615384615) internal successors, (82), 71 states have internal predecessors, (82), 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) [2021-10-28 23:40:51,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2021-10-28 23:40:51,210 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 16 [2021-10-28 23:40:51,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:51,210 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2021-10-28 23:40:51,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-28 23:40:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2021-10-28 23:40:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 23:40:51,216 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:51,216 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:51,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:51,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:51,443 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:51,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:51,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2015957290, now seen corresponding path program 1 times [2021-10-28 23:40:51,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:51,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065385880] [2021-10-28 23:40:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:51,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:51,480 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:51,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550873561] [2021-10-28 23:40:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:51,480 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:51,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:51,494 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:51,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:40:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:51,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:40:51,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:51,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:51,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065385880] [2021-10-28 23:40:51,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:51,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550873561] [2021-10-28 23:40:51,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550873561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:51,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:51,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:40:51,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727035155] [2021-10-28 23:40:51,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:40:51,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:51,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:40:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:40:51,822 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:51,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:51,980 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2021-10-28 23:40:51,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:40:51,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-28 23:40:51,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:51,985 INFO L225 Difference]: With dead ends: 72 [2021-10-28 23:40:51,985 INFO L226 Difference]: Without dead ends: 70 [2021-10-28 23:40:51,986 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:40:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-28 23:40:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-28 23:40:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.203125) internal successors, (77), 69 states have internal predecessors, (77), 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) [2021-10-28 23:40:52,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2021-10-28 23:40:52,014 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2021-10-28 23:40:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:52,014 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2021-10-28 23:40:52,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:52,015 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2021-10-28 23:40:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-28 23:40:52,016 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:52,017 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:52,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:52,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:52,238 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2021-10-28 23:40:52,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:52,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378863916] [2021-10-28 23:40:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:52,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:52,259 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:52,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733599594] [2021-10-28 23:40:52,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:52,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:52,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:52,261 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:52,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:40:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:52,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:40:52,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:52,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:52,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378863916] [2021-10-28 23:40:52,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:52,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733599594] [2021-10-28 23:40:52,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733599594] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:52,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:40:52,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:40:52,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531397583] [2021-10-28 23:40:52,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:40:52,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:52,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:40:52,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:40:52,672 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-10-28 23:40:52,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:52,984 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2021-10-28 23:40:52,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:40:52,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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 25 [2021-10-28 23:40:52,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:52,987 INFO L225 Difference]: With dead ends: 123 [2021-10-28 23:40:52,987 INFO L226 Difference]: Without dead ends: 117 [2021-10-28 23:40:52,987 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:40:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-28 23:40:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2021-10-28 23:40:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1951219512195121) internal successors, (98), 87 states have internal predecessors, (98), 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) [2021-10-28 23:40:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2021-10-28 23:40:53,002 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 25 [2021-10-28 23:40:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:53,003 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2021-10-28 23:40:53,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 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) [2021-10-28 23:40:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2021-10-28 23:40:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 23:40:53,005 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:53,005 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:53,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:53,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 23:40:53,219 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:53,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:53,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2021-10-28 23:40:53,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:53,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869404638] [2021-10-28 23:40:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:53,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:53,237 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:53,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [563435518] [2021-10-28 23:40:53,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:53,238 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:53,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:53,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:53,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:40:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:53,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:40:53,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:53,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:53,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869404638] [2021-10-28 23:40:53,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:53,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563435518] [2021-10-28 23:40:53,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563435518] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:53,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:40:53,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:40:53,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750147464] [2021-10-28 23:40:53,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:40:53,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:53,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:40:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:40:53,624 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:53,804 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2021-10-28 23:40:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:40:53,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-28 23:40:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:53,807 INFO L225 Difference]: With dead ends: 140 [2021-10-28 23:40:53,807 INFO L226 Difference]: Without dead ends: 132 [2021-10-28 23:40:53,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:40:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-28 23:40:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 101. [2021-10-28 23:40:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 95 states have (on average 1.1789473684210525) internal successors, (112), 100 states have internal predecessors, (112), 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) [2021-10-28 23:40:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2021-10-28 23:40:53,835 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 26 [2021-10-28 23:40:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:53,835 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2021-10-28 23:40:53,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:40:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2021-10-28 23:40:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 23:40:53,838 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:53,839 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:53,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:54,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:54,052 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:54,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1828677220, now seen corresponding path program 2 times [2021-10-28 23:40:54,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:54,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120501123] [2021-10-28 23:40:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:54,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:54,082 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:54,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1223945501] [2021-10-28 23:40:54,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:40:54,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:54,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:54,084 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:54,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:40:54,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:40:54,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:54,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 23:40:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:54,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:54,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120501123] [2021-10-28 23:40:54,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:54,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223945501] [2021-10-28 23:40:54,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223945501] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:54,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:40:54,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 23:40:54,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140662455] [2021-10-28 23:40:54,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:40:54,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:54,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:40:54,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:40:54,592 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-10-28 23:40:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:55,012 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2021-10-28 23:40:55,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:40:55,013 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-10-28 23:40:55,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:55,022 INFO L225 Difference]: With dead ends: 168 [2021-10-28 23:40:55,022 INFO L226 Difference]: Without dead ends: 162 [2021-10-28 23:40:55,023 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:40:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-28 23:40:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 119. [2021-10-28 23:40:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 113 states have (on average 1.176991150442478) internal successors, (133), 118 states have internal predecessors, (133), 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) [2021-10-28 23:40:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2021-10-28 23:40:55,044 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 34 [2021-10-28 23:40:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:55,046 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2021-10-28 23:40:55,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2021-10-28 23:40:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2021-10-28 23:40:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-28 23:40:55,056 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:55,056 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:55,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:55,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:55,279 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash -797667638, now seen corresponding path program 1 times [2021-10-28 23:40:55,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:55,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591467904] [2021-10-28 23:40:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:55,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:55,301 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:55,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095795459] [2021-10-28 23:40:55,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:55,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:55,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:55,306 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:55,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:40:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:40:55,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:40:55,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:56,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:56,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591467904] [2021-10-28 23:40:56,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:56,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095795459] [2021-10-28 23:40:56,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095795459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:56,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:40:56,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-28 23:40:56,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462786303] [2021-10-28 23:40:56,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:40:56,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:56,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:40:56,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:40:56,053 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-10-28 23:40:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:56,388 INFO L93 Difference]: Finished difference Result 210 states and 234 transitions. [2021-10-28 23:40:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:40:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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 35 [2021-10-28 23:40:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:56,391 INFO L225 Difference]: With dead ends: 210 [2021-10-28 23:40:56,391 INFO L226 Difference]: Without dead ends: 202 [2021-10-28 23:40:56,392 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:40:56,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-28 23:40:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 128. [2021-10-28 23:40:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 127 states have internal predecessors, (143), 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) [2021-10-28 23:40:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 143 transitions. [2021-10-28 23:40:56,410 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 143 transitions. Word has length 35 [2021-10-28 23:40:56,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:56,411 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 143 transitions. [2021-10-28 23:40:56,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-10-28 23:40:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 143 transitions. [2021-10-28 23:40:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-28 23:40:56,412 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:56,412 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:56,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:56,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-28 23:40:56,635 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1158953764, now seen corresponding path program 2 times [2021-10-28 23:40:56,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:56,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666782954] [2021-10-28 23:40:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:56,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:56,669 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:56,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942413004] [2021-10-28 23:40:56,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:40:56,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:56,679 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:56,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:40:56,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:40:56,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:56,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:40:56,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:40:57,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:57,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666782954] [2021-10-28 23:40:57,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:57,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942413004] [2021-10-28 23:40:57,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942413004] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:40:57,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:40:57,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:40:57,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552187511] [2021-10-28 23:40:57,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:40:57,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:57,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:40:57,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:40:57,022 INFO L87 Difference]: Start difference. First operand 128 states and 143 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-28 23:40:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:40:57,108 INFO L93 Difference]: Finished difference Result 241 states and 268 transitions. [2021-10-28 23:40:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:40:57,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-10-28 23:40:57,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:40:57,109 INFO L225 Difference]: With dead ends: 241 [2021-10-28 23:40:57,110 INFO L226 Difference]: Without dead ends: 142 [2021-10-28 23:40:57,110 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:40:57,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-28 23:40:57,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2021-10-28 23:40:57,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 128 states have (on average 1.1640625) internal successors, (149), 133 states have internal predecessors, (149), 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) [2021-10-28 23:40:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2021-10-28 23:40:57,123 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 39 [2021-10-28 23:40:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:40:57,124 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2021-10-28 23:40:57,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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) [2021-10-28 23:40:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2021-10-28 23:40:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-28 23:40:57,125 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:40:57,125 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:40:57,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:57,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-28 23:40:57,349 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:40:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:40:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1020421613, now seen corresponding path program 3 times [2021-10-28 23:40:57,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:40:57,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421740946] [2021-10-28 23:40:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:40:57,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:40:57,372 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:40:57,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330325506] [2021-10-28 23:40:57,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:40:57,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:40:57,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:40:57,381 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:40:57,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:40:57,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 23:40:57,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:40:57,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:40:57,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:40:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 23:40:58,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:40:58,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421740946] [2021-10-28 23:40:58,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:40:58,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330325506] [2021-10-28 23:40:58,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330325506] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:40:58,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:40:58,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:40:58,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325433897] [2021-10-28 23:40:58,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:40:58,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:40:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:40:58,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:40:58,023 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:41:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:06,235 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2021-10-28 23:41:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:41:06,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 43 [2021-10-28 23:41:06,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:06,238 INFO L225 Difference]: With dead ends: 142 [2021-10-28 23:41:06,238 INFO L226 Difference]: Without dead ends: 136 [2021-10-28 23:41:06,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:41:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-28 23:41:06,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 87. [2021-10-28 23:41:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.119047619047619) internal successors, (94), 86 states have internal predecessors, (94), 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) [2021-10-28 23:41:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-10-28 23:41:06,256 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 43 [2021-10-28 23:41:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:06,257 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-10-28 23:41:06,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-10-28 23:41:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-10-28 23:41:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 23:41:06,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:06,258 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:06,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:06,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-28 23:41:06,486 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:06,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:06,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1074581755, now seen corresponding path program 2 times [2021-10-28 23:41:06,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:06,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692237911] [2021-10-28 23:41:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:06,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:06,508 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:06,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599257388] [2021-10-28 23:41:06,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:41:06,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:06,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:06,512 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:06,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:41:06,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:41:06,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:06,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 23:41:06,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:08,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:08,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692237911] [2021-10-28 23:41:08,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:08,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599257388] [2021-10-28 23:41:08,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599257388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:08,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:08,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 23:41:08,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241086276] [2021-10-28 23:41:08,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:41:08,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:08,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:41:08,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:41:08,203 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2021-10-28 23:41:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:09,041 INFO L93 Difference]: Finished difference Result 143 states and 155 transitions. [2021-10-28 23:41:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:41:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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 44 [2021-10-28 23:41:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:09,044 INFO L225 Difference]: With dead ends: 143 [2021-10-28 23:41:09,044 INFO L226 Difference]: Without dead ends: 135 [2021-10-28 23:41:09,045 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=390, Unknown=0, NotChecked=0, Total=552 [2021-10-28 23:41:09,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-28 23:41:09,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 96. [2021-10-28 23:41:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 93 states have (on average 1.118279569892473) internal successors, (104), 95 states have internal predecessors, (104), 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) [2021-10-28 23:41:09,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2021-10-28 23:41:09,065 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 44 [2021-10-28 23:41:09,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:09,066 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2021-10-28 23:41:09,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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) [2021-10-28 23:41:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2021-10-28 23:41:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 23:41:09,067 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:09,067 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:09,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:09,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:09,282 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:09,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:09,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1128629901, now seen corresponding path program 3 times [2021-10-28 23:41:09,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:09,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859287223] [2021-10-28 23:41:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:09,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:09,307 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:09,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999397977] [2021-10-28 23:41:09,313 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:41:09,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:09,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:09,315 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:09,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:41:09,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:41:09,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:09,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:41:09,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:41:09,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:09,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859287223] [2021-10-28 23:41:09,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:09,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999397977] [2021-10-28 23:41:09,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999397977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:41:09,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:41:09,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 23:41:09,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675399368] [2021-10-28 23:41:09,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:41:09,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:09,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:09,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:09,869 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-10-28 23:41:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:10,101 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2021-10-28 23:41:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:41:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 48 [2021-10-28 23:41:10,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:10,102 INFO L225 Difference]: With dead ends: 110 [2021-10-28 23:41:10,103 INFO L226 Difference]: Without dead ends: 96 [2021-10-28 23:41:10,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:41:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-28 23:41:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 78. [2021-10-28 23:41:10,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 75 states have (on average 1.08) internal successors, (81), 77 states have internal predecessors, (81), 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) [2021-10-28 23:41:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2021-10-28 23:41:10,122 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 48 [2021-10-28 23:41:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:10,123 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2021-10-28 23:41:10,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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) [2021-10-28 23:41:10,123 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2021-10-28 23:41:10,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-28 23:41:10,124 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:10,124 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:10,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:10,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-28 23:41:10,343 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:10,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1934789142, now seen corresponding path program 4 times [2021-10-28 23:41:10,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:10,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100157441] [2021-10-28 23:41:10,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:10,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:10,360 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:10,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055266597] [2021-10-28 23:41:10,361 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:41:10,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:10,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:10,363 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:10,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 23:41:10,722 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:41:10,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:10,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-28 23:41:10,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:13,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:13,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100157441] [2021-10-28 23:41:13,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:13,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055266597] [2021-10-28 23:41:13,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055266597] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:13,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:13,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-10-28 23:41:13,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692598368] [2021-10-28 23:41:13,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:41:13,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:13,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:41:13,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:41:13,653 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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) [2021-10-28 23:41:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:15,415 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-10-28 23:41:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 23:41:15,415 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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 53 [2021-10-28 23:41:15,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:15,417 INFO L225 Difference]: With dead ends: 133 [2021-10-28 23:41:15,417 INFO L226 Difference]: Without dead ends: 125 [2021-10-28 23:41:15,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-10-28 23:41:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-28 23:41:15,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 87. [2021-10-28 23:41:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 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) [2021-10-28 23:41:15,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2021-10-28 23:41:15,444 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 53 [2021-10-28 23:41:15,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:15,445 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2021-10-28 23:41:15,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 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) [2021-10-28 23:41:15,445 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2021-10-28 23:41:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-28 23:41:15,446 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:15,447 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:15,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:15,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 23:41:15,670 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash -413997928, now seen corresponding path program 5 times [2021-10-28 23:41:15,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:15,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146959543] [2021-10-28 23:41:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:15,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:15,700 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:15,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574430883] [2021-10-28 23:41:15,701 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:41:15,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:15,702 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:15,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 23:41:16,139 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2021-10-28 23:41:16,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:16,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:41:16,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:16,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:16,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146959543] [2021-10-28 23:41:16,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:16,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574430883] [2021-10-28 23:41:16,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574430883] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:16,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:16,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:41:16,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597827100] [2021-10-28 23:41:16,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:41:16,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:16,388 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-10-28 23:41:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:16,610 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2021-10-28 23:41:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:41:16,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 57 [2021-10-28 23:41:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:16,612 INFO L225 Difference]: With dead ends: 159 [2021-10-28 23:41:16,612 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 23:41:16,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:41:16,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 23:41:16,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2021-10-28 23:41:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 103 states have (on average 1.087378640776699) internal successors, (112), 105 states have internal predecessors, (112), 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) [2021-10-28 23:41:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2021-10-28 23:41:16,643 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 57 [2021-10-28 23:41:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:16,644 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2021-10-28 23:41:16,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-10-28 23:41:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2021-10-28 23:41:16,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 23:41:16,645 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:16,645 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:16,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:16,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-28 23:41:16,870 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:16,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:16,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1860833829, now seen corresponding path program 6 times [2021-10-28 23:41:16,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:16,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359672252] [2021-10-28 23:41:16,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:16,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:16,883 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:16,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [121586814] [2021-10-28 23:41:16,883 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:41:16,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:16,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:16,886 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:16,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:41:17,345 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-10-28 23:41:17,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:17,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:41:17,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-28 23:41:17,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:17,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359672252] [2021-10-28 23:41:17,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:17,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121586814] [2021-10-28 23:41:17,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121586814] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:17,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:17,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-28 23:41:17,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201384314] [2021-10-28 23:41:17,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 23:41:17,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:17,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 23:41:17,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-28 23:41:17,873 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-10-28 23:41:18,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:18,160 INFO L93 Difference]: Finished difference Result 125 states and 133 transitions. [2021-10-28 23:41:18,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:41:18,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 62 [2021-10-28 23:41:18,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:18,162 INFO L225 Difference]: With dead ends: 125 [2021-10-28 23:41:18,162 INFO L226 Difference]: Without dead ends: 110 [2021-10-28 23:41:18,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:41:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-28 23:41:18,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 81. [2021-10-28 23:41:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.05) internal successors, (84), 80 states have internal predecessors, (84), 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) [2021-10-28 23:41:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 84 transitions. [2021-10-28 23:41:18,184 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 84 transitions. Word has length 62 [2021-10-28 23:41:18,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:18,184 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 84 transitions. [2021-10-28 23:41:18,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2021-10-28 23:41:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 84 transitions. [2021-10-28 23:41:18,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 23:41:18,185 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:18,186 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:18,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:18,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 23:41:18,402 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:18,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 300678153, now seen corresponding path program 7 times [2021-10-28 23:41:18,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:18,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897586306] [2021-10-28 23:41:18,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:18,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:18,420 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:18,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218840525] [2021-10-28 23:41:18,438 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 23:41:18,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:18,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:18,440 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:18,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:41:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:41:18,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 23:41:18,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:20,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:20,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897586306] [2021-10-28 23:41:20,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:20,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218840525] [2021-10-28 23:41:20,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218840525] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:20,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:20,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-10-28 23:41:20,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708431543] [2021-10-28 23:41:20,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 23:41:20,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 23:41:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-10-28 23:41:20,737 INFO L87 Difference]: Start difference. First operand 81 states and 84 transitions. Second operand has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-10-28 23:41:21,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:21,473 INFO L93 Difference]: Finished difference Result 158 states and 165 transitions. [2021-10-28 23:41:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 23:41:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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 66 [2021-10-28 23:41:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:21,475 INFO L225 Difference]: With dead ends: 158 [2021-10-28 23:41:21,475 INFO L226 Difference]: Without dead ends: 93 [2021-10-28 23:41:21,476 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2021-10-28 23:41:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-28 23:41:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 90. [2021-10-28 23:41:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.0449438202247192) internal successors, (93), 89 states have internal predecessors, (93), 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) [2021-10-28 23:41:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2021-10-28 23:41:21,506 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 66 [2021-10-28 23:41:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:21,506 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2021-10-28 23:41:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.4) internal successors, (66), 15 states have internal predecessors, (66), 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) [2021-10-28 23:41:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2021-10-28 23:41:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-28 23:41:21,510 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:41:21,511 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:41:21,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:21,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 23:41:21,718 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-10-28 23:41:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:41:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 822588344, now seen corresponding path program 8 times [2021-10-28 23:41:21,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:41:21,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850662485] [2021-10-28 23:41:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:41:21,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:41:21,747 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:41:21,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627526301] [2021-10-28 23:41:21,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:41:21,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:41:21,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:41:21,757 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:41:21,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 23:41:22,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:41:22,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:41:22,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 23:41:22,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:41:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:41:25,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:41:25,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850662485] [2021-10-28 23:41:25,039 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:41:25,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627526301] [2021-10-28 23:41:25,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627526301] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:41:25,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:41:25,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2021-10-28 23:41:25,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718932414] [2021-10-28 23:41:25,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 23:41:25,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:41:25,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 23:41:25,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:41:25,042 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 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) [2021-10-28 23:41:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:41:26,319 INFO L93 Difference]: Finished difference Result 126 states and 131 transitions. [2021-10-28 23:41:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:41:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 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 75 [2021-10-28 23:41:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:41:26,320 INFO L225 Difference]: With dead ends: 126 [2021-10-28 23:41:26,320 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 23:41:26,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=243, Invalid=879, Unknown=0, NotChecked=0, Total=1122 [2021-10-28 23:41:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 23:41:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 23:41:26,322 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) [2021-10-28 23:41:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:41:26,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-10-28 23:41:26,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:41:26,323 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:41:26,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.411764705882353) internal successors, (75), 17 states have internal predecessors, (75), 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) [2021-10-28 23:41:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:41:26,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 23:41:26,326 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,327 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:41:26,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:41:26,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 23:41:26,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 23:41:26,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:26,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:26,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:27,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:28,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 23:41:49,561 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point L12-4(line 12) no Hoare annotation was computed. [2021-10-28 23:41:49,562 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,563 INFO L853 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse23 (* 2 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (<= ULTIMATE.start_main_~y~0 10)) (.cse18 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse21 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (<= 1 ULTIMATE.start_main_~y~0)) (.cse22 (let ((.cse24 (<= 0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~b~0 .cse23) (= ULTIMATE.start_main_~a~0 2) .cse7) (and .cse0 .cse2 .cse24 (= ULTIMATE.start_main_~a~0 1) .cse7 .cse18))))) (let ((.cse17 (or (and .cse0 .cse2 (= ULTIMATE.start_main_~b~0 .cse21) (= ULTIMATE.start_main_~a~0 4) .cse9 .cse7) (and .cse9 .cse22))) (.cse20 (* 8 ULTIMATE.start_main_~y~0))) (let ((.cse4 (< ULTIMATE.start_main_~x~0 .cse20)) (.cse13 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse11 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse16 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~r~0))) (.cse10 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse12 (<= 0 ULTIMATE.start_main_~x~0)) (.cse15 (= (+ ULTIMATE.start_main_~r~0 .cse21) ULTIMATE.start_main_~x~0)) (.cse6 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse14 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse9 .cse22 (= ULTIMATE.start_main_~q~0 1) .cse18) (and .cse17 (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse23)) (<= .cse23 ULTIMATE.start_main_~x~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse5 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0))) (or (let ((.cse1 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse1)) .cse2 (<= .cse1 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~q~0 6) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8)) (and .cse0 .cse2 (<= 0 ULTIMATE.start_main_~r~0) .cse9 .cse3 .cse5 .cse6 (= ULTIMATE.start_main_~q~0 10) .cse7 .cse8 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse9 .cse10 .cse11 .cse3 .cse6 .cse7 .cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse13 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse14) (and .cse0 .cse2 .cse15 .cse16 .cse9 .cse10 .cse3 .cse4 .cse6 .cse7 .cse12 .cse8) (and .cse17 .cse13 .cse11 .cse3 .cse12 .cse18) (and .cse0 .cse2 (= ULTIMATE.start_main_~q~0 8) .cse16 .cse9 .cse10 .cse3 .cse6 .cse7 .cse12 .cse8) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse19 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse19) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse19 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse19 (- 2)) 0) .cse6 .cse7 .cse8 (<= .cse20 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse20) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse21 ULTIMATE.start_main_~x~0) .cse2 .cse15 .cse3 .cse6 .cse7 .cse8) (and .cse14 .cse3 .cse8)) .cse5)))))) [2021-10-28 23:41:49,563 INFO L857 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2021-10-28 23:41:49,563 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,563 INFO L853 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse23 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))) (.cse20 (* 2 ULTIMATE.start_main_~y~0))) (let ((.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse22 (<= .cse20 ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse23))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse13 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0))) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse19 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse16 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse21 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse17 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse13 (let ((.cse15 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond))) (or (let ((.cse14 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse14) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse14 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse15 .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse7 (= (mod .cse14 (- 2)) 0) .cse17 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 .cse15 .cse19 .cse2 .cse7) (and (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse15 .cse2 (= ULTIMATE.start_main_~q~0 1)) (and .cse0 .cse15 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0))) .cse7)) .cse16 .cse17)))) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse21 .cse22 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse22 (= ULTIMATE.start_main_~y~0 .cse23) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse13 .cse1 .cse2 .cse16 .cse6 .cse7 .cse9 .cse10 .cse17) (and .cse0 .cse1 .cse3 .cse16 .cse6 .cse7 .cse9 .cse10 .cse12 .cse17) (and .cse0 .cse1 .cse2 .cse3 .cse16 .cse5 .cse6 .cse7 .cse9 .cse17) (and .cse0 .cse19 .cse1 .cse2 .cse3 .cse16 .cse6 .cse7 .cse21 .cse9 .cse17)))) [2021-10-28 23:41:49,563 INFO L857 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2021-10-28 23:41:49,563 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,564 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,564 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse18 (* 8 ULTIMATE.start_main_~y~0)) (.cse19 (* 4 ULTIMATE.start_main_~y~0)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse12 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse6 (<= ULTIMATE.start_main_~y~0 10))) (let ((.cse8 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse16 (or (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2 .cse9 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse12) (let ((.cse21 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse21)) .cse2 (<= .cse21 ULTIMATE.start_main_~x~0) .cse6)))) (.cse4 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse20 (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse13 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0)) (.cse10 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse3 (<= ULTIMATE.start_main_~x~0 10)) (.cse15 (< ULTIMATE.start_main_~x~0 .cse18)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse11 (<= 0 ULTIMATE.start_main_~x~0)) (.cse7 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (<= 0 ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_main_~q~0 10) .cse6 .cse7 (exists ((aux_div_ULTIMATE.start_main_~b~0_36 Int)) (and (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* aux_div_ULTIMATE.start_main_~b~0_36 2) (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) (<= (+ ULTIMATE.start_main_~y~0 aux_div_ULTIMATE.start_main_~b~0_36) 0)))) (and .cse0 .cse8 .cse1 .cse2 .cse9 .cse10 .cse3 .cse6 .cse11 .cse12) (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 .cse7) (let ((.cse14 (* 6 ULTIMATE.start_main_~y~0))) (and .cse0 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse14)) (<= .cse14 ULTIMATE.start_main_~x~0) .cse1 (= ULTIMATE.start_main_~q~0 6) .cse2 .cse3 .cse15 .cse4 .cse5 .cse6 .cse7)) (and .cse8 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse16) (and .cse0 .cse1 .cse2 .cse13 .cse10 .cse3 .cse5 .cse6 .cse11 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1)) (or (let ((.cse17 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse17) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse17 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse1 .cse2 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse3 (= (mod .cse17 (- 2)) 0) .cse5 .cse6 .cse7 (<= .cse18 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse18) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse19 ULTIMATE.start_main_~x~0) .cse20 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7) (and .cse1 .cse3 .cse5 .cse7 .cse16)) .cse4) (and .cse0 .cse20 .cse1 .cse2 .cse13 .cse10 .cse3 .cse15 .cse5 .cse6 .cse11 .cse7)))) [2021-10-28 23:41:49,564 INFO L857 garLoopResultBuilder]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,564 INFO L853 garLoopResultBuilder]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse15 (* 4 ULTIMATE.start_main_~y~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse16 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse10 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (<= ULTIMATE.start_main_~y~0 10)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse9 (< ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) (.cse12 (or (let ((.cse20 (* 2 ULTIMATE.start_main_~y~0))) (and (< (* 2 ULTIMATE.start_main_~r~0) ULTIMATE.start_main_~x~0) .cse0 .cse16 (= ULTIMATE.start_main_~q~0 2) (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 .cse20)) (<= .cse20 ULTIMATE.start_main_~x~0) .cse6)) (and (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~y~0)) .cse0 .cse16 .cse2 .cse10 (= ULTIMATE.start_main_~q~0 1) .cse6 .cse11))) (.cse13 (< (div (+ (- 1) (* ULTIMATE.start_main_~r~0 (- 1))) (- 2)) (+ ULTIMATE.start_main_~y~0 1))) (.cse14 (<= (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) (.cse17 (= (+ ULTIMATE.start_main_~r~0 .cse15) ULTIMATE.start_main_~x~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse19 (* 8 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2)))))) (.cse7 (<= 0 ULTIMATE.start_main_~x~0)) (.cse8 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~q~0 8) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse10 .cse3 .cse4 .cse6 .cse7 .cse11) (and .cse9 (<= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) .cse12) (and .cse13 .cse14 (or (and (= ULTIMATE.start_main_~q~0 4) .cse0 (<= .cse15 ULTIMATE.start_main_~x~0) .cse16 .cse17 .cse4 .cse5 .cse8) (and .cse4 .cse5 .cse12 .cse8) (let ((.cse18 (div ULTIMATE.start_main_~q~0 2))) (and .cse0 (= (mod (div (- .cse18) (- 2)) (- 2)) 0) (= ULTIMATE.start_main_~y~0 (* (div (* (div (* .cse18 (- 1)) (- 2)) (- 1)) (- 2)) ULTIMATE.start_main_~y~0)) .cse16 (= (mod ULTIMATE.start_main_~q~0 2) 0) .cse4 (= (mod .cse18 (- 2)) 0) .cse5 .cse8 (<= .cse19 ULTIMATE.start_main_~x~0) (= (+ ULTIMATE.start_main_~r~0 .cse19) ULTIMATE.start_main_~x~0))))) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse14 .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~q~0) .cse3 .cse4 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (and .cse0 .cse17 .cse1 .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 .cse19) .cse5 .cse6 .cse7 .cse8)))) [2021-10-28 23:41:49,564 INFO L857 garLoopResultBuilder]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,565 INFO L853 garLoopResultBuilder]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse18 (= ULTIMATE.start_main_~a~0 1)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~b~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~y~0))) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse16) (and .cse0 .cse13 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse1 .cse2 .cse18 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse8 .cse12 .cse11) (and .cse0 .cse1 .cse3 .cse18 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse16)))) [2021-10-28 23:41:49,565 INFO L857 garLoopResultBuilder]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,565 INFO L853 garLoopResultBuilder]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse19 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse8 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse12 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= 0 ULTIMATE.start_main_~r~0)) (.cse16 (= ULTIMATE.start_main_~a~0 2)) (.cse18 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse13 (= ULTIMATE.start_main_~b~0 (* 2 .cse19))) (.cse15 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 1 ULTIMATE.start_main_~y~0)) (.cse5 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse14 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse11 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse12 .cse1 .cse2 .cse3 .cse4 .cse16 .cse6 .cse7 .cse8 .cse17 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse12 .cse2 (= ULTIMATE.start_main_~a~0 4) .cse3 .cse4 .cse6 .cse7 .cse13 .cse9 .cse10 .cse14 .cse15) (and .cse0 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse18 .cse6 .cse7 .cse9 .cse10 .cse11) (and .cse0 .cse12 .cse2 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse3 .cse4 .cse16 .cse18 .cse6 .cse7 .cse13 .cse9 .cse10 .cse15) (and .cse0 .cse2 .cse4 (= ULTIMATE.start_main_~q~0 0) .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse19) .cse13 .cse14 .cse15) (and .cse0 .cse2 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse14 .cse11)))) [2021-10-28 23:41:49,565 INFO L857 garLoopResultBuilder]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,565 INFO L853 garLoopResultBuilder]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse18 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) (let ((.cse12 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0)) (.cse13 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0)) (.cse4 (= ULTIMATE.start_main_~a~0 2)) (.cse15 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0))) (.cse17 (<= (* 2 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~r~0)) (.cse8 (= ULTIMATE.start_main_~b~0 (* 2 .cse18))) (.cse11 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse1 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~r~0)) (.cse3 (<= 1 ULTIMATE.start_main_~y~0)) (.cse14 (= ULTIMATE.start_main_~a~0 1)) (.cse5 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2))) (.cse6 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse7 (<= ULTIMATE.start_main_~x~0 10)) (.cse9 (<= ULTIMATE.start_main_~y~0 10)) (.cse10 (<= 0 ULTIMATE.start_main_~x~0)) (.cse16 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (or (and .cse0 .cse1 (<= (* 2 (div (* ULTIMATE.start_main_~b~0 (- 1)) (- 2))) ULTIMATE.start_main_~r~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse14 .cse6 .cse7 .cse15 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse3 .cse6 .cse7 .cse17 (= ULTIMATE.start_main_~y~0 .cse18) .cse8 .cse12 .cse11) (and .cse0 .cse1 (< ULTIMATE.start_main_~r~0 (* 2 ULTIMATE.start_main_~b~0)) .cse2 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse16) (and .cse0 .cse1 .cse2 .cse3 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse11 (= ULTIMATE.start_main_~a~0 8)) (and .cse0 .cse1 .cse3 .cse14 .cse6 .cse7 .cse9 .cse10 .cse12 .cse16) (and .cse0 .cse1 .cse13 .cse2 .cse3 .cse4 .cse6 .cse7 .cse15 .cse17 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse14 .cse5 .cse6 .cse7 .cse9 .cse10 .cse16)))) [2021-10-28 23:41:49,566 INFO L860 garLoopResultBuilder]: At program point L65(lines 22 66) the Hoare annotation is: true [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L853 garLoopResultBuilder]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse9 (= ULTIMATE.start_main_~a~0 1)) (.cse6 (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0))) (let ((.cse1 (<= (* 2 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~r~0)) (.cse0 (let ((.cse11 (<= 0 ULTIMATE.start_main_~r~0)) (.cse12 (<= ULTIMATE.start_main_~y~0 10))) (or (and .cse7 .cse8 .cse11 (= ULTIMATE.start_main_~b~0 (* 2 (* ULTIMATE.start_main_~y~0 (div (* ULTIMATE.start_main_~a~0 (- 1)) (- 2))))) .cse12 (= (mod ULTIMATE.start_main_~a~0 (- 2)) 0)) (and .cse7 .cse8 .cse11 .cse9 .cse12 .cse6)))) (.cse2 (<= 1 ULTIMATE.start_main_~y~0)) (.cse3 (= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~r~0 (* ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~y~0)))) (.cse4 (<= ULTIMATE.start_main_~x~0 10)) (.cse5 (<= 0 ULTIMATE.start_main_~x~0)) (.cse10 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 (= (+ ULTIMATE.start_main_~r~0 (* 4 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~x~0) .cse2 .cse3 .cse4 (< ULTIMATE.start_main_~x~0 (* 8 ULTIMATE.start_main_~y~0)) .cse5 .cse6) (and .cse7 .cse1 .cse8 .cse2 (= ULTIMATE.start_main_~q~0 0) .cse9 .cse4 .cse10 .cse6) (and .cse0 (= ULTIMATE.start_main_~a~0 4) .cse2 .cse3 .cse4 .cse5 .cse10) (and .cse0 .cse1 .cse2 .cse9 (<= ULTIMATE.start_main_~y~0 (div (div (div (+ ULTIMATE.start_main_~x~0 (* ULTIMATE.start_main_~r~0 (- 1))) 2) 2) 2)) .cse3 .cse4 .cse5) (and .cse0 .cse2 (= ULTIMATE.start_main_~a~0 2) .cse3 .cse4 .cse5 .cse10)))) [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L860 garLoopResultBuilder]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,566 INFO L857 garLoopResultBuilder]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,567 INFO L857 garLoopResultBuilder]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,567 INFO L857 garLoopResultBuilder]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,567 INFO L857 garLoopResultBuilder]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2021-10-28 23:41:49,567 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 23:41:49,567 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-28 23:41:49,570 INFO L731 BasicCegarLoop]: Path program histogram: [8, 3, 2, 1, 1, 1, 1, 1] [2021-10-28 23:41:49,572 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:41:49,662 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,666 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,669 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,670 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,690 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,691 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:41:49 BoogieIcfgContainer [2021-10-28 23:41:49,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:41:49,696 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:41:49,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:41:49,697 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:41:49,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:40:47" (3/4) ... [2021-10-28 23:41:49,701 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:41:49,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-28 23:41:49,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:41:49,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:41:49,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:41:49,753 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) [2021-10-28 23:41:49,754 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) [2021-10-28 23:41:49,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:41:49,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:41:49,797 INFO L168 Benchmark]: Toolchain (without parser) took 62920.32 ms. Allocated memory was 98.6 MB in the beginning and 197.1 MB in the end (delta: 98.6 MB). Free memory was 75.9 MB in the beginning and 93.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,797 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:41:49,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.63 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 73.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.44 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 71.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,799 INFO L168 Benchmark]: Boogie Preprocessor took 60.44 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 70.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,800 INFO L168 Benchmark]: RCFGBuilder took 444.78 ms. Allocated memory is still 98.6 MB. Free memory was 70.0 MB in the beginning and 59.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,800 INFO L168 Benchmark]: TraceAbstraction took 61829.89 ms. Allocated memory was 98.6 MB in the beginning and 197.1 MB in the end (delta: 98.6 MB). Free memory was 58.5 MB in the beginning and 98.3 MB in the end (delta: -39.8 MB). Peak memory consumption was 117.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,801 INFO L168 Benchmark]: Witness Printer took 98.85 ms. Allocated memory is still 197.1 MB. Free memory was 98.3 MB in the beginning and 93.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:41:49,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.63 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 73.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.44 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 71.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.44 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 70.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 444.78 ms. Allocated memory is still 98.6 MB. Free memory was 70.0 MB in the beginning and 59.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 61829.89 ms. Allocated memory was 98.6 MB in the beginning and 197.1 MB in the end (delta: 98.6 MB). Free memory was 58.5 MB in the beginning and 98.3 MB in the end (delta: -39.8 MB). Peak memory consumption was 117.4 MB. Max. memory is 16.1 GB. * Witness Printer took 98.85 ms. Allocated memory is still 197.1 MB. Free memory was 98.3 MB in the beginning and 93.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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, 43 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 61.5s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 507 SDtfs, 1538 SDslu, 1264 SDs, 0 SdLazy, 2982 SolverSat, 500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 754 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=10, InterpolantAutomatonStates: 191, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 405 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 78 NumberOfFragments, 4255 HoareAnnotationTreeSize, 10 FomulaSimplifications, 869621 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 10 FomulaSimplificationsInter, 205960 FormulaSimplificationTreeSizeReductionInter, 21.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 678 NumberOfCodeBlocks, 604 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 660 ConstructedInterpolants, 3 QuantifiedInterpolants, 8081 SizeOfPredicates, 128 NumberOfNonLiveVariables, 2211 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 207/563 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 7 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || ((((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && r + 4 * y == x) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && 0 <= x) && b == y) || ((((((((cond == 1 && 2 * b <= r) && 1 == cond) && 1 <= y) && q == 0) && a == 1) && x <= 10) && r == x) && b == y)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && a == 4) && 1 <= y) && x == r + q * y) && x <= 10) && 0 <= x) && r == x)) || (((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 2 * b <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && 0 <= x)) || ((((((((((((cond == 1 && 1 == cond) && 0 <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || (((((cond == 1 && 1 == cond) && 0 <= r) && a == 1) && y <= 10) && b == y)) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && 0 <= x) && r == x) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 <= cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 <= cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && r < 2 * b) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && 1 <= cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y)) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && q == 0) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && b == a * y) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((r < y && b <= y) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y)))) || (((-1 + r * -1) / -2 < y + 1 && b * -1 / -2 <= y) && (((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) || (((x <= 10 && b == 2 * (y * (a * -1 / -2))) && (((((((2 * r < x && cond == 1) && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x) && y <= 10) || (((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y))) && a % -2 == 0)) || ((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x)))) || ((((((((((cond == 1 && (-1 + r * -1) / -2 < y + 1) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((((((((((cond == 1 && 1 == cond) && 2 * (b * -1 / -2) <= r) && 0 <= r) && 1 <= y) && a == 2) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) || (((((((((((cond == 1 && 1 == cond) && a == 4) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0)) || (r < 2 * b && (((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && a == 1) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == y) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 1 <= cond) && r + 4 * y == x) && 0 <= r) && x <= 10) || ((((((x == r + y && cond == 1) && 1 <= cond) && 0 <= r) && q == 1) || ((((cond == 1 && 1 <= cond) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10)) && a == 1) && b == y)))) || (((((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 2) && x == r + q * y) && x <= 10) && x < 8 * y) && 2 * y <= r) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && x == r + q * y) && x <= 10) && 2 * y <= r) && y == y * (a * -1 / -2)) && b == 2 * (y * (a * -1 / -2))) && r == x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x) && a % -2 == 0) && a == 8)) || (((((((((cond == 1 && r < 2 * b) && 1 == cond) && 0 <= r) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && r == x) && b == y)) || (((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && y <= (x + r * -1) / 2 / 2 / 2) && x == r + q * y) && x <= 10) && y <= 10) && b == y)) || ((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 0 <= r) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && x < 8 * y) && y <= 10) && b == y) - InvariantResult [Line: 38]: Loop Invariant [2021-10-28 23:41:49,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && x == r + 6 * y) && 1 <= cond) && 6 * y <= x) && q == 6) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) || ((((((((((cond == 1 && 1 <= cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0))) || ((((((((cond == 1 && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || ((r < y && b <= y) && (((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)))) || (((((((((((cond == 1 && 1 <= cond) && r + 4 * y == x) && x == b + r) && 1 <= y) && a == q) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && r < y) && x == r + q * y) && x <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 <= cond) && q == 8) && x == b + r) && 1 <= y) && a == q) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((-1 + r * -1) / -2 < y + 1 && (((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 <= cond) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || ((((((((q == 4 && cond == 1) && 4 * y <= x) && 1 <= cond) && r + 4 * y == x) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || (((((((x == r + y && 1 <= y) && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y))) && q == 1) && b == y) || ((((((((((cond == 1 && 1 <= cond) && b == 4 * y) && a == 4) && 1 <= y) && y <= 10) || (1 <= y && ((((((cond == 1 && 1 <= cond) && 0 <= y) && b == 2 * y) && a == 2) && y <= 10) || (((((cond == 1 && 1 <= cond) && 0 <= y) && a == 1) && y <= 10) && b == y)))) && 2 * r < x) && q == 2) && x == r + 2 * y) && 2 * y <= x)) && x <= 10) && a % -2 == 0))) && b * -1 / -2 <= y) - InvariantResult [Line: 14]: Loop Invariant [2021-10-28 23:41:49,842 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,842 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] [2021-10-28 23:41:49,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_ULTIMATE.start_main_~b~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((((((cond == 1 && 1 == cond) && 0 <= r) && 1 <= y) && x <= 10) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && q == 10) && y <= 10) && a % -2 == 0) && (\exists aux_div_ULTIMATE.start_main_~b~0_36 : int :: y <= (x + aux_div_ULTIMATE.start_main_~b~0_36 * 2 + r * -1) / 2 / 2 / 2 && y + aux_div_ULTIMATE.start_main_~b~0_36 <= 0)) || (((((((((cond == 1 && r < y) && 1 == cond) && 1 <= y) && a == 1) && x == r + q * y) && x <= 10) && y <= 10) && 0 <= x) && b == y)) || ((((((((((cond == 1 && 1 == cond) && q == 8) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0)) || (((((((((((cond == 1 && x == r + 6 * y) && 6 * y <= x) && 1 == cond) && q == 6) && 1 <= y) && x <= 10) && x < 8 * y) && b * -1 / -2 <= y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((r < y && b <= y) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10)))) || (((((((((cond == 1 && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && r == x)) || (((-1 + r * -1) / -2 < y + 1 && ((((((((((((((cond == 1 && -(q / 2) / -2 % -2 == 0) && y == q / 2 * -1 / -2 * -1 / -2 * y) && 1 == cond) && 1 <= y) && q % 2 == 0) && x <= 10) && q / 2 % -2 == 0) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0) && 8 * y <= x) && r + 8 * y == x) || (((((((((q == 4 && cond == 1) && 4 * y <= x) && r + 4 * y == x) && 1 == cond) && 1 <= y) && x <= 10) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && a % -2 == 0)) || ((((1 == cond && x <= 10) && b == 2 * (y * (a * -1 / -2))) && a % -2 == 0) && ((((((((x == r + y && cond == 1) && 1 <= cond) && 1 <= y) && a == 1) && q == 1) && y <= 10) && b == y) || ((((((2 * r < x && cond == 1) && q == 2) && x == r + 2 * y) && 1 <= y) && 2 * y <= x) && y <= 10))))) && b * -1 / -2 <= y)) || (((((((((((cond == 1 && r + 4 * y == x) && 1 == cond) && 1 <= y) && a == q) && x == r + q * y) && x <= 10) && x < 8 * y) && b == 2 * (y * (a * -1 / -2))) && y <= 10) && 0 <= x) && a % -2 == 0) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-28 23:41:49,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_442a4aba-a739-4aba-bf6f-1b93154b6d0c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...