./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa --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 f869ff34b8d1fc9233da1bce651f8bc007d942cb0a36d4a975409aebb2d888b1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:22:55,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:22:55,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:22:55,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:22:55,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:22:55,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:22:55,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:22:55,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:22:55,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:22:55,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:22:55,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:22:55,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:22:55,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:22:55,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:22:55,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:22:55,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:22:55,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:22:55,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:22:55,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:22:55,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:22:55,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:22:55,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:22:55,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:22:55,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:22:55,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:22:55,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:22:55,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:22:55,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:22:55,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:22:55,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:22:55,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:22:55,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:22:55,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:22:55,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:22:55,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:22:55,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:22:55,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:22:55,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:22:55,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:22:55,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:22:55,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:22:55,445 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:22:55,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:22:55,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:22:55,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:22:55,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:22:55,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:22:55,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:22:55,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:22:55,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:22:55,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:22:55,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:22:55,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:22:55,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:22:55,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:22:55,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:22:55,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:22:55,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:22:55,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:22:55,477 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_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f869ff34b8d1fc9233da1bce651f8bc007d942cb0a36d4a975409aebb2d888b1 [2021-12-06 18:22:55,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:22:55,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:22:55,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:22:55,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:22:55,656 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:22:55,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2021-12-06 18:22:55,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/data/b8bef96d6/54b306513be549b7b5581efe2f873f91/FLAGaafc3a9af [2021-12-06 18:22:56,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:22:56,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/sv-benchmarks/c/eca-rers2012/Problem11_label23.c [2021-12-06 18:22:56,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/data/b8bef96d6/54b306513be549b7b5581efe2f873f91/FLAGaafc3a9af [2021-12-06 18:22:56,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/data/b8bef96d6/54b306513be549b7b5581efe2f873f91 [2021-12-06 18:22:56,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:22:56,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:22:56,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:22:56,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:22:56,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:22:56,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:22:56" (1/1) ... [2021-12-06 18:22:56,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2e2b69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:56, skipping insertion in model container [2021-12-06 18:22:56,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:22:56" (1/1) ... [2021-12-06 18:22:56,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:22:56,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:22:56,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/sv-benchmarks/c/eca-rers2012/Problem11_label23.c[9364,9377] [2021-12-06 18:22:57,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:22:57,109 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:22:57,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/sv-benchmarks/c/eca-rers2012/Problem11_label23.c[9364,9377] [2021-12-06 18:22:57,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:22:57,269 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:22:57,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57 WrapperNode [2021-12-06 18:22:57,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:22:57,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:22:57,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:22:57,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:22:57,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,390 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-06 18:22:57,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:22:57,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:22:57,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:22:57,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:22:57,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:22:57,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:22:57,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:22:57,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:22:57,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (1/1) ... [2021-12-06 18:22:57,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:22:57,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:22:57,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:22:57,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:22:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:22:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:22:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:22:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:22:57,595 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:22:57,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:22:58,585 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:22:58,594 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:22:58,594 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 18:22:58,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:58 BoogieIcfgContainer [2021-12-06 18:22:58,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:22:58,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:22:58,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:22:58,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:22:58,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:22:56" (1/3) ... [2021-12-06 18:22:58,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62244d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:22:58, skipping insertion in model container [2021-12-06 18:22:58,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:22:57" (2/3) ... [2021-12-06 18:22:58,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62244d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:22:58, skipping insertion in model container [2021-12-06 18:22:58,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:58" (3/3) ... [2021-12-06 18:22:58,601 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label23.c [2021-12-06 18:22:58,605 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:22:58,605 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:22:58,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:22:58,646 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 [2021-12-06 18:22:58,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:22:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-12-06 18:22:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-06 18:22:58,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:22:58,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:22:58,669 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:22:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2021-12-06 18:22:58,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:58,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604650167] [2021-12-06 18:22:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:58,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:58,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:22:58,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:22:58,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604650167] [2021-12-06 18:22:58,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604650167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:22:58,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:22:58,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:22:58,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842706131] [2021-12-06 18:22:58,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:22:58,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:22:58,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:22:58,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:22:58,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:22:58,927 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2021-12-06 18:22:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:22:59,678 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-12-06 18:22:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:22:59,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 65 [2021-12-06 18:22:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:22:59,695 INFO L225 Difference]: With dead ends: 769 [2021-12-06 18:22:59,695 INFO L226 Difference]: Without dead ends: 422 [2021-12-06 18:22:59,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:22:59,703 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 175 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:22:59,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 163 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:22:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-12-06 18:22:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-12-06 18:22:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 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) [2021-12-06 18:22:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-12-06 18:22:59,752 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 65 [2021-12-06 18:22:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:22:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-12-06 18:22:59,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2021-12-06 18:22:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-12-06 18:22:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-06 18:22:59,757 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:22:59,757 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:22:59,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:22:59,758 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:22:59,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:22:59,758 INFO L85 PathProgramCache]: Analyzing trace with hash -566112933, now seen corresponding path program 1 times [2021-12-06 18:22:59,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:22:59,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137139699] [2021-12-06 18:22:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:22:59,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:22:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:22:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:22:59,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:22:59,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137139699] [2021-12-06 18:22:59,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137139699] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:22:59,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:22:59,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:22:59,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002295441] [2021-12-06 18:22:59,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:22:59,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:22:59,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:22:59,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:22:59,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:22:59,852 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2021-12-06 18:23:00,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:00,348 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-12-06 18:23:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:00,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2021-12-06 18:23:00,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:00,353 INFO L225 Difference]: With dead ends: 1194 [2021-12-06 18:23:00,353 INFO L226 Difference]: Without dead ends: 784 [2021-12-06 18:23:00,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:00,355 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:00,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 154 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:00,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-12-06 18:23:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-12-06 18:23:00,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 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) [2021-12-06 18:23:00,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-12-06 18:23:00,389 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 131 [2021-12-06 18:23:00,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:00,389 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-12-06 18:23:00,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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) [2021-12-06 18:23:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-12-06 18:23:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-06 18:23:00,392 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:00,392 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:00,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:23:00,392 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:00,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1935044965, now seen corresponding path program 1 times [2021-12-06 18:23:00,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:00,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96812564] [2021-12-06 18:23:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:00,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:00,486 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:00,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96812564] [2021-12-06 18:23:00,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96812564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:00,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:00,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:23:00,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798999421] [2021-12-06 18:23:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:00,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:00,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:00,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:00,489 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2021-12-06 18:23:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:01,014 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-12-06 18:23:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:01,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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 135 [2021-12-06 18:23:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:01,020 INFO L225 Difference]: With dead ends: 1936 [2021-12-06 18:23:01,020 INFO L226 Difference]: Without dead ends: 1154 [2021-12-06 18:23:01,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:01,022 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:01,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-12-06 18:23:01,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-12-06 18:23:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 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) [2021-12-06 18:23:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-12-06 18:23:01,043 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 135 [2021-12-06 18:23:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:01,044 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-12-06 18:23:01,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 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) [2021-12-06 18:23:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-12-06 18:23:01,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-06 18:23:01,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:01,046 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:01,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:23:01,046 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash -444441444, now seen corresponding path program 1 times [2021-12-06 18:23:01,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:01,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243253642] [2021-12-06 18:23:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:01,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:01,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:01,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243253642] [2021-12-06 18:23:01,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243253642] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:01,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:01,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:01,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737416977] [2021-12-06 18:23:01,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:01,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:01,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:01,140 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-12-06 18:23:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:01,693 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2021-12-06 18:23:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 177 [2021-12-06 18:23:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:01,701 INFO L225 Difference]: With dead ends: 2679 [2021-12-06 18:23:01,701 INFO L226 Difference]: Without dead ends: 1712 [2021-12-06 18:23:01,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:01,705 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 141 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:01,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 332 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:01,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-12-06 18:23:01,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2021-12-06 18:23:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 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) [2021-12-06 18:23:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2021-12-06 18:23:01,733 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 177 [2021-12-06 18:23:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:01,733 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2021-12-06 18:23:01,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-12-06 18:23:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2021-12-06 18:23:01,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-12-06 18:23:01,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:01,737 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:01,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:23:01,737 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:01,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 522290920, now seen corresponding path program 1 times [2021-12-06 18:23:01,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:01,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120116796] [2021-12-06 18:23:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:01,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 18:23:01,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:01,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120116796] [2021-12-06 18:23:01,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120116796] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:01,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:01,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:01,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725547227] [2021-12-06 18:23:01,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:01,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:01,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:01,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:01,860 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-12-06 18:23:02,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:02,474 INFO L93 Difference]: Finished difference Result 3597 states and 4559 transitions. [2021-12-06 18:23:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:02,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 247 [2021-12-06 18:23:02,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:02,484 INFO L225 Difference]: With dead ends: 3597 [2021-12-06 18:23:02,484 INFO L226 Difference]: Without dead ends: 2078 [2021-12-06 18:23:02,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:02,487 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 132 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:02,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 391 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:23:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-12-06 18:23:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1889. [2021-12-06 18:23:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.2473516949152543) internal successors, (2355), 1888 states have internal predecessors, (2355), 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) [2021-12-06 18:23:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2355 transitions. [2021-12-06 18:23:02,533 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2355 transitions. Word has length 247 [2021-12-06 18:23:02,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:02,534 INFO L470 AbstractCegarLoop]: Abstraction has 1889 states and 2355 transitions. [2021-12-06 18:23:02,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-12-06 18:23:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2355 transitions. [2021-12-06 18:23:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-12-06 18:23:02,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:02,540 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2021-12-06 18:23:02,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:23:02,540 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:02,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:02,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1609653245, now seen corresponding path program 1 times [2021-12-06 18:23:02,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:02,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474525559] [2021-12-06 18:23:02,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:02,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:02,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474525559] [2021-12-06 18:23:02,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474525559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:02,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:02,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:02,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203889629] [2021-12-06 18:23:02,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:02,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:02,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:02,669 INFO L87 Difference]: Start difference. First operand 1889 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-12-06 18:23:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:03,252 INFO L93 Difference]: Finished difference Result 5075 states and 6326 transitions. [2021-12-06 18:23:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 274 [2021-12-06 18:23:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:03,264 INFO L225 Difference]: With dead ends: 5075 [2021-12-06 18:23:03,264 INFO L226 Difference]: Without dead ends: 3188 [2021-12-06 18:23:03,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:03,267 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 123 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:03,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 140 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-12-06 18:23:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2021-12-06 18:23:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2160125588697017) internal successors, (3873), 3185 states have internal predecessors, (3873), 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) [2021-12-06 18:23:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3873 transitions. [2021-12-06 18:23:03,315 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3873 transitions. Word has length 274 [2021-12-06 18:23:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:03,315 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3873 transitions. [2021-12-06 18:23:03,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2021-12-06 18:23:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3873 transitions. [2021-12-06 18:23:03,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-12-06 18:23:03,320 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:03,320 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:03,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:23:03,320 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:03,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash 328502846, now seen corresponding path program 1 times [2021-12-06 18:23:03,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:03,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476106062] [2021-12-06 18:23:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:03,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:03,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:03,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476106062] [2021-12-06 18:23:03,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476106062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:03,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:03,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:03,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132216536] [2021-12-06 18:23:03,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:03,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:23:03,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:23:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:23:03,449 INFO L87 Difference]: Start difference. First operand 3186 states and 3873 transitions. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-12-06 18:23:04,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:04,343 INFO L93 Difference]: Finished difference Result 10433 states and 12706 transitions. [2021-12-06 18:23:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:23:04,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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 280 [2021-12-06 18:23:04,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:04,370 INFO L225 Difference]: With dead ends: 10433 [2021-12-06 18:23:04,371 INFO L226 Difference]: Without dead ends: 7249 [2021-12-06 18:23:04,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:23:04,375 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 214 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:04,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 151 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:23:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7249 states. [2021-12-06 18:23:04,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7249 to 7242. [2021-12-06 18:23:04,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 7241 states have (on average 1.1959674078165998) internal successors, (8660), 7241 states have internal predecessors, (8660), 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) [2021-12-06 18:23:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 8660 transitions. [2021-12-06 18:23:04,491 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 8660 transitions. Word has length 280 [2021-12-06 18:23:04,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:04,492 INFO L470 AbstractCegarLoop]: Abstraction has 7242 states and 8660 transitions. [2021-12-06 18:23:04,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-12-06 18:23:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 8660 transitions. [2021-12-06 18:23:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-12-06 18:23:04,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:04,495 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:04,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:23:04,496 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1580395159, now seen corresponding path program 1 times [2021-12-06 18:23:04,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:04,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944011193] [2021-12-06 18:23:04,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:04,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 157 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:04,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944011193] [2021-12-06 18:23:04,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944011193] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:04,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355493068] [2021-12-06 18:23:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:04,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:04,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:04,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:04,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:23:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:04,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:23:04,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-06 18:23:05,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:05,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355493068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:05,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:05,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-06 18:23:05,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085003844] [2021-12-06 18:23:05,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:05,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:23:05,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:23:05,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:23:05,215 INFO L87 Difference]: Start difference. First operand 7242 states and 8660 transitions. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-12-06 18:23:05,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:05,944 INFO L93 Difference]: Finished difference Result 19470 states and 23084 transitions. [2021-12-06 18:23:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:23:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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 283 [2021-12-06 18:23:05,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:05,990 INFO L225 Difference]: With dead ends: 19470 [2021-12-06 18:23:05,990 INFO L226 Difference]: Without dead ends: 12598 [2021-12-06 18:23:05,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:23:05,995 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 258 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:05,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 178 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:23:06,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12598 states. [2021-12-06 18:23:06,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12598 to 10010. [2021-12-06 18:23:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 10009 states have (on average 1.1815366170446597) internal successors, (11826), 10009 states have internal predecessors, (11826), 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) [2021-12-06 18:23:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 11826 transitions. [2021-12-06 18:23:06,132 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 11826 transitions. Word has length 283 [2021-12-06 18:23:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:06,132 INFO L470 AbstractCegarLoop]: Abstraction has 10010 states and 11826 transitions. [2021-12-06 18:23:06,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 3 states have internal predecessors, (179), 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) [2021-12-06 18:23:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 11826 transitions. [2021-12-06 18:23:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-06 18:23:06,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:06,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:06,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:23:06,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:06,338 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:06,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1984989751, now seen corresponding path program 1 times [2021-12-06 18:23:06,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:06,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003518619] [2021-12-06 18:23:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:06,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-06 18:23:06,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:06,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003518619] [2021-12-06 18:23:06,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003518619] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:06,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:06,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:06,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010242011] [2021-12-06 18:23:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:06,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:06,455 INFO L87 Difference]: Start difference. First operand 10010 states and 11826 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-12-06 18:23:06,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:06,952 INFO L93 Difference]: Finished difference Result 19648 states and 23262 transitions. [2021-12-06 18:23:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:06,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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 295 [2021-12-06 18:23:06,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:06,976 INFO L225 Difference]: With dead ends: 19648 [2021-12-06 18:23:06,976 INFO L226 Difference]: Without dead ends: 10008 [2021-12-06 18:23:06,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:06,981 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 170 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:06,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 304 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10008 states. [2021-12-06 18:23:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10008 to 10008. [2021-12-06 18:23:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10008 states, 10007 states have (on average 1.1504946537423804) internal successors, (11513), 10007 states have internal predecessors, (11513), 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) [2021-12-06 18:23:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10008 states to 10008 states and 11513 transitions. [2021-12-06 18:23:07,077 INFO L78 Accepts]: Start accepts. Automaton has 10008 states and 11513 transitions. Word has length 295 [2021-12-06 18:23:07,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:07,077 INFO L470 AbstractCegarLoop]: Abstraction has 10008 states and 11513 transitions. [2021-12-06 18:23:07,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2021-12-06 18:23:07,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10008 states and 11513 transitions. [2021-12-06 18:23:07,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-12-06 18:23:07,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:07,081 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:07,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:23:07,081 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:07,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash 286412562, now seen corresponding path program 1 times [2021-12-06 18:23:07,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:07,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918752566] [2021-12-06 18:23:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:07,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 125 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:07,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:07,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918752566] [2021-12-06 18:23:07,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918752566] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:07,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992669629] [2021-12-06 18:23:07,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:07,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:07,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:07,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:23:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:07,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:23:07,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:07,733 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:07,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:07,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992669629] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:07,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:07,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:07,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823270877] [2021-12-06 18:23:07,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:07,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:07,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:07,735 INFO L87 Difference]: Start difference. First operand 10008 states and 11513 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-12-06 18:23:08,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:08,230 INFO L93 Difference]: Finished difference Result 20954 states and 24251 transitions. [2021-12-06 18:23:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:08,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 298 [2021-12-06 18:23:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:08,242 INFO L225 Difference]: With dead ends: 20954 [2021-12-06 18:23:08,242 INFO L226 Difference]: Without dead ends: 11316 [2021-12-06 18:23:08,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:08,250 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 99 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:08,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 326 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11316 states. [2021-12-06 18:23:08,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11316 to 11307. [2021-12-06 18:23:08,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11307 states, 11306 states have (on average 1.151689368476915) internal successors, (13021), 11306 states have internal predecessors, (13021), 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) [2021-12-06 18:23:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11307 states to 11307 states and 13021 transitions. [2021-12-06 18:23:08,366 INFO L78 Accepts]: Start accepts. Automaton has 11307 states and 13021 transitions. Word has length 298 [2021-12-06 18:23:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:08,366 INFO L470 AbstractCegarLoop]: Abstraction has 11307 states and 13021 transitions. [2021-12-06 18:23:08,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-12-06 18:23:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11307 states and 13021 transitions. [2021-12-06 18:23:08,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-06 18:23:08,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:08,370 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-12-06 18:23:08,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:23:08,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 18:23:08,572 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:08,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:08,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1382301666, now seen corresponding path program 1 times [2021-12-06 18:23:08,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:08,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749345468] [2021-12-06 18:23:08,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:08,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:08,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:08,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749345468] [2021-12-06 18:23:08,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749345468] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:08,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789618002] [2021-12-06 18:23:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:08,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:08,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:08,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:08,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 18:23:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:08,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:23:08,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:09,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:23:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:10,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789618002] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:10,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 18:23:10,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2021-12-06 18:23:10,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012367174] [2021-12-06 18:23:10,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:10,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:23:10,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:23:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:10,319 INFO L87 Difference]: Start difference. First operand 11307 states and 13021 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-12-06 18:23:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:11,499 INFO L93 Difference]: Finished difference Result 18343 states and 21259 transitions. [2021-12-06 18:23:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:23:11,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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 303 [2021-12-06 18:23:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:11,521 INFO L225 Difference]: With dead ends: 18343 [2021-12-06 18:23:11,521 INFO L226 Difference]: Without dead ends: 18341 [2021-12-06 18:23:11,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:11,525 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 263 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:11,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 206 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-06 18:23:11,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2021-12-06 18:23:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 12779. [2021-12-06 18:23:11,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12779 states, 12778 states have (on average 1.1523712631084677) internal successors, (14725), 12778 states have internal predecessors, (14725), 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) [2021-12-06 18:23:11,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12779 states to 12779 states and 14725 transitions. [2021-12-06 18:23:11,675 INFO L78 Accepts]: Start accepts. Automaton has 12779 states and 14725 transitions. Word has length 303 [2021-12-06 18:23:11,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:11,675 INFO L470 AbstractCegarLoop]: Abstraction has 12779 states and 14725 transitions. [2021-12-06 18:23:11,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-12-06 18:23:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12779 states and 14725 transitions. [2021-12-06 18:23:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-06 18:23:11,680 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:11,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-12-06 18:23:11,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 18:23:11,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 18:23:11,881 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:11,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:11,882 INFO L85 PathProgramCache]: Analyzing trace with hash -807971748, now seen corresponding path program 1 times [2021-12-06 18:23:11,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:11,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629945731] [2021-12-06 18:23:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:11,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:12,040 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-06 18:23:12,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629945731] [2021-12-06 18:23:12,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629945731] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:12,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91813860] [2021-12-06 18:23:12,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:12,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:12,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:12,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:12,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 18:23:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:12,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:23:12,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-06 18:23:12,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:12,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91813860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:12,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:12,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:12,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633318614] [2021-12-06 18:23:12,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:12,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:12,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:12,340 INFO L87 Difference]: Start difference. First operand 12779 states and 14725 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-12-06 18:23:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:12,979 INFO L93 Difference]: Finished difference Result 28131 states and 32517 transitions. [2021-12-06 18:23:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:12,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 327 [2021-12-06 18:23:12,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:12,994 INFO L225 Difference]: With dead ends: 28131 [2021-12-06 18:23:12,994 INFO L226 Difference]: Without dead ends: 15722 [2021-12-06 18:23:13,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:13,003 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 133 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:13,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 369 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-06 18:23:13,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15722 states. [2021-12-06 18:23:13,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15722 to 14618. [2021-12-06 18:23:13,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14618 states, 14617 states have (on average 1.1441472258329342) internal successors, (16724), 14617 states have internal predecessors, (16724), 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) [2021-12-06 18:23:13,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14618 states to 14618 states and 16724 transitions. [2021-12-06 18:23:13,165 INFO L78 Accepts]: Start accepts. Automaton has 14618 states and 16724 transitions. Word has length 327 [2021-12-06 18:23:13,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:13,166 INFO L470 AbstractCegarLoop]: Abstraction has 14618 states and 16724 transitions. [2021-12-06 18:23:13,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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) [2021-12-06 18:23:13,166 INFO L276 IsEmpty]: Start isEmpty. Operand 14618 states and 16724 transitions. [2021-12-06 18:23:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-12-06 18:23:13,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:13,174 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:13,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 18:23:13,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:13,375 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:13,376 INFO L85 PathProgramCache]: Analyzing trace with hash 332634922, now seen corresponding path program 1 times [2021-12-06 18:23:13,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:13,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081452694] [2021-12-06 18:23:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:13,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:13,534 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 281 proven. 27 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2021-12-06 18:23:13,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:13,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081452694] [2021-12-06 18:23:13,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081452694] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:13,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417170341] [2021-12-06 18:23:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:13,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:13,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:13,535 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:13,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 18:23:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:13,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:23:13,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-06 18:23:13,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417170341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:13,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:13,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:13,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309395561] [2021-12-06 18:23:13,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:13,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:13,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:13,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:13,989 INFO L87 Difference]: Start difference. First operand 14618 states and 16724 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-06 18:23:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:14,465 INFO L93 Difference]: Finished difference Result 30531 states and 34952 transitions. [2021-12-06 18:23:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 352 [2021-12-06 18:23:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:14,482 INFO L225 Difference]: With dead ends: 30531 [2021-12-06 18:23:14,482 INFO L226 Difference]: Without dead ends: 16283 [2021-12-06 18:23:14,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:14,493 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 84 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:14,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 369 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:23:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16283 states. [2021-12-06 18:23:14,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16283 to 15360. [2021-12-06 18:23:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15360 states, 15359 states have (on average 1.1405039390585325) internal successors, (17517), 15359 states have internal predecessors, (17517), 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) [2021-12-06 18:23:14,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15360 states to 15360 states and 17517 transitions. [2021-12-06 18:23:14,636 INFO L78 Accepts]: Start accepts. Automaton has 15360 states and 17517 transitions. Word has length 352 [2021-12-06 18:23:14,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:14,636 INFO L470 AbstractCegarLoop]: Abstraction has 15360 states and 17517 transitions. [2021-12-06 18:23:14,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-06 18:23:14,636 INFO L276 IsEmpty]: Start isEmpty. Operand 15360 states and 17517 transitions. [2021-12-06 18:23:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-12-06 18:23:14,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:14,643 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:14,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 18:23:14,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 18:23:14,845 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:14,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:14,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1737705753, now seen corresponding path program 1 times [2021-12-06 18:23:14,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:14,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673104694] [2021-12-06 18:23:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:14,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:15,027 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 208 proven. 168 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-12-06 18:23:15,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:15,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673104694] [2021-12-06 18:23:15,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673104694] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:15,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385727650] [2021-12-06 18:23:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:15,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:15,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:15,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:15,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 18:23:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:15,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:23:15,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-12-06 18:23:15,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:15,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385727650] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:15,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:15,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:15,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995332489] [2021-12-06 18:23:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:15,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:15,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:15,550 INFO L87 Difference]: Start difference. First operand 15360 states and 17517 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-06 18:23:16,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:16,019 INFO L93 Difference]: Finished difference Result 30720 states and 35028 transitions. [2021-12-06 18:23:16,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:16,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 373 [2021-12-06 18:23:16,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:16,032 INFO L225 Difference]: With dead ends: 30720 [2021-12-06 18:23:16,032 INFO L226 Difference]: Without dead ends: 15362 [2021-12-06 18:23:16,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:16,039 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 91 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:16,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:23:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15362 states. [2021-12-06 18:23:16,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15362 to 14256. [2021-12-06 18:23:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14256 states, 14255 states have (on average 1.1349701858996843) internal successors, (16179), 14255 states have internal predecessors, (16179), 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) [2021-12-06 18:23:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14256 states to 14256 states and 16179 transitions. [2021-12-06 18:23:16,180 INFO L78 Accepts]: Start accepts. Automaton has 14256 states and 16179 transitions. Word has length 373 [2021-12-06 18:23:16,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:16,181 INFO L470 AbstractCegarLoop]: Abstraction has 14256 states and 16179 transitions. [2021-12-06 18:23:16,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2021-12-06 18:23:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand 14256 states and 16179 transitions. [2021-12-06 18:23:16,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-12-06 18:23:16,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:16,190 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:16,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 18:23:16,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:16,392 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:16,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:16,393 INFO L85 PathProgramCache]: Analyzing trace with hash -764587049, now seen corresponding path program 1 times [2021-12-06 18:23:16,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:16,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865283623] [2021-12-06 18:23:16,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:16,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:16,542 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 188 proven. 211 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:16,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:16,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865283623] [2021-12-06 18:23:16,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865283623] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:16,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656692877] [2021-12-06 18:23:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:16,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:16,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:16,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:16,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 18:23:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:16,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 18:23:16,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:16,990 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:16,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:16,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656692877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:16,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:16,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:16,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431362095] [2021-12-06 18:23:16,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:16,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:16,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:16,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:16,992 INFO L87 Difference]: Start difference. First operand 14256 states and 16179 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-12-06 18:23:17,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:17,529 INFO L93 Difference]: Finished difference Result 31482 states and 35888 transitions. [2021-12-06 18:23:17,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:17,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 410 [2021-12-06 18:23:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:17,541 INFO L225 Difference]: With dead ends: 31482 [2021-12-06 18:23:17,542 INFO L226 Difference]: Without dead ends: 17596 [2021-12-06 18:23:17,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:17,548 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 105 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:17,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 306 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:17,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17596 states. [2021-12-06 18:23:17,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17596 to 17219. [2021-12-06 18:23:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17219 states, 17218 states have (on average 1.1388082239516786) internal successors, (19608), 17218 states have internal predecessors, (19608), 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) [2021-12-06 18:23:17,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17219 states to 17219 states and 19608 transitions. [2021-12-06 18:23:17,704 INFO L78 Accepts]: Start accepts. Automaton has 17219 states and 19608 transitions. Word has length 410 [2021-12-06 18:23:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:17,704 INFO L470 AbstractCegarLoop]: Abstraction has 17219 states and 19608 transitions. [2021-12-06 18:23:17,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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) [2021-12-06 18:23:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 17219 states and 19608 transitions. [2021-12-06 18:23:17,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-12-06 18:23:17,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:17,715 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2021-12-06 18:23:17,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 18:23:17,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-06 18:23:17,917 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash 890840300, now seen corresponding path program 1 times [2021-12-06 18:23:17,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:17,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324335324] [2021-12-06 18:23:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:17,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 188 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-12-06 18:23:18,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:18,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324335324] [2021-12-06 18:23:18,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324335324] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:18,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322896850] [2021-12-06 18:23:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:18,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:18,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:18,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:18,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 18:23:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:18,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 18:23:18,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 293 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:19,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:23:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 293 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:21,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322896850] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:23:21,394 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:23:21,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2021-12-06 18:23:21,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788698472] [2021-12-06 18:23:21,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:23:21,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 18:23:21,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 18:23:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-06 18:23:21,396 INFO L87 Difference]: Start difference. First operand 17219 states and 19608 transitions. Second operand has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 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) [2021-12-06 18:23:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:26,661 INFO L93 Difference]: Finished difference Result 47415 states and 53772 transitions. [2021-12-06 18:23:26,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-06 18:23:26,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 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 432 [2021-12-06 18:23:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:26,683 INFO L225 Difference]: With dead ends: 47415 [2021-12-06 18:23:26,683 INFO L226 Difference]: Without dead ends: 30014 [2021-12-06 18:23:26,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2021-12-06 18:23:26,692 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 3830 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7555 mSolverCounterSat, 1764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 9319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1764 IncrementalHoareTripleChecker+Valid, 7555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:26,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3830 Valid, 206 Invalid, 9319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1764 Valid, 7555 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-12-06 18:23:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30014 states. [2021-12-06 18:23:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30014 to 18668. [2021-12-06 18:23:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18668 states, 18667 states have (on average 1.1046767022017463) internal successors, (20621), 18667 states have internal predecessors, (20621), 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) [2021-12-06 18:23:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18668 states to 18668 states and 20621 transitions. [2021-12-06 18:23:26,917 INFO L78 Accepts]: Start accepts. Automaton has 18668 states and 20621 transitions. Word has length 432 [2021-12-06 18:23:26,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:26,918 INFO L470 AbstractCegarLoop]: Abstraction has 18668 states and 20621 transitions. [2021-12-06 18:23:26,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 83.33333333333333) internal successors, (1000), 11 states have internal predecessors, (1000), 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) [2021-12-06 18:23:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 18668 states and 20621 transitions. [2021-12-06 18:23:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-12-06 18:23:26,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:26,930 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:26,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-06 18:23:27,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 18:23:27,133 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:27,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:27,134 INFO L85 PathProgramCache]: Analyzing trace with hash -482780604, now seen corresponding path program 1 times [2021-12-06 18:23:27,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:27,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440181492] [2021-12-06 18:23:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:27,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 525 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:23:27,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:27,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440181492] [2021-12-06 18:23:27,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440181492] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:27,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112986354] [2021-12-06 18:23:27,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:27,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:27,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:27,331 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:27,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 18:23:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:27,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 18:23:27,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 426 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-12-06 18:23:28,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:28,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112986354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:28,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:28,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-12-06 18:23:28,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061683807] [2021-12-06 18:23:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:28,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:28,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:28,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:28,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:23:28,017 INFO L87 Difference]: Start difference. First operand 18668 states and 20621 transitions. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-12-06 18:23:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:28,589 INFO L93 Difference]: Finished difference Result 37337 states and 41264 transitions. [2021-12-06 18:23:28,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:28,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 448 [2021-12-06 18:23:28,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:28,603 INFO L225 Difference]: With dead ends: 37337 [2021-12-06 18:23:28,603 INFO L226 Difference]: Without dead ends: 19039 [2021-12-06 18:23:28,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:23:28,610 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 44 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 355 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:28,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19039 states. [2021-12-06 18:23:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19039 to 19036. [2021-12-06 18:23:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19036 states, 19035 states have (on average 1.1016023115313895) internal successors, (20969), 19035 states have internal predecessors, (20969), 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) [2021-12-06 18:23:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19036 states to 19036 states and 20969 transitions. [2021-12-06 18:23:28,820 INFO L78 Accepts]: Start accepts. Automaton has 19036 states and 20969 transitions. Word has length 448 [2021-12-06 18:23:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:28,821 INFO L470 AbstractCegarLoop]: Abstraction has 19036 states and 20969 transitions. [2021-12-06 18:23:28,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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) [2021-12-06 18:23:28,821 INFO L276 IsEmpty]: Start isEmpty. Operand 19036 states and 20969 transitions. [2021-12-06 18:23:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2021-12-06 18:23:28,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:28,837 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:28,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-06 18:23:29,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-06 18:23:29,039 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:29,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:29,040 INFO L85 PathProgramCache]: Analyzing trace with hash 743274997, now seen corresponding path program 1 times [2021-12-06 18:23:29,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:29,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706941480] [2021-12-06 18:23:29,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:29,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 314 proven. 516 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2021-12-06 18:23:29,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:29,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706941480] [2021-12-06 18:23:29,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706941480] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:29,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581784113] [2021-12-06 18:23:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:29,226 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:29,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:29,227 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:29,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 18:23:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:29,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:23:29,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:29,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-12-06 18:23:29,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:29,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581784113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:29,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:29,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:29,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746722521] [2021-12-06 18:23:29,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:29,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:23:29,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:29,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:23:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:23:29,857 INFO L87 Difference]: Start difference. First operand 19036 states and 20969 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 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) [2021-12-06 18:23:30,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:30,684 INFO L93 Difference]: Finished difference Result 38624 states and 42525 transitions. [2021-12-06 18:23:30,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:23:30,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 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 569 [2021-12-06 18:23:30,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:30,698 INFO L225 Difference]: With dead ends: 38624 [2021-12-06 18:23:30,698 INFO L226 Difference]: Without dead ends: 19774 [2021-12-06 18:23:30,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:23:30,706 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 200 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:30,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 122 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 18:23:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19774 states. [2021-12-06 18:23:30,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19774 to 19588. [2021-12-06 18:23:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19588 states, 19587 states have (on average 1.099606882115689) internal successors, (21538), 19587 states have internal predecessors, (21538), 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) [2021-12-06 18:23:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19588 states to 19588 states and 21538 transitions. [2021-12-06 18:23:30,897 INFO L78 Accepts]: Start accepts. Automaton has 19588 states and 21538 transitions. Word has length 569 [2021-12-06 18:23:30,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:30,897 INFO L470 AbstractCegarLoop]: Abstraction has 19588 states and 21538 transitions. [2021-12-06 18:23:30,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 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) [2021-12-06 18:23:30,897 INFO L276 IsEmpty]: Start isEmpty. Operand 19588 states and 21538 transitions. [2021-12-06 18:23:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2021-12-06 18:23:30,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:30,910 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:30,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 18:23:31,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 18:23:31,112 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash -245713591, now seen corresponding path program 1 times [2021-12-06 18:23:31,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:31,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433199989] [2021-12-06 18:23:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:31,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:31,308 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 251 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-06 18:23:31,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:31,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433199989] [2021-12-06 18:23:31,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433199989] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:31,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914590413] [2021-12-06 18:23:31,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:31,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:31,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:31,309 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:31,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 18:23:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:31,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 18:23:31,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:32,082 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 286 proven. 469 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-12-06 18:23:32,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:23:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 251 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-12-06 18:23:33,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914590413] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:23:33,484 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:23:33,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2021-12-06 18:23:33,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163490829] [2021-12-06 18:23:33,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:23:33,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 18:23:33,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:33,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 18:23:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:23:33,487 INFO L87 Difference]: Start difference. First operand 19588 states and 21538 transitions. Second operand has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 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) [2021-12-06 18:23:35,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:35,790 INFO L93 Difference]: Finished difference Result 61129 states and 66877 transitions. [2021-12-06 18:23:35,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 18:23:35,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 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 587 [2021-12-06 18:23:35,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:35,827 INFO L225 Difference]: With dead ends: 61129 [2021-12-06 18:23:35,827 INFO L226 Difference]: Without dead ends: 41911 [2021-12-06 18:23:35,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1176 GetRequests, 1168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:23:35,839 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 1073 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 3625 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 4101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 3625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:35,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1073 Valid, 141 Invalid, 4101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 3625 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-06 18:23:35,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41911 states. [2021-12-06 18:23:36,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41911 to 30470. [2021-12-06 18:23:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30470 states, 30469 states have (on average 1.0938987167284782) internal successors, (33330), 30469 states have internal predecessors, (33330), 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) [2021-12-06 18:23:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30470 states to 30470 states and 33330 transitions. [2021-12-06 18:23:36,191 INFO L78 Accepts]: Start accepts. Automaton has 30470 states and 33330 transitions. Word has length 587 [2021-12-06 18:23:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:36,191 INFO L470 AbstractCegarLoop]: Abstraction has 30470 states and 33330 transitions. [2021-12-06 18:23:36,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 85.1) internal successors, (851), 9 states have internal predecessors, (851), 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) [2021-12-06 18:23:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 30470 states and 33330 transitions. [2021-12-06 18:23:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2021-12-06 18:23:36,204 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:36,205 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-12-06 18:23:36,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-06 18:23:36,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:36,406 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:36,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1548100475, now seen corresponding path program 1 times [2021-12-06 18:23:36,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:36,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458426724] [2021-12-06 18:23:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:36,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:36,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 947 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-12-06 18:23:36,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:36,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458426724] [2021-12-06 18:23:36,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458426724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:36,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:36,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:36,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217571691] [2021-12-06 18:23:36,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:36,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:23:36,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:23:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:23:36,582 INFO L87 Difference]: Start difference. First operand 30470 states and 33330 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 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) [2021-12-06 18:23:37,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:37,538 INFO L93 Difference]: Finished difference Result 71645 states and 78264 transitions. [2021-12-06 18:23:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 18:23:37,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 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 601 [2021-12-06 18:23:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:37,568 INFO L225 Difference]: With dead ends: 71645 [2021-12-06 18:23:37,568 INFO L226 Difference]: Without dead ends: 40621 [2021-12-06 18:23:37,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:23:37,580 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 203 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:37,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 63 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 18:23:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40621 states. [2021-12-06 18:23:37,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40621 to 34884. [2021-12-06 18:23:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34884 states, 34883 states have (on average 1.0912192185305163) internal successors, (38065), 34883 states have internal predecessors, (38065), 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) [2021-12-06 18:23:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34884 states to 34884 states and 38065 transitions. [2021-12-06 18:23:37,969 INFO L78 Accepts]: Start accepts. Automaton has 34884 states and 38065 transitions. Word has length 601 [2021-12-06 18:23:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:37,969 INFO L470 AbstractCegarLoop]: Abstraction has 34884 states and 38065 transitions. [2021-12-06 18:23:37,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 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) [2021-12-06 18:23:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 34884 states and 38065 transitions. [2021-12-06 18:23:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-12-06 18:23:37,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:37,985 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2021-12-06 18:23:37,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:23:37,985 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:37,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1608928017, now seen corresponding path program 1 times [2021-12-06 18:23:37,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:37,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520017165] [2021-12-06 18:23:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:37,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:38,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 921 proven. 209 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-06 18:23:38,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:38,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520017165] [2021-12-06 18:23:38,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520017165] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:38,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507966082] [2021-12-06 18:23:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:38,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:38,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:38,213 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:38,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 18:23:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:38,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:23:38,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:38,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2021-12-06 18:23:38,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:38,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507966082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:38,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:38,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-12-06 18:23:38,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205402702] [2021-12-06 18:23:38,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:38,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:38,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:38,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:38,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:23:38,798 INFO L87 Difference]: Start difference. First operand 34884 states and 38065 transitions. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2021-12-06 18:23:39,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:39,468 INFO L93 Difference]: Finished difference Result 69587 states and 75943 transitions. [2021-12-06 18:23:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:39,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 627 [2021-12-06 18:23:39,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:39,498 INFO L225 Difference]: With dead ends: 69587 [2021-12-06 18:23:39,498 INFO L226 Difference]: Without dead ends: 34889 [2021-12-06 18:23:39,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:23:39,512 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:39,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 331 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34889 states. [2021-12-06 18:23:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34889 to 34884. [2021-12-06 18:23:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34884 states, 34883 states have (on average 1.0784909554797466) internal successors, (37621), 34883 states have internal predecessors, (37621), 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) [2021-12-06 18:23:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34884 states to 34884 states and 37621 transitions. [2021-12-06 18:23:39,891 INFO L78 Accepts]: Start accepts. Automaton has 34884 states and 37621 transitions. Word has length 627 [2021-12-06 18:23:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:39,891 INFO L470 AbstractCegarLoop]: Abstraction has 34884 states and 37621 transitions. [2021-12-06 18:23:39,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2021-12-06 18:23:39,892 INFO L276 IsEmpty]: Start isEmpty. Operand 34884 states and 37621 transitions. [2021-12-06 18:23:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2021-12-06 18:23:39,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:39,907 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:39,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 18:23:40,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:40,109 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:40,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:40,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1421710171, now seen corresponding path program 1 times [2021-12-06 18:23:40,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:40,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840537309] [2021-12-06 18:23:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:40,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1360 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-12-06 18:23:40,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:40,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840537309] [2021-12-06 18:23:40,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840537309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:40,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:40,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:40,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925317099] [2021-12-06 18:23:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:40,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:40,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:40,280 INFO L87 Difference]: Start difference. First operand 34884 states and 37621 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2021-12-06 18:23:40,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:40,964 INFO L93 Difference]: Finished difference Result 71981 states and 77623 transitions. [2021-12-06 18:23:40,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:40,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 643 [2021-12-06 18:23:40,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:40,994 INFO L225 Difference]: With dead ends: 71981 [2021-12-06 18:23:40,994 INFO L226 Difference]: Without dead ends: 39309 [2021-12-06 18:23:41,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:41,008 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 107 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:41,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 61 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39309 states. [2021-12-06 18:23:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39309 to 34138. [2021-12-06 18:23:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34138 states, 34137 states have (on average 1.0763980431789555) internal successors, (36745), 34137 states have internal predecessors, (36745), 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) [2021-12-06 18:23:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34138 states to 34138 states and 36745 transitions. [2021-12-06 18:23:41,373 INFO L78 Accepts]: Start accepts. Automaton has 34138 states and 36745 transitions. Word has length 643 [2021-12-06 18:23:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:41,373 INFO L470 AbstractCegarLoop]: Abstraction has 34138 states and 36745 transitions. [2021-12-06 18:23:41,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2021-12-06 18:23:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 34138 states and 36745 transitions. [2021-12-06 18:23:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2021-12-06 18:23:41,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:41,390 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-06 18:23:41,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 18:23:41,390 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:41,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:41,390 INFO L85 PathProgramCache]: Analyzing trace with hash 200944737, now seen corresponding path program 1 times [2021-12-06 18:23:41,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:41,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084005698] [2021-12-06 18:23:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:41,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 1099 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2021-12-06 18:23:41,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:41,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084005698] [2021-12-06 18:23:41,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084005698] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:41,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:41,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:41,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639922188] [2021-12-06 18:23:41,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:41,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:41,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:41,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:41,631 INFO L87 Difference]: Start difference. First operand 34138 states and 36745 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-12-06 18:23:42,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:42,335 INFO L93 Difference]: Finished difference Result 68088 states and 73298 transitions. [2021-12-06 18:23:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:42,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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 696 [2021-12-06 18:23:42,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:42,363 INFO L225 Difference]: With dead ends: 68088 [2021-12-06 18:23:42,364 INFO L226 Difference]: Without dead ends: 34320 [2021-12-06 18:23:42,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:42,377 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 61 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:42,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 296 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:42,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34320 states. [2021-12-06 18:23:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34320 to 33584. [2021-12-06 18:23:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33584 states, 33583 states have (on average 1.0676830539260935) internal successors, (35856), 33583 states have internal predecessors, (35856), 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) [2021-12-06 18:23:42,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33584 states to 33584 states and 35856 transitions. [2021-12-06 18:23:42,754 INFO L78 Accepts]: Start accepts. Automaton has 33584 states and 35856 transitions. Word has length 696 [2021-12-06 18:23:42,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:42,754 INFO L470 AbstractCegarLoop]: Abstraction has 33584 states and 35856 transitions. [2021-12-06 18:23:42,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2021-12-06 18:23:42,754 INFO L276 IsEmpty]: Start isEmpty. Operand 33584 states and 35856 transitions. [2021-12-06 18:23:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2021-12-06 18:23:42,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:42,770 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:42,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 18:23:42,770 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -807446658, now seen corresponding path program 1 times [2021-12-06 18:23:42,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:42,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949029143] [2021-12-06 18:23:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:42,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:42,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2242 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 1802 trivial. 0 not checked. [2021-12-06 18:23:42,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:42,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949029143] [2021-12-06 18:23:42,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949029143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:42,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:42,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:42,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037078854] [2021-12-06 18:23:42,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:42,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:42,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:42,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:42,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:42,971 INFO L87 Difference]: Start difference. First operand 33584 states and 35856 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-12-06 18:23:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:43,592 INFO L93 Difference]: Finished difference Result 71046 states and 75874 transitions. [2021-12-06 18:23:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:43,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 760 [2021-12-06 18:23:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:43,622 INFO L225 Difference]: With dead ends: 71046 [2021-12-06 18:23:43,622 INFO L226 Difference]: Without dead ends: 37832 [2021-12-06 18:23:43,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:43,636 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 150 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:43,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 297 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-06 18:23:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37832 states. [2021-12-06 18:23:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37832 to 30641. [2021-12-06 18:23:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30641 states, 30640 states have (on average 1.0673629242819844) internal successors, (32704), 30640 states have internal predecessors, (32704), 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) [2021-12-06 18:23:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30641 states to 30641 states and 32704 transitions. [2021-12-06 18:23:44,007 INFO L78 Accepts]: Start accepts. Automaton has 30641 states and 32704 transitions. Word has length 760 [2021-12-06 18:23:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:44,008 INFO L470 AbstractCegarLoop]: Abstraction has 30641 states and 32704 transitions. [2021-12-06 18:23:44,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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) [2021-12-06 18:23:44,008 INFO L276 IsEmpty]: Start isEmpty. Operand 30641 states and 32704 transitions. [2021-12-06 18:23:44,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2021-12-06 18:23:44,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:44,024 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1] [2021-12-06 18:23:44,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 18:23:44,024 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1099534904, now seen corresponding path program 1 times [2021-12-06 18:23:44,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11965390] [2021-12-06 18:23:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:44,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:44,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1324 proven. 77 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-12-06 18:23:44,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:44,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11965390] [2021-12-06 18:23:44,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11965390] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:44,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719925665] [2021-12-06 18:23:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:44,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:44,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:44,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 18:23:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 18:23:44,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 1401 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2021-12-06 18:23:44,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:23:44,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719925665] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:44,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:23:44,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 18:23:44,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199251950] [2021-12-06 18:23:44,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:44,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:44,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:44,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:44,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:44,833 INFO L87 Difference]: Start difference. First operand 30641 states and 32704 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2021-12-06 18:23:45,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:45,363 INFO L93 Difference]: Finished difference Result 61456 states and 65601 transitions. [2021-12-06 18:23:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:45,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 767 [2021-12-06 18:23:45,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:45,387 INFO L225 Difference]: With dead ends: 61456 [2021-12-06 18:23:45,387 INFO L226 Difference]: Without dead ends: 31185 [2021-12-06 18:23:45,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:23:45,398 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 59 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:45,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 125 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:23:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31185 states. [2021-12-06 18:23:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31185 to 27502. [2021-12-06 18:23:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27502 states, 27501 states have (on average 1.0617068470237445) internal successors, (29198), 27501 states have internal predecessors, (29198), 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) [2021-12-06 18:23:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27502 states to 27502 states and 29198 transitions. [2021-12-06 18:23:45,702 INFO L78 Accepts]: Start accepts. Automaton has 27502 states and 29198 transitions. Word has length 767 [2021-12-06 18:23:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:45,703 INFO L470 AbstractCegarLoop]: Abstraction has 27502 states and 29198 transitions. [2021-12-06 18:23:45,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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) [2021-12-06 18:23:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27502 states and 29198 transitions. [2021-12-06 18:23:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2021-12-06 18:23:45,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:45,718 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:45,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 18:23:45,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:45,920 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:45,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1099454636, now seen corresponding path program 1 times [2021-12-06 18:23:45,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:45,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063778675] [2021-12-06 18:23:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:45,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:46,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2021-12-06 18:23:46,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:46,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063778675] [2021-12-06 18:23:46,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063778675] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:23:46,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:23:46,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:23:46,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057255673] [2021-12-06 18:23:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:23:46,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:23:46,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:46,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:23:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:46,147 INFO L87 Difference]: Start difference. First operand 27502 states and 29198 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2021-12-06 18:23:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:46,774 INFO L93 Difference]: Finished difference Result 54085 states and 57350 transitions. [2021-12-06 18:23:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:23:46,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 774 [2021-12-06 18:23:46,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:46,800 INFO L225 Difference]: With dead ends: 54085 [2021-12-06 18:23:46,801 INFO L226 Difference]: Without dead ends: 28611 [2021-12-06 18:23:46,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:23:46,814 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 139 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:46,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 69 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-06 18:23:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28611 states. [2021-12-06 18:23:47,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28611 to 26212. [2021-12-06 18:23:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26212 states, 26211 states have (on average 1.0592880851550877) internal successors, (27765), 26211 states have internal predecessors, (27765), 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) [2021-12-06 18:23:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26212 states to 26212 states and 27765 transitions. [2021-12-06 18:23:47,183 INFO L78 Accepts]: Start accepts. Automaton has 26212 states and 27765 transitions. Word has length 774 [2021-12-06 18:23:47,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:47,184 INFO L470 AbstractCegarLoop]: Abstraction has 26212 states and 27765 transitions. [2021-12-06 18:23:47,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2021-12-06 18:23:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 26212 states and 27765 transitions. [2021-12-06 18:23:47,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2021-12-06 18:23:47,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:23:47,207 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:23:47,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 18:23:47,207 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:23:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:23:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1609928325, now seen corresponding path program 1 times [2021-12-06 18:23:47,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:23:47,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941358190] [2021-12-06 18:23:47,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:47,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:23:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1359 proven. 73 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-12-06 18:23:47,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:23:47,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941358190] [2021-12-06 18:23:47,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941358190] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:23:47,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827676997] [2021-12-06 18:23:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:23:47,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:47,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:23:47,465 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:23:47,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 18:23:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:23:47,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 18:23:47,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:23:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1050 proven. 496 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-06 18:23:49,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 18:23:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 1050 proven. 496 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2021-12-06 18:23:51,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827676997] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 18:23:51,416 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 18:23:51,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 13 [2021-12-06 18:23:51,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184204062] [2021-12-06 18:23:51,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 18:23:51,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:23:51,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:23:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:23:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:23:51,419 INFO L87 Difference]: Start difference. First operand 26212 states and 27765 transitions. Second operand has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 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) [2021-12-06 18:23:55,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:23:55,934 INFO L93 Difference]: Finished difference Result 54667 states and 57824 transitions. [2021-12-06 18:23:55,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-06 18:23:55,935 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 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 850 [2021-12-06 18:23:55,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:23:55,935 INFO L225 Difference]: With dead ends: 54667 [2021-12-06 18:23:55,936 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:23:55,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1756 GetRequests, 1717 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=449, Invalid=1191, Unknown=0, NotChecked=0, Total=1640 [2021-12-06 18:23:55,949 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 5344 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7419 mSolverCounterSat, 1221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5344 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 8640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1221 IncrementalHoareTripleChecker+Valid, 7419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:23:55,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5344 Valid, 187 Invalid, 8640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1221 Valid, 7419 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-06 18:23:55,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:23:55,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:23:55,950 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) [2021-12-06 18:23:55,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:23:55,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 850 [2021-12-06 18:23:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:23:55,950 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:23:55,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 98.53846153846153) internal successors, (1281), 13 states have internal predecessors, (1281), 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) [2021-12-06 18:23:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:23:55,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:23:55,953 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 18:23:55,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-06 18:23:56,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:23:56,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 18:24:22,067 WARN L227 SmtUtils]: Spent 25.89s on a formula simplification. DAG size of input: 1055 DAG size of output: 1053 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-06 18:24:47,834 WARN L227 SmtUtils]: Spent 25.76s on a formula simplification. DAG size of input: 1055 DAG size of output: 1053 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-06 18:24:55,919 WARN L227 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 1053 DAG size of output: 157 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-06 18:25:03,977 WARN L227 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 1053 DAG size of output: 157 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,980 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,981 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,982 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse29 (+ ~a23~0 43))) (let ((.cse6 (= ~a4~0 1)) (.cse12 (< 140 ~a29~0)) (.cse19 (< 0 .cse29)) (.cse23 (<= ~a29~0 277))) (let ((.cse10 (<= 260 ~a29~0)) (.cse11 (not (= |ULTIMATE.start_calculate_output_~input#1| 3))) (.cse14 (not (= |ULTIMATE.start_calculate_output_~input#1| 4))) (.cse16 (<= ~a29~0 274)) (.cse18 (let ((.cse30 (mod ~a29~0 15))) (or (< 4 .cse30) (= .cse30 0) (<= 0 ~a29~0)))) (.cse15 (<= ~a4~0 0)) (.cse20 (<= ~a29~0 220)) (.cse7 (<= 130 ~a29~0)) (.cse2 (= ~a25~0 11)) (.cse24 (< 138 ~a23~0)) (.cse17 (<= ~a29~0 140)) (.cse9 (= ~a25~0 12)) (.cse27 (or .cse23 (<= ~a23~0 306))) (.cse26 (<= ~a23~0 312)) (.cse28 (<= ~a25~0 9)) (.cse0 (<= .cse29 0)) (.cse8 (= ~a25~0 13)) (.cse22 (or .cse12 .cse19)) (.cse1 (<= 0 (+ ~a23~0 599772))) (.cse13 (<= ~a23~0 247)) (.cse4 (not .cse6)) (.cse25 (<= 10 ~a25~0)) (.cse21 (<= ~a25~0 10)) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse6 .cse5 .cse7 (or .cse8 .cse9)) (and .cse10 .cse2 .cse3 (<= (+ 119992 ~a23~0) 0) .cse5) (and .cse9 (or .cse11 .cse12) .cse13 .cse3 .cse4 .cse5 (or .cse12 .cse14)) (and .cse10 (<= ~a29~0 275) .cse9 .cse3 .cse5 .cse15) (and .cse8 .cse12 .cse16 .cse3 .cse6 .cse5) (and .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse8 .cse0 .cse11 .cse1 .cse3 .cse14 .cse4 .cse5) (and .cse9 .cse18 .cse19 .cse3 .cse20 .cse5 .cse15) (and (< 245 ~a29~0) .cse21 .cse3 .cse6 .cse5) (and .cse1 (<= 256 ~a29~0) .cse13 .cse2 .cse16 .cse3 .cse5) (and .cse22 .cse9 .cse16 .cse3 .cse5 .cse15 .cse7) (and .cse12 (or (and .cse9 .cse23 .cse6 (<= 312 ~a23~0)) (and .cse2 .cse6)) .cse3 .cse5) (and .cse18 (<= 0 (+ (div (+ (- 28690) (* ~a29~0 (- 1))) 5) 49)) .cse3 .cse5 .cse15 (= ~a25~0 10)) (and .cse17 .cse13 .cse21 .cse3 .cse5) (and .cse8 .cse24 .cse3 .cse6 .cse5) (and .cse0 .cse25 .cse1 .cse21 .cse3 .cse5) (and .cse9 (< 371191 ~a23~0) .cse3 .cse6 .cse5 (<= ~a29~0 130)) (and .cse9 .cse1 .cse13 .cse3 .cse20 .cse6 .cse5) (and .cse2 .cse3 .cse6 .cse26 .cse5 .cse7) (and (or (and .cse24 .cse2 .cse3 .cse6 .cse5) (and .cse9 .cse24 .cse27 .cse3 .cse6 .cse5)) .cse26) (and .cse17 .cse27 .cse3 .cse6 .cse26 .cse28 .cse5) (and .cse9 .cse13 .cse19 .cse3 .cse4 .cse5) (and .cse12 (< 251148 ~a23~0) .cse27 .cse3 .cse6 .cse28 .cse5) (and .cse0 .cse21 .cse6) (and .cse13 .cse27 .cse3 .cse6 .cse26 .cse28 .cse5) (and .cse0 .cse21 (<= 10250 ~a29~0) .cse3 .cse5) (and .cse8 .cse22 .cse1 .cse13 .cse3 .cse4 .cse5) (and .cse25 .cse21 .cse3 .cse6 .cse5))))) [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,983 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,984 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse29 (+ ~a23~0 43))) (let ((.cse6 (= ~a4~0 1)) (.cse12 (< 140 ~a29~0)) (.cse19 (< 0 .cse29)) (.cse23 (<= ~a29~0 277))) (let ((.cse10 (<= 260 ~a29~0)) (.cse11 (not (= |ULTIMATE.start_calculate_output_~input#1| 3))) (.cse14 (not (= |ULTIMATE.start_calculate_output_~input#1| 4))) (.cse16 (<= ~a29~0 274)) (.cse18 (let ((.cse30 (mod ~a29~0 15))) (or (< 4 .cse30) (= .cse30 0) (<= 0 ~a29~0)))) (.cse15 (<= ~a4~0 0)) (.cse20 (<= ~a29~0 220)) (.cse7 (<= 130 ~a29~0)) (.cse2 (= ~a25~0 11)) (.cse24 (< 138 ~a23~0)) (.cse17 (<= ~a29~0 140)) (.cse9 (= ~a25~0 12)) (.cse27 (or .cse23 (<= ~a23~0 306))) (.cse26 (<= ~a23~0 312)) (.cse28 (<= ~a25~0 9)) (.cse0 (<= .cse29 0)) (.cse8 (= ~a25~0 13)) (.cse22 (or .cse12 .cse19)) (.cse1 (<= 0 (+ ~a23~0 599772))) (.cse13 (<= ~a23~0 247)) (.cse4 (not .cse6)) (.cse25 (<= 10 ~a25~0)) (.cse21 (<= ~a25~0 10)) (.cse3 (= ~a3~0 1)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse3 .cse6 .cse5 .cse7 (or .cse8 .cse9)) (and .cse10 .cse2 .cse3 (<= (+ 119992 ~a23~0) 0) .cse5) (and .cse9 (or .cse11 .cse12) .cse13 .cse3 .cse4 .cse5 (or .cse12 .cse14)) (and .cse10 (<= ~a29~0 275) .cse9 .cse3 .cse5 .cse15) (and .cse8 .cse12 .cse16 .cse3 .cse6 .cse5) (and .cse0 .cse17 .cse2 .cse3 .cse4 .cse5) (and .cse8 .cse0 .cse11 .cse1 .cse3 .cse14 .cse4 .cse5) (and .cse9 .cse18 .cse19 .cse3 .cse20 .cse5 .cse15) (and (< 245 ~a29~0) .cse21 .cse3 .cse6 .cse5) (and .cse1 (<= 256 ~a29~0) .cse13 .cse2 .cse16 .cse3 .cse5) (and .cse22 .cse9 .cse16 .cse3 .cse5 .cse15 .cse7) (and .cse12 (or (and .cse9 .cse23 .cse6 (<= 312 ~a23~0)) (and .cse2 .cse6)) .cse3 .cse5) (and .cse18 (<= 0 (+ (div (+ (- 28690) (* ~a29~0 (- 1))) 5) 49)) .cse3 .cse5 .cse15 (= ~a25~0 10)) (and .cse17 .cse13 .cse21 .cse3 .cse5) (and .cse8 .cse24 .cse3 .cse6 .cse5) (and .cse0 .cse25 .cse1 .cse21 .cse3 .cse5) (and .cse9 (< 371191 ~a23~0) .cse3 .cse6 .cse5 (<= ~a29~0 130)) (and .cse9 .cse1 .cse13 .cse3 .cse20 .cse6 .cse5) (and .cse2 .cse3 .cse6 .cse26 .cse5 .cse7) (and (or (and .cse24 .cse2 .cse3 .cse6 .cse5) (and .cse9 .cse24 .cse27 .cse3 .cse6 .cse5)) .cse26) (and .cse17 .cse27 .cse3 .cse6 .cse26 .cse28 .cse5) (and .cse9 .cse13 .cse19 .cse3 .cse4 .cse5) (and .cse12 (< 251148 ~a23~0) .cse27 .cse3 .cse6 .cse28 .cse5) (and .cse0 .cse21 .cse6) (and .cse13 .cse27 .cse3 .cse6 .cse26 .cse28 .cse5) (and .cse0 .cse21 (<= 10250 ~a29~0) .cse3 .cse5) (and .cse8 .cse22 .cse1 .cse13 .cse3 .cse4 .cse5) (and .cse25 .cse21 .cse3 .cse6 .cse5))))) [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,985 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,986 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,987 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-06 18:25:03,988 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,989 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,990 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-06 18:25:03,991 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,992 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-06 18:25:03,993 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,994 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,995 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-06 18:25:03,996 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-06 18:25:03,998 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:25:03,999 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:25:04,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:25:04 BoogieIcfgContainer [2021-12-06 18:25:04,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:25:04,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:25:04,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:25:04,032 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:25:04,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:22:58" (3/4) ... [2021-12-06 18:25:04,035 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:25:04,060 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 18:25:04,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 18:25:04,063 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 18:25:04,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:25:04,172 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:25:04,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:25:04,173 INFO L158 Benchmark]: Toolchain (without parser) took 127457.58ms. Allocated memory was 86.0MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 55.9MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 464.2MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,173 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 86.0MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:25:04,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.88ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 55.7MB in the beginning and 106.0MB in the end (delta: -50.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.17ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 88.2MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,174 INFO L158 Benchmark]: Boogie Preprocessor took 86.45ms. Allocated memory is still 153.1MB. Free memory was 88.2MB in the beginning and 78.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,174 INFO L158 Benchmark]: RCFGBuilder took 1118.17ms. Allocated memory is still 153.1MB. Free memory was 78.7MB in the beginning and 96.5MB in the end (delta: -17.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,174 INFO L158 Benchmark]: TraceAbstraction took 125434.19ms. Allocated memory was 153.1MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 95.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2021-12-06 18:25:04,174 INFO L158 Benchmark]: Witness Printer took 141.00ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-06 18:25:04,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 86.0MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.88ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 55.7MB in the beginning and 106.0MB in the end (delta: -50.2MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.17ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 88.2MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.45ms. Allocated memory is still 153.1MB. Free memory was 88.2MB in the beginning and 78.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1118.17ms. Allocated memory is still 153.1MB. Free memory was 78.7MB in the beginning and 96.5MB in the end (delta: -17.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * TraceAbstraction took 125434.19ms. Allocated memory was 153.1MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 95.6MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 141.00ms. Allocated memory is still 1.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 125.4s, OverallIterations: 27, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 28.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 67.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13559 SdHoareTripleChecker+Valid, 24.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13559 mSDsluCounter, 6002 SdHoareTripleChecker+Invalid, 20.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 979 mSDsCounter, 5588 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34083 IncrementalHoareTripleChecker+Invalid, 39671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5588 mSolverCounterUnsat, 5023 mSDtfsCounter, 34083 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8960 GetRequests, 8810 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34884occurred in iteration=20, InterpolantAutomatonStates: 148, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 59967 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 377 NumberOfFragments, 1407 HoareAnnotationTreeSize, 3 FomulaSimplifications, 73074 FormulaSimplificationTreeSizeReduction, 51.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 526660 FormulaSimplificationTreeSizeReductionInter, 16.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 18330 NumberOfCodeBlocks, 18330 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 20457 ConstructedInterpolants, 0 QuantifiedInterpolants, 93742 SizeOfPredicates, 19 NumberOfNonLiveVariables, 8873 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 45 InterpolantComputations, 24 PerfectInterpolantSequences, 29141/33894 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29) && (a25 == 13 || a25 == 12))) || ((((260 <= a29 && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((a25 == 12 && (!(input == 3) || 140 < a29)) && a23 <= 247) && a3 == 1) && !(a4 == 1)) && a8 == 15) && (140 < a29 || !(input == 4)))) || (((((260 <= a29 && a29 <= 275) && a25 == 12) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((a25 == 13 && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a29 <= 140) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((((a25 == 13 && a23 + 43 <= 0) && !(input == 3)) && 0 <= a23 + 599772) && a3 == 1) && !(input == 4)) && !(a4 == 1)) && a8 == 15)) || ((((((a25 == 12 && ((4 < a29 % 15 || a29 % 15 == 0) || 0 <= a29)) && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a4 <= 0)) || ((((245 < a29 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && 256 <= a29) && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && a8 == 15)) || (((((((140 < a29 || 0 < a23 + 43) && a25 == 12) && a29 <= 274) && a3 == 1) && a8 == 15) && a4 <= 0) && 130 <= a29)) || (((140 < a29 && ((((a25 == 12 && a29 <= 277) && a4 == 1) && 312 <= a23) || (a25 == 11 && a4 == 1))) && a3 == 1) && a8 == 15)) || (((((((4 < a29 % 15 || a29 % 15 == 0) || 0 <= a29) && 0 <= (-28690 + a29 * -1) / 5 + 49) && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || ((((a29 <= 140 && a23 <= 247) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((a25 == 13 && 138 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && 10 <= a25) && 0 <= a23 + 599772) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && 371191 < a23) && a3 == 1) && a4 == 1) && a8 == 15) && a29 <= 130)) || ((((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 130 <= a29)) || ((((((138 < a23 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 138 < a23) && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a8 == 15)) && a23 <= 312)) || ((((((a29 <= 140 && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || (((((a25 == 12 && a23 <= 247) && 0 < a23 + 43) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((((140 < a29 && 251148 < a23) && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || ((((((a23 <= 247 && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((a23 + 43 <= 0 && a25 <= 10) && 10250 <= a29) && a3 == 1) && a8 == 15)) || ((((((a25 == 13 && (140 < a29 || 0 < a23 + 43)) && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((10 <= a25 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a23 + 43 <= 0 && 0 <= a23 + 599772) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29) && (a25 == 13 || a25 == 12))) || ((((260 <= a29 && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((a25 == 12 && (!(input == 3) || 140 < a29)) && a23 <= 247) && a3 == 1) && !(a4 == 1)) && a8 == 15) && (140 < a29 || !(input == 4)))) || (((((260 <= a29 && a29 <= 275) && a25 == 12) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((a25 == 13 && 140 < a29) && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a29 <= 140) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((((a25 == 13 && a23 + 43 <= 0) && !(input == 3)) && 0 <= a23 + 599772) && a3 == 1) && !(input == 4)) && !(a4 == 1)) && a8 == 15)) || ((((((a25 == 12 && ((4 < a29 % 15 || a29 % 15 == 0) || 0 <= a29)) && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a4 <= 0)) || ((((245 < a29 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 <= a23 + 599772 && 256 <= a29) && a23 <= 247) && a25 == 11) && a29 <= 274) && a3 == 1) && a8 == 15)) || (((((((140 < a29 || 0 < a23 + 43) && a25 == 12) && a29 <= 274) && a3 == 1) && a8 == 15) && a4 <= 0) && 130 <= a29)) || (((140 < a29 && ((((a25 == 12 && a29 <= 277) && a4 == 1) && 312 <= a23) || (a25 == 11 && a4 == 1))) && a3 == 1) && a8 == 15)) || (((((((4 < a29 % 15 || a29 % 15 == 0) || 0 <= a29) && 0 <= (-28690 + a29 * -1) / 5 + 49) && a3 == 1) && a8 == 15) && a4 <= 0) && a25 == 10)) || ((((a29 <= 140 && a23 <= 247) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((a25 == 13 && 138 < a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && 10 <= a25) && 0 <= a23 + 599772) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && 371191 < a23) && a3 == 1) && a4 == 1) && a8 == 15) && a29 <= 130)) || ((((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 130 <= a29)) || ((((((138 < a23 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 138 < a23) && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a8 == 15)) && a23 <= 312)) || ((((((a29 <= 140 && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || (((((a25 == 12 && a23 <= 247) && 0 < a23 + 43) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((((140 < a29 && 251148 < a23) && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a25 <= 9) && a8 == 15)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || ((((((a23 <= 247 && (a29 <= 277 || a23 <= 306)) && a3 == 1) && a4 == 1) && a23 <= 312) && a25 <= 9) && a8 == 15)) || ((((a23 + 43 <= 0 && a25 <= 10) && 10250 <= a29) && a3 == 1) && a8 == 15)) || ((((((a25 == 13 && (140 < a29 || 0 < a23 + 43)) && 0 <= a23 + 599772) && a23 <= 247) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || ((((10 <= a25 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 18:25:04,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fe01031-6477-44d1-add2-5a444f0e62af/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE