./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL --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 c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:26:36,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:26:36,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:26:36,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:26:36,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:26:36,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:26:36,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:26:36,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:26:36,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:26:36,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:26:36,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:26:36,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:26:36,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:26:36,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:26:36,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:26:36,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:26:36,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:26:36,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:26:36,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:26:36,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:26:36,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:26:36,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:26:36,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:26:36,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:26:36,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:26:36,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:26:36,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:26:36,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:26:36,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:26:36,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:26:36,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:26:36,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:26:36,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:26:36,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:26:36,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:26:36,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:26:36,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:26:36,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:26:36,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:26:36,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:26:36,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:26:36,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:26:36,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:26:36,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:26:36,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:26:36,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:26:36,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:26:36,556 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:26:36,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:26:36,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:26:36,557 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:26:36,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:26:36,560 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:26:36,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:26:36,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:26:36,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:26:36,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:26:36,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:26:36,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:26:36,562 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:26:36,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:26:36,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:26:36,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:26:36,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:26:36,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:26:36,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:26:36,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:36,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:26:36,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:26:36,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:26:36,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:26:36,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:26:36,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:26:36,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:26:36,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:26:36,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:26:36,568 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_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 [2021-11-19 04:26:36,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:26:37,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:26:37,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:26:37,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:26:37,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:26:37,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-19 04:26:37,105 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/87aebdc70/83f2d67ff5654c03b3f93f0ac9efc9fa/FLAG86a923c3d [2021-11-19 04:26:37,803 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:26:37,804 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-19 04:26:37,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/87aebdc70/83f2d67ff5654c03b3f93f0ac9efc9fa/FLAG86a923c3d [2021-11-19 04:26:38,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/87aebdc70/83f2d67ff5654c03b3f93f0ac9efc9fa [2021-11-19 04:26:38,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:26:38,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:26:38,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:38,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:26:38,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:26:38,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b979fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38, skipping insertion in model container [2021-11-19 04:26:38,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:26:38,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:26:38,382 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_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-19 04:26:38,454 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:38,465 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:26:38,478 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_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-19 04:26:38,524 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:38,542 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:26:38,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38 WrapperNode [2021-11-19 04:26:38,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:38,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:38,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:26:38,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:26:38,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,602 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 148 [2021-11-19 04:26:38,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:38,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:26:38,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:26:38,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:26:38,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:26:38,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:26:38,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:26:38,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:26:38,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (1/1) ... [2021-11-19 04:26:38,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:38,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:26:38,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:26:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:26:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:26:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-19 04:26:38,778 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-19 04:26:38,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:26:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:26:38,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 04:26:38,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 04:26:38,913 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:26:38,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:26:39,397 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:26:39,408 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:26:39,409 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:26:39,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:39 BoogieIcfgContainer [2021-11-19 04:26:39,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:26:39,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:26:39,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:26:39,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:26:39,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:26:38" (1/3) ... [2021-11-19 04:26:39,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa06e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:39, skipping insertion in model container [2021-11-19 04:26:39,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:38" (2/3) ... [2021-11-19 04:26:39,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa06e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:39, skipping insertion in model container [2021-11-19 04:26:39,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:39" (3/3) ... [2021-11-19 04:26:39,425 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-11-19 04:26:39,432 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:26:39,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:26:39,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:26:39,501 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 [2021-11-19 04:26:39,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:26:39,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 60 states have (on average 1.6) internal successors, (96), 63 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:26:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 04:26:39,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:39,537 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:39,538 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:39,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash -760882007, now seen corresponding path program 1 times [2021-11-19 04:26:39,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:39,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569273588] [2021-11-19 04:26:39,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:39,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-19 04:26:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:40,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:40,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569273588] [2021-11-19 04:26:40,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569273588] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:40,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733875377] [2021-11-19 04:26:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:40,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:40,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:40,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:40,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:26:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:40,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 04:26:40,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 04:26:40,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:40,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733875377] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:26:40,939 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:26:40,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 16 [2021-11-19 04:26:40,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429857076] [2021-11-19 04:26:40,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:26:40,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 04:26:40,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 04:26:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-11-19 04:26:41,001 INFO L87 Difference]: Start difference. First operand has 72 states, 60 states have (on average 1.6) internal successors, (96), 63 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 04:26:41,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:41,962 INFO L93 Difference]: Finished difference Result 255 states and 424 transitions. [2021-11-19 04:26:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-19 04:26:41,966 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2021-11-19 04:26:41,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:41,982 INFO L225 Difference]: With dead ends: 255 [2021-11-19 04:26:41,982 INFO L226 Difference]: Without dead ends: 170 [2021-11-19 04:26:41,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:26:41,993 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 220 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:41,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 1875 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 04:26:42,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-19 04:26:42,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 103. [2021-11-19 04:26:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 90 states have internal predecessors, (126), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-19 04:26:42,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 153 transitions. [2021-11-19 04:26:42,102 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 153 transitions. Word has length 32 [2021-11-19 04:26:42,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:42,104 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 153 transitions. [2021-11-19 04:26:42,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 04:26:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 153 transitions. [2021-11-19 04:26:42,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-19 04:26:42,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:42,109 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:42,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-19 04:26:42,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-19 04:26:42,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:42,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:42,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1139634014, now seen corresponding path program 1 times [2021-11-19 04:26:42,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:42,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264049253] [2021-11-19 04:26:42,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:42,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:42,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:26:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:42,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:42,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264049253] [2021-11-19 04:26:42,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264049253] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:42,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243349201] [2021-11-19 04:26:42,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:42,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:42,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:42,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:26:42,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:26:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:42,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 04:26:42,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:26:42,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:43,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243349201] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:26:43,682 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:26:43,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 11] total 18 [2021-11-19 04:26:43,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150876083] [2021-11-19 04:26:43,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:26:43,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 04:26:43,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:26:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:26:43,686 INFO L87 Difference]: Start difference. First operand 103 states and 153 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-19 04:26:44,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:44,601 INFO L93 Difference]: Finished difference Result 273 states and 422 transitions. [2021-11-19 04:26:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 04:26:44,603 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 36 [2021-11-19 04:26:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:44,614 INFO L225 Difference]: With dead ends: 273 [2021-11-19 04:26:44,615 INFO L226 Difference]: Without dead ends: 208 [2021-11-19 04:26:44,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-11-19 04:26:44,624 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 427 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:44,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1009 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 04:26:44,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-19 04:26:44,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 103. [2021-11-19 04:26:44,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 90 states have internal predecessors, (122), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (16), 11 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-19 04:26:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2021-11-19 04:26:44,676 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 36 [2021-11-19 04:26:44,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:44,677 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2021-11-19 04:26:44,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-11-19 04:26:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2021-11-19 04:26:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 04:26:44,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:44,690 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:44,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:44,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:26:44,916 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:44,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1276417986, now seen corresponding path program 1 times [2021-11-19 04:26:44,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:44,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594628931] [2021-11-19 04:26:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:44,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:26:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:45,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:45,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594628931] [2021-11-19 04:26:45,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594628931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:45,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:45,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:26:45,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824138568] [2021-11-19 04:26:45,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:45,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:45,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:45,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:45,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:45,139 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:45,238 INFO L93 Difference]: Finished difference Result 231 states and 341 transitions. [2021-11-19 04:26:45,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:26:45,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-11-19 04:26:45,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:45,244 INFO L225 Difference]: With dead ends: 231 [2021-11-19 04:26:45,244 INFO L226 Difference]: Without dead ends: 170 [2021-11-19 04:26:45,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:45,251 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 51 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:45,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 446 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:26:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-19 04:26:45,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 166. [2021-11-19 04:26:45,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.3888888888888888) internal successors, (200), 147 states have internal predecessors, (200), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (22), 19 states have call predecessors, (22), 16 states have call successors, (22) [2021-11-19 04:26:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 239 transitions. [2021-11-19 04:26:45,306 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 239 transitions. Word has length 40 [2021-11-19 04:26:45,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:45,307 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 239 transitions. [2021-11-19 04:26:45,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2021-11-19 04:26:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 04:26:45,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:45,315 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:45,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:26:45,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:45,316 INFO L85 PathProgramCache]: Analyzing trace with hash -596359616, now seen corresponding path program 1 times [2021-11-19 04:26:45,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:45,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923498451] [2021-11-19 04:26:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:45,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:26:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:45,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:45,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923498451] [2021-11-19 04:26:45,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923498451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:45,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:45,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 04:26:45,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312850983] [2021-11-19 04:26:45,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:45,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 04:26:45,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:45,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:26:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:45,490 INFO L87 Difference]: Start difference. First operand 166 states and 239 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:45,617 INFO L93 Difference]: Finished difference Result 216 states and 311 transitions. [2021-11-19 04:26:45,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:26:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-11-19 04:26:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:45,621 INFO L225 Difference]: With dead ends: 216 [2021-11-19 04:26:45,626 INFO L226 Difference]: Without dead ends: 161 [2021-11-19 04:26:45,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:26:45,631 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 70 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:45,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 520 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:26:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-19 04:26:45,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157. [2021-11-19 04:26:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 137 states have (on average 1.364963503649635) internal successors, (187), 140 states have internal predecessors, (187), 15 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (20), 17 states have call predecessors, (20), 14 states have call successors, (20) [2021-11-19 04:26:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 222 transitions. [2021-11-19 04:26:45,675 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 222 transitions. Word has length 40 [2021-11-19 04:26:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:45,677 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 222 transitions. [2021-11-19 04:26:45,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,678 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 222 transitions. [2021-11-19 04:26:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 04:26:45,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:45,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:45,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 04:26:45,682 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2082074321, now seen corresponding path program 1 times [2021-11-19 04:26:45,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:45,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368091103] [2021-11-19 04:26:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:45,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-19 04:26:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:45,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:45,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368091103] [2021-11-19 04:26:45,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368091103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:45,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:45,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:26:45,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322479918] [2021-11-19 04:26:45,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:45,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:45,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:45,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:45,805 INFO L87 Difference]: Start difference. First operand 157 states and 222 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:45,843 INFO L93 Difference]: Finished difference Result 205 states and 294 transitions. [2021-11-19 04:26:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:26:45,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2021-11-19 04:26:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:45,849 INFO L225 Difference]: With dead ends: 205 [2021-11-19 04:26:45,849 INFO L226 Difference]: Without dead ends: 163 [2021-11-19 04:26:45,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:45,851 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 48 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:45,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 296 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:26:45,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-19 04:26:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 137. [2021-11-19 04:26:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 121 states have (on average 1.322314049586777) internal successors, (160), 122 states have internal predecessors, (160), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (16), 13 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-19 04:26:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2021-11-19 04:26:45,878 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 187 transitions. Word has length 43 [2021-11-19 04:26:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:45,879 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 187 transitions. [2021-11-19 04:26:45,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2021-11-19 04:26:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:45,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:45,882 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:45,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:26:45,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:45,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1563397194, now seen corresponding path program 1 times [2021-11-19 04:26:45,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:45,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460006205] [2021-11-19 04:26:45,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:45,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-19 04:26:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:45,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:45,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460006205] [2021-11-19 04:26:45,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460006205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:45,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:45,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:26:45,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080254222] [2021-11-19 04:26:45,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:45,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:26:45,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:45,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:26:45,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:26:45,973 INFO L87 Difference]: Start difference. First operand 137 states and 187 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:46,003 INFO L93 Difference]: Finished difference Result 154 states and 208 transitions. [2021-11-19 04:26:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:26:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-19 04:26:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:46,008 INFO L225 Difference]: With dead ends: 154 [2021-11-19 04:26:46,008 INFO L226 Difference]: Without dead ends: 147 [2021-11-19 04:26:46,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:46,010 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:46,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:26:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-11-19 04:26:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2021-11-19 04:26:46,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 125 states have (on average 1.312) internal successors, (164), 126 states have internal predecessors, (164), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (16), 13 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-19 04:26:46,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 191 transitions. [2021-11-19 04:26:46,032 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 191 transitions. Word has length 44 [2021-11-19 04:26:46,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:46,034 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 191 transitions. [2021-11-19 04:26:46,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:46,035 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 191 transitions. [2021-11-19 04:26:46,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:46,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:46,038 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:46,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 04:26:46,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:46,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:46,040 INFO L85 PathProgramCache]: Analyzing trace with hash -956562740, now seen corresponding path program 1 times [2021-11-19 04:26:46,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:46,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041085648] [2021-11-19 04:26:46,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:46,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:46,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-19 04:26:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:46,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-19 04:26:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:46,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-19 04:26:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:46,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:26:46,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041085648] [2021-11-19 04:26:46,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041085648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:46,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:46,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:26:46,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857182075] [2021-11-19 04:26:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:46,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:26:46,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:26:46,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:26:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:26:46,137 INFO L87 Difference]: Start difference. First operand 141 states and 191 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:46,169 INFO L93 Difference]: Finished difference Result 148 states and 197 transitions. [2021-11-19 04:26:46,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:26:46,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-19 04:26:46,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:46,172 INFO L225 Difference]: With dead ends: 148 [2021-11-19 04:26:46,172 INFO L226 Difference]: Without dead ends: 141 [2021-11-19 04:26:46,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:46,175 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 5 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:46,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 385 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:26:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-19 04:26:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2021-11-19 04:26:46,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 121 states have (on average 1.2975206611570247) internal successors, (157), 122 states have internal predecessors, (157), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (16), 13 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-19 04:26:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2021-11-19 04:26:46,191 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 44 [2021-11-19 04:26:46,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:46,192 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2021-11-19 04:26:46,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:46,193 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2021-11-19 04:26:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:46,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:46,194 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:46,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 04:26:46,195 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:46,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:46,196 INFO L85 PathProgramCache]: Analyzing trace with hash -261265623, now seen corresponding path program 2 times [2021-11-19 04:26:46,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:26:46,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866934418] [2021-11-19 04:26:46,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:46,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:26:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:26:46,292 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:26:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:26:46,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:26:46,367 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:26:46,368 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:26:46,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 04:26:46,376 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:46,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:26:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:26:46 BoogieIcfgContainer [2021-11-19 04:26:46,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:26:46,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:26:46,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:26:46,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:26:46,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:39" (3/4) ... [2021-11-19 04:26:46,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:26:46,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:26:46,441 INFO L158 Benchmark]: Toolchain (without parser) took 8342.66ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 79.8MB in the beginning and 89.4MB in the end (delta: -9.6MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,441 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:26:46,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.02ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 88.6MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.63ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,443 INFO L158 Benchmark]: Boogie Preprocessor took 45.62ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,444 INFO L158 Benchmark]: RCFGBuilder took 762.22ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 70.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,444 INFO L158 Benchmark]: TraceAbstraction took 7020.16ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 70.3MB in the beginning and 89.4MB in the end (delta: -19.2MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-19 04:26:46,444 INFO L158 Benchmark]: Witness Printer took 5.57ms. Allocated memory is still 153.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:26:46,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.02ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 88.6MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.63ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.62ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 85.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 762.22ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 70.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7020.16ms. Allocated memory was 117.4MB in the beginning and 153.1MB in the end (delta: 35.7MB). Free memory was 70.3MB in the beginning and 89.4MB in the end (delta: -19.2MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Witness Printer took 5.57ms. Allocated memory is still 153.1MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 111, overapproximation of bitwiseAnd at line 109. Possible FailurePath: [L227] unsigned int a ; [L228] unsigned int ma = __VERIFIER_nondet_uint(); [L229] signed char ea = __VERIFIER_nondet_char(); [L230] unsigned int b ; [L231] unsigned int mb = __VERIFIER_nondet_uint(); [L232] signed char eb = __VERIFIER_nondet_char(); [L233] unsigned int r_add ; [L234] unsigned int zero ; [L235] int sa ; [L236] int sb ; [L237] int tmp ; [L238] int tmp___0 ; [L239] int tmp___1 ; [L240] int tmp___2 ; [L241] int tmp___3 ; [L242] int tmp___4 ; [L243] int tmp___5 ; [L244] int tmp___6 ; [L245] int tmp___7 ; [L246] int tmp___8 ; [L247] int tmp___9 ; [L248] int __retres23 ; VAL [ea=0, eb=0] [L252] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L30] COND TRUE ! m [L31] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L81] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L252] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L252] zero = base2flt(0, 0) [L253] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L30] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L58] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L77] m = m & ~ (1U << 24U) [L78] res = m | ((unsigned int ) (e + 128) << 24U) [L79] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=16777215, e=0, res=16777215] [L81] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-72057589726183425, __retres4=16777215, e=0, res=16777215] [L253] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=-72057589726183425, ea=0, eb=0, ma=16777216, zero=0] [L253] a = base2flt(ma, ea) [L254] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L30] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L58] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L77] m = m & ~ (1U << 24U) [L78] res = m | ((unsigned int ) (e + 128) << 24U) [L79] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=4294967295, e=0, res=4294967295] [L81] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-72057589742960641, __retres4=4294967295, e=0, res=4294967295] [L254] RET, EXPR base2flt(mb, eb) VAL [a=16777215, base2flt(mb, eb)=-72057589742960641, ea=0, eb=0, ma=16777216, mb=16777216, zero=0] [L254] b = base2flt(mb, eb) [L256] COND FALSE !(a < zero) VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, zero=0] [L259] COND TRUE a > zero [L260] tmp = 1 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, tmp=1, zero=0] [L264] sa = tmp VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L266] COND FALSE !(b < zero) VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L269] COND TRUE b > zero [L270] tmp___0 = 1 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, tmp___0=1, zero=0] [L274] sb = tmp___0 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L277] CALL addflt(a, b) [L85] unsigned int res ; [L86] unsigned int ma ; [L87] unsigned int mb ; [L88] unsigned int delta ; [L89] int ea ; [L90] int eb ; [L91] unsigned int tmp ; [L92] unsigned int __retres10 ; VAL [\old(a)=16777215, \old(b)=4294967295, a=16777215, b=4294967295] [L95] COND TRUE a < b [L96] tmp = a [L97] a = b [L98] b = tmp VAL [\old(a)=16777215, \old(b)=4294967295, a=4294967295, b=16777215, tmp=16777215] [L102] COND FALSE !(! b) [L109] ma = a & ((1U << 24U) - 1U) [L110] ea = (int )(a >> 24U) - 128 [L111] ma = ma | (1U << 24U) [L112] mb = b & ((1U << 24U) - 1U) [L113] eb = (int )(b >> 24U) - 128 [L114] mb = mb | (1U << 24U) VAL [\old(a)=16777215, \old(b)=4294967295, a=4294967295, b=16777215, ea=127, eb=128, tmp=16777215] [L115] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=0] [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 849 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 838 mSDsluCounter, 4828 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4049 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 998 IncrementalHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 779 mSDtfsCounter, 998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=3, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 216 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 823 SizeOfPredicates, 10 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 128/165 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 04:26:46,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL --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 c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:26:49,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:26:49,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:26:49,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:26:49,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:26:49,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:26:49,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:26:49,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:26:49,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:26:49,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:26:49,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:26:49,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:26:49,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:26:49,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:26:49,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:26:49,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:26:49,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:26:49,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:26:49,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:26:49,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:26:49,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:26:49,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:26:49,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:26:49,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:26:49,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:26:49,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:26:49,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:26:49,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:26:49,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:26:49,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:26:49,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:26:49,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:26:49,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:26:49,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:26:49,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:26:49,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:26:49,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:26:49,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:26:49,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:26:49,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:26:49,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:26:49,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 04:26:49,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:26:49,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:26:49,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:26:49,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:26:49,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:26:49,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:26:49,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:26:49,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:26:49,835 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:26:49,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:26:49,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:26:49,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:26:49,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:26:49,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:26:49,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:26:49,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:26:49,839 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 04:26:49,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 04:26:49,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:26:49,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:26:49,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:26:49,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:26:49,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:26:49,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:26:49,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:26:49,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:49,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:26:49,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:26:49,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:26:49,843 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 04:26:49,843 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 04:26:49,843 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:26:49,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:26:49,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:26:49,845 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:26:49,845 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 04:26:49,845 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9ff936057be59b0f479a8c37fd17409fe797633e9a8a05703f5728379735d91 [2021-11-19 04:26:50,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:26:50,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:26:50,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:26:50,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:26:50,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:26:50,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-19 04:26:50,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/db5f26243/4ada06ce6711492c894d2c22f14736cb/FLAG4566528e4 [2021-11-19 04:26:51,156 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:26:51,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-11-19 04:26:51,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/db5f26243/4ada06ce6711492c894d2c22f14736cb/FLAG4566528e4 [2021-11-19 04:26:51,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/data/db5f26243/4ada06ce6711492c894d2c22f14736cb [2021-11-19 04:26:51,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:26:51,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:26:51,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:51,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:26:51,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:26:51,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:51,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56def9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51, skipping insertion in model container [2021-11-19 04:26:51,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:51,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:26:51,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:26:51,702 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_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-19 04:26:51,782 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:51,864 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:26:51,885 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_d463e6d4-36a9-477d-a279-6c3b514ec468/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[755,768] [2021-11-19 04:26:51,937 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:26:51,972 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:26:51,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51 WrapperNode [2021-11-19 04:26:51,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:26:51,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:51,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:26:51,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:26:51,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,061 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 146 [2021-11-19 04:26:52,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:26:52,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:26:52,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:26:52,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:26:52,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:26:52,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:26:52,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:26:52,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:26:52,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (1/1) ... [2021-11-19 04:26:52,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:26:52,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:26:52,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:26:52,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:26:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:26:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 04:26:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-19 04:26:52,273 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-19 04:26:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:26:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:26:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 04:26:52,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 04:26:52,420 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:26:52,422 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:26:52,913 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:26:52,929 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:26:52,929 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:26:52,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:52 BoogieIcfgContainer [2021-11-19 04:26:52,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:26:52,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:26:52,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:26:52,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:26:52,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:26:51" (1/3) ... [2021-11-19 04:26:52,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0faaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:52, skipping insertion in model container [2021-11-19 04:26:52,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:26:51" (2/3) ... [2021-11-19 04:26:52,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0faaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:26:52, skipping insertion in model container [2021-11-19 04:26:52,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:52" (3/3) ... [2021-11-19 04:26:52,945 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-11-19 04:26:52,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:26:52,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:26:53,025 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:26:53,035 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 [2021-11-19 04:26:53,036 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:26:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 60 states have (on average 1.6) internal successors, (96), 63 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:26:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 04:26:53,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:53,071 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:53,072 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:53,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:53,080 INFO L85 PathProgramCache]: Analyzing trace with hash -760882007, now seen corresponding path program 1 times [2021-11-19 04:26:53,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:53,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868089592] [2021-11-19 04:26:53,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:53,099 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:53,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:53,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:53,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 04:26:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:53,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:26:53,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:53,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:53,696 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:53,702 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:53,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868089592] [2021-11-19 04:26:53,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868089592] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:26:53,704 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:26:53,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-19 04:26:53,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202995915] [2021-11-19 04:26:53,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:26:53,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:53,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:53,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:53,763 INFO L87 Difference]: Start difference. First operand has 72 states, 60 states have (on average 1.6) internal successors, (96), 63 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:26:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:53,928 INFO L93 Difference]: Finished difference Result 194 states and 322 transitions. [2021-11-19 04:26:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:26:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2021-11-19 04:26:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:53,947 INFO L225 Difference]: With dead ends: 194 [2021-11-19 04:26:53,947 INFO L226 Difference]: Without dead ends: 117 [2021-11-19 04:26:53,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:53,958 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 62 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:53,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 758 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:26:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-11-19 04:26:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 80. [2021-11-19 04:26:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 66 states have (on average 1.4545454545454546) internal successors, (96), 68 states have internal predecessors, (96), 10 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (14), 10 states have call predecessors, (14), 9 states have call successors, (14) [2021-11-19 04:26:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 120 transitions. [2021-11-19 04:26:54,029 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 120 transitions. Word has length 32 [2021-11-19 04:26:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:54,030 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 120 transitions. [2021-11-19 04:26:54,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:26:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 120 transitions. [2021-11-19 04:26:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-19 04:26:54,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:54,036 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:54,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:54,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:54,251 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash 975798983, now seen corresponding path program 1 times [2021-11-19 04:26:54,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:54,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950465241] [2021-11-19 04:26:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:54,254 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:54,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:54,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:54,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 04:26:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:54,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:26:54,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:54,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:54,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:54,734 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:54,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950465241] [2021-11-19 04:26:54,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950465241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:54,737 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:54,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 04:26:54,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349907638] [2021-11-19 04:26:54,744 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:54,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:54,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:54,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:54,753 INFO L87 Difference]: Start difference. First operand 80 states and 120 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:54,941 INFO L93 Difference]: Finished difference Result 169 states and 257 transitions. [2021-11-19 04:26:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:26:54,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-19 04:26:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:54,950 INFO L225 Difference]: With dead ends: 169 [2021-11-19 04:26:54,953 INFO L226 Difference]: Without dead ends: 127 [2021-11-19 04:26:54,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:54,958 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 53 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:54,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 451 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:26:54,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-19 04:26:54,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2021-11-19 04:26:54,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 105 states have (on average 1.457142857142857) internal successors, (153), 106 states have internal predecessors, (153), 14 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (18), 16 states have call predecessors, (18), 13 states have call successors, (18) [2021-11-19 04:26:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 185 transitions. [2021-11-19 04:26:54,986 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 185 transitions. Word has length 36 [2021-11-19 04:26:55,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:55,006 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 185 transitions. [2021-11-19 04:26:55,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:55,007 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 185 transitions. [2021-11-19 04:26:55,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-19 04:26:55,010 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:55,010 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:26:55,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:55,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:55,217 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:55,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:55,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1655857353, now seen corresponding path program 1 times [2021-11-19 04:26:55,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:55,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903908881] [2021-11-19 04:26:55,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:55,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:55,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:55,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:55,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 04:26:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:55,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:26:55,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:55,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:55,581 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:55,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903908881] [2021-11-19 04:26:55,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903908881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:55,582 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:55,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-19 04:26:55,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140668425] [2021-11-19 04:26:55,583 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:55,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 04:26:55,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:55,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:26:55,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:55,586 INFO L87 Difference]: Start difference. First operand 123 states and 185 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:55,783 INFO L93 Difference]: Finished difference Result 180 states and 272 transitions. [2021-11-19 04:26:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:26:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2021-11-19 04:26:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:55,793 INFO L225 Difference]: With dead ends: 180 [2021-11-19 04:26:55,793 INFO L226 Difference]: Without dead ends: 141 [2021-11-19 04:26:55,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:26:55,802 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 105 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:55,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 536 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:26:55,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-19 04:26:55,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 114. [2021-11-19 04:26:55,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 99 states have internal predecessors, (141), 12 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (16), 14 states have call predecessors, (16), 11 states have call successors, (16) [2021-11-19 04:26:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2021-11-19 04:26:55,835 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 36 [2021-11-19 04:26:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:55,836 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2021-11-19 04:26:55,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:55,848 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2021-11-19 04:26:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-19 04:26:55,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:55,851 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:55,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:56,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:56,053 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -371678158, now seen corresponding path program 1 times [2021-11-19 04:26:56,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:56,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927778031] [2021-11-19 04:26:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:56,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:56,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:56,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:56,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 04:26:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:56,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:26:56,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:56,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:56,511 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:56,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927778031] [2021-11-19 04:26:56,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927778031] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:26:56,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:26:56,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-19 04:26:56,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267460812] [2021-11-19 04:26:56,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:26:56,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:26:56,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:26:56,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:56,515 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:26:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:56,794 INFO L93 Difference]: Finished difference Result 312 states and 474 transitions. [2021-11-19 04:26:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:26:56,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2021-11-19 04:26:56,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:56,801 INFO L225 Difference]: With dead ends: 312 [2021-11-19 04:26:56,802 INFO L226 Difference]: Without dead ends: 237 [2021-11-19 04:26:56,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:26:56,811 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 197 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:56,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 642 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 04:26:56,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-19 04:26:56,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 178. [2021-11-19 04:26:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 156 states have (on average 1.3846153846153846) internal successors, (216), 155 states have internal predecessors, (216), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (24), 24 states have call predecessors, (24), 17 states have call successors, (24) [2021-11-19 04:26:56,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 258 transitions. [2021-11-19 04:26:56,868 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 258 transitions. Word has length 40 [2021-11-19 04:26:56,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:56,871 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 258 transitions. [2021-11-19 04:26:56,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.625) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:26:56,872 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 258 transitions. [2021-11-19 04:26:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-19 04:26:56,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:56,883 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:56,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:57,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:57,105 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2082074321, now seen corresponding path program 1 times [2021-11-19 04:26:57,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:57,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563260027] [2021-11-19 04:26:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:57,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:57,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:57,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:57,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 04:26:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:57,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:26:57,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:57,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:57,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:57,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563260027] [2021-11-19 04:26:57,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563260027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:57,451 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:57,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:26:57,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651277537] [2021-11-19 04:26:57,451 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:57,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:57,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:57,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:57,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:26:57,455 INFO L87 Difference]: Start difference. First operand 178 states and 258 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:57,536 INFO L93 Difference]: Finished difference Result 358 states and 526 transitions. [2021-11-19 04:26:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:26:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2021-11-19 04:26:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:57,542 INFO L225 Difference]: With dead ends: 358 [2021-11-19 04:26:57,543 INFO L226 Difference]: Without dead ends: 292 [2021-11-19 04:26:57,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:26:57,546 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 115 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:57,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 474 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:26:57,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-11-19 04:26:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 242. [2021-11-19 04:26:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 220 states have (on average 1.3227272727272728) internal successors, (291), 217 states have internal predecessors, (291), 18 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (24), 24 states have call predecessors, (24), 17 states have call successors, (24) [2021-11-19 04:26:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 333 transitions. [2021-11-19 04:26:57,608 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 333 transitions. Word has length 43 [2021-11-19 04:26:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:57,609 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 333 transitions. [2021-11-19 04:26:57,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:57,609 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 333 transitions. [2021-11-19 04:26:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:57,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:57,614 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:57,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:57,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:57,826 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:57,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:57,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1563397194, now seen corresponding path program 1 times [2021-11-19 04:26:57,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:57,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750214271] [2021-11-19 04:26:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:57,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:57,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:57,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:57,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 04:26:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:57,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 04:26:57,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:58,221 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:26:58,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:58,506 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:58,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750214271] [2021-11-19 04:26:58,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750214271] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:26:58,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:26:58,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-11-19 04:26:58,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104491460] [2021-11-19 04:26:58,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:58,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:26:58,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:58,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:26:58,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:26:58,510 INFO L87 Difference]: Start difference. First operand 242 states and 333 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:59,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:59,248 INFO L93 Difference]: Finished difference Result 414 states and 593 transitions. [2021-11-19 04:26:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:26:59,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-19 04:26:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:59,253 INFO L225 Difference]: With dead ends: 414 [2021-11-19 04:26:59,253 INFO L226 Difference]: Without dead ends: 378 [2021-11-19 04:26:59,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:26:59,255 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 193 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:59,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 525 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 04:26:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-11-19 04:26:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 295. [2021-11-19 04:26:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 268 states have (on average 1.3097014925373134) internal successors, (351), 266 states have internal predecessors, (351), 23 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (29), 29 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-19 04:26:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 403 transitions. [2021-11-19 04:26:59,293 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 403 transitions. Word has length 44 [2021-11-19 04:26:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:59,294 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 403 transitions. [2021-11-19 04:26:59,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 403 transitions. [2021-11-19 04:26:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:59,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:59,298 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:26:59,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:26:59,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:26:59,513 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:26:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:26:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -956562740, now seen corresponding path program 1 times [2021-11-19 04:26:59,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:26:59,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237126481] [2021-11-19 04:26:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:26:59,514 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:26:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:26:59,516 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:26:59,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 04:26:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:26:59,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:26:59,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:26:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:59,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:26:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:26:59,860 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:26:59,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237126481] [2021-11-19 04:26:59,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237126481] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:26:59,864 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:26:59,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 04:26:59,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451037251] [2021-11-19 04:26:59,865 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:26:59,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:26:59,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:26:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:26:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:26:59,868 INFO L87 Difference]: Start difference. First operand 295 states and 403 transitions. Second operand has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:59,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:26:59,936 INFO L93 Difference]: Finished difference Result 302 states and 409 transitions. [2021-11-19 04:26:59,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:26:59,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-19 04:26:59,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:26:59,943 INFO L225 Difference]: With dead ends: 302 [2021-11-19 04:26:59,946 INFO L226 Difference]: Without dead ends: 295 [2021-11-19 04:26:59,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:26:59,949 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 6 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:26:59,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 674 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:26:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-19 04:26:59,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-11-19 04:26:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 268 states have (on average 1.2985074626865671) internal successors, (348), 266 states have internal predecessors, (348), 23 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (29), 29 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-19 04:26:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 400 transitions. [2021-11-19 04:26:59,979 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 400 transitions. Word has length 44 [2021-11-19 04:26:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:26:59,979 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 400 transitions. [2021-11-19 04:26:59,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:26:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 400 transitions. [2021-11-19 04:26:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 04:26:59,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:26:59,984 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:26:59,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:00,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:00,200 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash -3100185, now seen corresponding path program 2 times [2021-11-19 04:27:00,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:00,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381004042] [2021-11-19 04:27:00,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:27:00,201 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:00,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:00,203 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:00,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 04:27:00,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:27:00,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:27:00,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:27:00,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:00,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:00,788 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:00,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:00,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381004042] [2021-11-19 04:27:00,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381004042] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:00,789 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:00,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:27:00,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712594429] [2021-11-19 04:27:00,789 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:00,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:27:00,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:27:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:27:00,791 INFO L87 Difference]: Start difference. First operand 295 states and 400 transitions. Second operand has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:01,172 INFO L93 Difference]: Finished difference Result 452 states and 628 transitions. [2021-11-19 04:27:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:27:01,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-19 04:27:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:01,181 INFO L225 Difference]: With dead ends: 452 [2021-11-19 04:27:01,181 INFO L226 Difference]: Without dead ends: 450 [2021-11-19 04:27:01,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:27:01,183 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 123 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:01,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1207 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 99 Invalid, 0 Unknown, 21 Unchecked, 0.2s Time] [2021-11-19 04:27:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2021-11-19 04:27:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 299. [2021-11-19 04:27:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 271 states have (on average 1.2952029520295203) internal successors, (351), 269 states have internal predecessors, (351), 23 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (29), 29 states have call predecessors, (29), 22 states have call successors, (29) [2021-11-19 04:27:01,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 403 transitions. [2021-11-19 04:27:01,227 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 403 transitions. Word has length 44 [2021-11-19 04:27:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:01,228 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 403 transitions. [2021-11-19 04:27:01,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 403 transitions. [2021-11-19 04:27:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-19 04:27:01,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:01,232 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:01,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:01,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:01,437 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:01,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:01,437 INFO L85 PathProgramCache]: Analyzing trace with hash 561980754, now seen corresponding path program 1 times [2021-11-19 04:27:01,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:01,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323537562] [2021-11-19 04:27:01,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:01,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:01,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:01,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 04:27:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:01,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:01,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:01,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:01,787 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:01,787 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:01,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323537562] [2021-11-19 04:27:01,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323537562] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:01,788 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:01,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:27:01,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962475860] [2021-11-19 04:27:01,788 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:01,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:27:01,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:01,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:27:01,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:01,790 INFO L87 Difference]: Start difference. First operand 299 states and 403 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:01,885 INFO L93 Difference]: Finished difference Result 648 states and 872 transitions. [2021-11-19 04:27:01,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:27:01,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-11-19 04:27:01,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:01,892 INFO L225 Difference]: With dead ends: 648 [2021-11-19 04:27:01,892 INFO L226 Difference]: Without dead ends: 596 [2021-11-19 04:27:01,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:01,894 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 93 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:01,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 501 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:27:01,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2021-11-19 04:27:01,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 318. [2021-11-19 04:27:01,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 289 states have (on average 1.2975778546712802) internal successors, (375), 286 states have internal predecessors, (375), 24 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2021-11-19 04:27:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 429 transitions. [2021-11-19 04:27:01,931 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 429 transitions. Word has length 45 [2021-11-19 04:27:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:01,932 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 429 transitions. [2021-11-19 04:27:01,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 429 transitions. [2021-11-19 04:27:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-19 04:27:01,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:01,935 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:01,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:02,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:02,149 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2079579127, now seen corresponding path program 1 times [2021-11-19 04:27:02,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:02,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076411299] [2021-11-19 04:27:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:02,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:02,152 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:02,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 04:27:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:02,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:02,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:02,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:02,425 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:02,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076411299] [2021-11-19 04:27:02,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076411299] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:02,426 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:02,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 04:27:02,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259769832] [2021-11-19 04:27:02,427 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:02,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:27:02,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:27:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:27:02,429 INFO L87 Difference]: Start difference. First operand 318 states and 429 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:02,474 INFO L93 Difference]: Finished difference Result 333 states and 445 transitions. [2021-11-19 04:27:02,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:27:02,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2021-11-19 04:27:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:02,478 INFO L225 Difference]: With dead ends: 333 [2021-11-19 04:27:02,479 INFO L226 Difference]: Without dead ends: 272 [2021-11-19 04:27:02,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:02,480 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 1 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:02,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 288 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:27:02,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-19 04:27:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2021-11-19 04:27:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 242 states have internal predecessors, (319), 24 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (28), 28 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-19 04:27:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 371 transitions. [2021-11-19 04:27:02,525 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 371 transitions. Word has length 48 [2021-11-19 04:27:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:02,525 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 371 transitions. [2021-11-19 04:27:02,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 371 transitions. [2021-11-19 04:27:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 04:27:02,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:02,528 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:02,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:02,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:02,743 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:02,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1609971577, now seen corresponding path program 1 times [2021-11-19 04:27:02,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:02,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128178829] [2021-11-19 04:27:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:02,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:02,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:02,747 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:02,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 04:27:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:02,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:27:02,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:02,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:03,093 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:03,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128178829] [2021-11-19 04:27:03,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128178829] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:03,093 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:03,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 04:27:03,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490713862] [2021-11-19 04:27:03,094 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:03,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:27:03,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:03,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:27:03,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:03,096 INFO L87 Difference]: Start difference. First operand 272 states and 371 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:03,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:03,290 INFO L93 Difference]: Finished difference Result 424 states and 576 transitions. [2021-11-19 04:27:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:27:03,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2021-11-19 04:27:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:03,295 INFO L225 Difference]: With dead ends: 424 [2021-11-19 04:27:03,296 INFO L226 Difference]: Without dead ends: 382 [2021-11-19 04:27:03,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:27:03,298 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 171 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:03,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 479 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-19 04:27:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 272. [2021-11-19 04:27:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 243 states have (on average 1.3045267489711934) internal successors, (317), 242 states have internal predecessors, (317), 24 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (28), 28 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-19 04:27:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 369 transitions. [2021-11-19 04:27:03,332 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 369 transitions. Word has length 49 [2021-11-19 04:27:03,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:03,332 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 369 transitions. [2021-11-19 04:27:03,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:03,333 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 369 transitions. [2021-11-19 04:27:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-19 04:27:03,335 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:03,335 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:03,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:03,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:03,550 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:03,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:03,550 INFO L85 PathProgramCache]: Analyzing trace with hash -908906999, now seen corresponding path program 1 times [2021-11-19 04:27:03,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:03,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949574927] [2021-11-19 04:27:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:03,551 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:03,553 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:03,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 04:27:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:03,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:27:03,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:03,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:03,884 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:03,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1949574927] [2021-11-19 04:27:03,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1949574927] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:03,885 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:03,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 04:27:03,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478052024] [2021-11-19 04:27:03,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:03,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:27:03,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:03,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:27:03,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:27:03,888 INFO L87 Difference]: Start difference. First operand 272 states and 369 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:04,020 INFO L93 Difference]: Finished difference Result 440 states and 582 transitions. [2021-11-19 04:27:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:27:04,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2021-11-19 04:27:04,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:04,024 INFO L225 Difference]: With dead ends: 440 [2021-11-19 04:27:04,025 INFO L226 Difference]: Without dead ends: 406 [2021-11-19 04:27:04,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:04,026 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 86 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:04,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 329 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-11-19 04:27:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 280. [2021-11-19 04:27:04,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 251 states have (on average 1.298804780876494) internal successors, (326), 250 states have internal predecessors, (326), 24 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (28), 28 states have call predecessors, (28), 23 states have call successors, (28) [2021-11-19 04:27:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 378 transitions. [2021-11-19 04:27:04,061 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 378 transitions. Word has length 49 [2021-11-19 04:27:04,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:04,062 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 378 transitions. [2021-11-19 04:27:04,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 378 transitions. [2021-11-19 04:27:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 04:27:04,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:04,065 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:04,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:04,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:04,279 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1552744902, now seen corresponding path program 1 times [2021-11-19 04:27:04,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:04,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525309582] [2021-11-19 04:27:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:04,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:04,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:04,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:04,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 04:27:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:04,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:27:04,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:04,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:04,758 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:04,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525309582] [2021-11-19 04:27:04,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525309582] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:04,758 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:04,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 04:27:04,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567632293] [2021-11-19 04:27:04,759 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:04,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 04:27:04,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:04,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:27:04,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:27:04,760 INFO L87 Difference]: Start difference. First operand 280 states and 378 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:06,650 INFO L93 Difference]: Finished difference Result 598 states and 826 transitions. [2021-11-19 04:27:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 04:27:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2021-11-19 04:27:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:06,657 INFO L225 Difference]: With dead ends: 598 [2021-11-19 04:27:06,657 INFO L226 Difference]: Without dead ends: 574 [2021-11-19 04:27:06,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=583, Unknown=0, NotChecked=0, Total=756 [2021-11-19 04:27:06,661 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 607 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:06,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 881 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 04:27:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-19 04:27:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 339. [2021-11-19 04:27:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 302 states have (on average 1.294701986754967) internal successors, (391), 303 states have internal predecessors, (391), 32 states have call successors, (32), 3 states have call predecessors, (32), 4 states have return successors, (36), 36 states have call predecessors, (36), 31 states have call successors, (36) [2021-11-19 04:27:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 459 transitions. [2021-11-19 04:27:06,722 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 459 transitions. Word has length 50 [2021-11-19 04:27:06,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:06,722 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 459 transitions. [2021-11-19 04:27:06,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:06,723 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 459 transitions. [2021-11-19 04:27:06,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 04:27:06,725 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:06,725 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:06,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:06,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:06,944 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:06,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:06,944 INFO L85 PathProgramCache]: Analyzing trace with hash -963972016, now seen corresponding path program 1 times [2021-11-19 04:27:06,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:06,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473280692] [2021-11-19 04:27:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:06,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:06,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:06,946 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:06,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 04:27:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:07,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:27:07,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:27:07,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-19 04:27:07,385 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:07,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473280692] [2021-11-19 04:27:07,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473280692] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:27:07,386 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:27:07,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-19 04:27:07,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929297658] [2021-11-19 04:27:07,386 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:27:07,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 04:27:07,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:07,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:27:07,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:07,388 INFO L87 Difference]: Start difference. First operand 339 states and 459 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:27:07,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:07,592 INFO L93 Difference]: Finished difference Result 583 states and 786 transitions. [2021-11-19 04:27:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:27:07,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2021-11-19 04:27:07,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:07,598 INFO L225 Difference]: With dead ends: 583 [2021-11-19 04:27:07,598 INFO L226 Difference]: Without dead ends: 554 [2021-11-19 04:27:07,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:27:07,600 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 109 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:07,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 819 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:07,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2021-11-19 04:27:07,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 367. [2021-11-19 04:27:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 327 states have (on average 1.2874617737003058) internal successors, (421), 328 states have internal predecessors, (421), 35 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (39), 39 states have call predecessors, (39), 34 states have call successors, (39) [2021-11-19 04:27:07,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 495 transitions. [2021-11-19 04:27:07,650 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 495 transitions. Word has length 50 [2021-11-19 04:27:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:07,651 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 495 transitions. [2021-11-19 04:27:07,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:27:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 495 transitions. [2021-11-19 04:27:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 04:27:07,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:07,654 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:07,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:07,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:07,874 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1182826734, now seen corresponding path program 1 times [2021-11-19 04:27:07,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:07,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863492553] [2021-11-19 04:27:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:07,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:07,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:07,877 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:07,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 04:27:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:07,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:07,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:08,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:08,197 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:08,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863492553] [2021-11-19 04:27:08,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863492553] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:08,198 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:08,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:27:08,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084686656] [2021-11-19 04:27:08,199 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:08,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:27:08,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:08,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:27:08,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:08,201 INFO L87 Difference]: Start difference. First operand 367 states and 495 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:08,284 INFO L93 Difference]: Finished difference Result 433 states and 578 transitions. [2021-11-19 04:27:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:27:08,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2021-11-19 04:27:08,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:08,288 INFO L225 Difference]: With dead ends: 433 [2021-11-19 04:27:08,289 INFO L226 Difference]: Without dead ends: 396 [2021-11-19 04:27:08,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:08,292 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 138 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:08,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 378 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:27:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-19 04:27:08,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 371. [2021-11-19 04:27:08,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 331 states have (on average 1.2537764350453173) internal successors, (415), 332 states have internal predecessors, (415), 35 states have call successors, (35), 3 states have call predecessors, (35), 4 states have return successors, (39), 39 states have call predecessors, (39), 34 states have call successors, (39) [2021-11-19 04:27:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 489 transitions. [2021-11-19 04:27:08,349 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 489 transitions. Word has length 50 [2021-11-19 04:27:08,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:08,350 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 489 transitions. [2021-11-19 04:27:08,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 489 transitions. [2021-11-19 04:27:08,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 04:27:08,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:08,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:08,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:08,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:08,569 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:08,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:08,569 INFO L85 PathProgramCache]: Analyzing trace with hash -767329765, now seen corresponding path program 1 times [2021-11-19 04:27:08,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:08,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364883929] [2021-11-19 04:27:08,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:08,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:08,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:08,571 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 04:27:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:08,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:08,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:08,771 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:27:08,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:27:08,915 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:08,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364883929] [2021-11-19 04:27:08,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364883929] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 04:27:08,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:27:08,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-19 04:27:08,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743639700] [2021-11-19 04:27:08,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:08,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:27:08,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:27:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:08,917 INFO L87 Difference]: Start difference. First operand 371 states and 489 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:27:09,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:09,022 INFO L93 Difference]: Finished difference Result 626 states and 822 transitions. [2021-11-19 04:27:09,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:27:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2021-11-19 04:27:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:09,027 INFO L225 Difference]: With dead ends: 626 [2021-11-19 04:27:09,027 INFO L226 Difference]: Without dead ends: 258 [2021-11-19 04:27:09,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:09,030 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 25 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:09,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 238 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-19 04:27:09,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2021-11-19 04:27:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 214 states have (on average 1.219626168224299) internal successors, (261), 219 states have internal predecessors, (261), 26 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (29), 27 states have call predecessors, (29), 25 states have call successors, (29) [2021-11-19 04:27:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 316 transitions. [2021-11-19 04:27:09,062 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 316 transitions. Word has length 50 [2021-11-19 04:27:09,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:09,063 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 316 transitions. [2021-11-19 04:27:09,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 04:27:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 316 transitions. [2021-11-19 04:27:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 04:27:09,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:09,073 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:09,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:09,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:09,292 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1332385442, now seen corresponding path program 1 times [2021-11-19 04:27:09,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:09,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041210166] [2021-11-19 04:27:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:09,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:09,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:09,295 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:09,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 04:27:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:09,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:09,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:09,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:09,596 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:09,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041210166] [2021-11-19 04:27:09,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041210166] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:09,597 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:09,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-19 04:27:09,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49084080] [2021-11-19 04:27:09,598 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:09,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:27:09,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:09,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:27:09,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:27:09,600 INFO L87 Difference]: Start difference. First operand 246 states and 316 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:09,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:09,650 INFO L93 Difference]: Finished difference Result 255 states and 324 transitions. [2021-11-19 04:27:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:27:09,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2021-11-19 04:27:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:09,657 INFO L225 Difference]: With dead ends: 255 [2021-11-19 04:27:09,658 INFO L226 Difference]: Without dead ends: 214 [2021-11-19 04:27:09,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:27:09,660 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:09,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 279 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:27:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-19 04:27:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 202. [2021-11-19 04:27:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 174 states have (on average 1.2298850574712643) internal successors, (214), 180 states have internal predecessors, (214), 22 states have call successors, (22), 3 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 20 states have call successors, (22) [2021-11-19 04:27:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 258 transitions. [2021-11-19 04:27:09,691 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 258 transitions. Word has length 52 [2021-11-19 04:27:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:09,691 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 258 transitions. [2021-11-19 04:27:09,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:09,692 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 258 transitions. [2021-11-19 04:27:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-19 04:27:09,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:09,693 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-19 04:27:09,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:09,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:09,907 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash -444512686, now seen corresponding path program 1 times [2021-11-19 04:27:09,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:09,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080409084] [2021-11-19 04:27:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:09,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:09,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:09,910 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:09,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 04:27:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:09,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:27:09,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:10,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:10,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-19 04:27:10,355 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:10,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080409084] [2021-11-19 04:27:10,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080409084] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:10,356 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:10,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:27:10,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438354818] [2021-11-19 04:27:10,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:10,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:27:10,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:10,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:27:10,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:27:10,358 INFO L87 Difference]: Start difference. First operand 202 states and 258 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:11,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:11,582 INFO L93 Difference]: Finished difference Result 440 states and 559 transitions. [2021-11-19 04:27:11,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 04:27:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2021-11-19 04:27:11,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:11,587 INFO L225 Difference]: With dead ends: 440 [2021-11-19 04:27:11,587 INFO L226 Difference]: Without dead ends: 375 [2021-11-19 04:27:11,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:27:11,590 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 339 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:11,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 639 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 04:27:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-19 04:27:11,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 183. [2021-11-19 04:27:11,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 156 states have (on average 1.2179487179487178) internal successors, (190), 160 states have internal predecessors, (190), 22 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 04:27:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 232 transitions. [2021-11-19 04:27:11,618 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 232 transitions. Word has length 52 [2021-11-19 04:27:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:11,619 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 232 transitions. [2021-11-19 04:27:11,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-19 04:27:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 232 transitions. [2021-11-19 04:27:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-19 04:27:11,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:11,621 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:11,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:11,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:11,835 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:11,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:11,835 INFO L85 PathProgramCache]: Analyzing trace with hash 147478644, now seen corresponding path program 1 times [2021-11-19 04:27:11,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:11,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690697372] [2021-11-19 04:27:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:11,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:11,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:11,837 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:11,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 04:27:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:11,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:27:11,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:12,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:12,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:12,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690697372] [2021-11-19 04:27:12,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690697372] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:12,821 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:12,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 04:27:12,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559174491] [2021-11-19 04:27:12,822 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:12,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 04:27:12,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:12,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 04:27:12,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:27:12,824 INFO L87 Difference]: Start difference. First operand 183 states and 232 transitions. Second operand has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:27:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:12,895 INFO L93 Difference]: Finished difference Result 192 states and 243 transitions. [2021-11-19 04:27:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:27:12,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 54 [2021-11-19 04:27:12,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:12,898 INFO L225 Difference]: With dead ends: 192 [2021-11-19 04:27:12,899 INFO L226 Difference]: Without dead ends: 190 [2021-11-19 04:27:12,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-19 04:27:12,900 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 8 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:12,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 750 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time] [2021-11-19 04:27:12,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-19 04:27:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-19 04:27:12,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 166 states have internal predecessors, (193), 25 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-19 04:27:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 241 transitions. [2021-11-19 04:27:12,946 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 241 transitions. Word has length 54 [2021-11-19 04:27:12,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:12,946 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 241 transitions. [2021-11-19 04:27:12,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:27:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 241 transitions. [2021-11-19 04:27:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 04:27:12,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:12,949 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:12,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:13,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:13,163 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:13,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:13,164 INFO L85 PathProgramCache]: Analyzing trace with hash -36563148, now seen corresponding path program 1 times [2021-11-19 04:27:13,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:13,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1931295] [2021-11-19 04:27:13,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:13,165 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:13,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:13,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:13,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 04:27:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:13,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:27:13,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:21,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:22,160 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:22,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:22,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1931295] [2021-11-19 04:27:22,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1931295] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:22,161 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:22,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-19 04:27:22,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955542593] [2021-11-19 04:27:22,162 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:22,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 04:27:22,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:22,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 04:27:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=135, Unknown=4, NotChecked=0, Total=182 [2021-11-19 04:27:22,164 INFO L87 Difference]: Start difference. First operand 190 states and 241 transitions. Second operand has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:27:22,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:22,285 INFO L93 Difference]: Finished difference Result 219 states and 274 transitions. [2021-11-19 04:27:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:27:22,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 55 [2021-11-19 04:27:22,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:22,289 INFO L225 Difference]: With dead ends: 219 [2021-11-19 04:27:22,289 INFO L226 Difference]: Without dead ends: 217 [2021-11-19 04:27:22,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=49, Invalid=157, Unknown=4, NotChecked=0, Total=210 [2021-11-19 04:27:22,291 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 70 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:22,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 1206 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 51 Unchecked, 0.1s Time] [2021-11-19 04:27:22,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-19 04:27:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 187. [2021-11-19 04:27:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 159 states have (on average 1.2138364779874213) internal successors, (193), 163 states have internal predecessors, (193), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 04:27:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 235 transitions. [2021-11-19 04:27:22,317 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 235 transitions. Word has length 55 [2021-11-19 04:27:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:22,318 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 235 transitions. [2021-11-19 04:27:22,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 5 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-19 04:27:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 235 transitions. [2021-11-19 04:27:22,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 04:27:22,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:22,320 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:22,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:22,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:22,535 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 589240327, now seen corresponding path program 1 times [2021-11-19 04:27:22,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:22,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403799502] [2021-11-19 04:27:22,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:22,536 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:22,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:22,537 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:22,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 04:27:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:22,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:27:22,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:22,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-19 04:27:23,022 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:23,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403799502] [2021-11-19 04:27:23,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403799502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:23,023 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:23,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:27:23,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94961272] [2021-11-19 04:27:23,023 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:23,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:27:23,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:23,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:27:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:27:23,025 INFO L87 Difference]: Start difference. First operand 187 states and 235 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 04:27:23,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:23,186 INFO L93 Difference]: Finished difference Result 217 states and 266 transitions. [2021-11-19 04:27:23,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:27:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 60 [2021-11-19 04:27:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:23,189 INFO L225 Difference]: With dead ends: 217 [2021-11-19 04:27:23,190 INFO L226 Difference]: Without dead ends: 215 [2021-11-19 04:27:23,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:27:23,191 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 68 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:23,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 700 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:23,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-19 04:27:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 191. [2021-11-19 04:27:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 162 states have (on average 1.2098765432098766) internal successors, (196), 166 states have internal predecessors, (196), 22 states have call successors, (22), 5 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-19 04:27:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 238 transitions. [2021-11-19 04:27:23,223 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 238 transitions. Word has length 60 [2021-11-19 04:27:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:23,223 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 238 transitions. [2021-11-19 04:27:23,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-19 04:27:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 238 transitions. [2021-11-19 04:27:23,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 04:27:23,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:23,227 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:23,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:23,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:23,442 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 921322142, now seen corresponding path program 1 times [2021-11-19 04:27:23,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:23,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996333548] [2021-11-19 04:27:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:23,443 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:23,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:23,444 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:23,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 04:27:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:23,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 04:27:23,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:25,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:27,595 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:27,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996333548] [2021-11-19 04:27:27,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996333548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:27,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:27,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-19 04:27:27,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45298965] [2021-11-19 04:27:27,596 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:27,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 04:27:27,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:27,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 04:27:27,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-11-19 04:27:27,598 INFO L87 Difference]: Start difference. First operand 191 states and 238 transitions. Second operand has 24 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:29,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:29,320 INFO L93 Difference]: Finished difference Result 417 states and 523 transitions. [2021-11-19 04:27:29,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 04:27:29,322 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 65 [2021-11-19 04:27:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:29,325 INFO L225 Difference]: With dead ends: 417 [2021-11-19 04:27:29,325 INFO L226 Difference]: Without dead ends: 389 [2021-11-19 04:27:29,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 04:27:29,327 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 232 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 539 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:29,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1209 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 214 Invalid, 0 Unknown, 539 Unchecked, 0.5s Time] [2021-11-19 04:27:29,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-11-19 04:27:29,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 199. [2021-11-19 04:27:29,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 169 states have (on average 1.21301775147929) internal successors, (205), 173 states have internal predecessors, (205), 23 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-19 04:27:29,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 249 transitions. [2021-11-19 04:27:29,358 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 249 transitions. Word has length 65 [2021-11-19 04:27:29,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:29,359 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 249 transitions. [2021-11-19 04:27:29,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.25) internal successors, (54), 24 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 249 transitions. [2021-11-19 04:27:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 04:27:29,361 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:29,361 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:29,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:29,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:29,576 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1450417120, now seen corresponding path program 1 times [2021-11-19 04:27:29,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:29,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398439822] [2021-11-19 04:27:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:29,577 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:29,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:29,578 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:29,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 04:27:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:29,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:27:29,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:30,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:31,443 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:31,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398439822] [2021-11-19 04:27:31,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398439822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:31,444 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:31,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 04:27:31,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110932180] [2021-11-19 04:27:31,444 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:31,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 04:27:31,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:27:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:27:31,447 INFO L87 Difference]: Start difference. First operand 199 states and 249 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:32,914 INFO L93 Difference]: Finished difference Result 320 states and 400 transitions. [2021-11-19 04:27:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 04:27:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 65 [2021-11-19 04:27:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:32,918 INFO L225 Difference]: With dead ends: 320 [2021-11-19 04:27:32,919 INFO L226 Difference]: Without dead ends: 292 [2021-11-19 04:27:32,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:27:32,920 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 187 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 321 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:32,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 871 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 228 Invalid, 0 Unknown, 321 Unchecked, 0.6s Time] [2021-11-19 04:27:32,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-11-19 04:27:32,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 198. [2021-11-19 04:27:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 168 states have (on average 1.2083333333333333) internal successors, (203), 172 states have internal predecessors, (203), 23 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-19 04:27:32,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2021-11-19 04:27:32,955 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 65 [2021-11-19 04:27:32,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:32,955 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2021-11-19 04:27:32,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:32,956 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2021-11-19 04:27:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-19 04:27:32,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:32,958 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:32,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:33,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:33,172 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:33,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -957629534, now seen corresponding path program 1 times [2021-11-19 04:27:33,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:33,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003621753] [2021-11-19 04:27:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:33,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:33,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:33,175 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:33,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 04:27:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:33,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-19 04:27:33,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:35,097 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 04:27:35,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 04:27:37,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:37,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1003621753] [2021-11-19 04:27:37,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1003621753] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:27:37,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:27:37,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-11-19 04:27:37,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993904457] [2021-11-19 04:27:37,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:27:37,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 04:27:37,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:37,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 04:27:37,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-11-19 04:27:37,291 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:37,779 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2021-11-19 04:27:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-19 04:27:37,780 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 66 [2021-11-19 04:27:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:37,783 INFO L225 Difference]: With dead ends: 274 [2021-11-19 04:27:37,783 INFO L226 Difference]: Without dead ends: 246 [2021-11-19 04:27:37,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2021-11-19 04:27:37,785 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 25 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:37,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1244 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 191 Unchecked, 0.1s Time] [2021-11-19 04:27:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-19 04:27:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 179. [2021-11-19 04:27:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 153 states have (on average 1.2026143790849673) internal successors, (184), 157 states have internal predecessors, (184), 19 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-19 04:27:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 220 transitions. [2021-11-19 04:27:37,815 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 220 transitions. Word has length 66 [2021-11-19 04:27:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:37,815 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 220 transitions. [2021-11-19 04:27:37,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 220 transitions. [2021-11-19 04:27:37,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-19 04:27:37,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:37,818 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:27:37,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:38,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:38,032 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:38,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1041931164, now seen corresponding path program 1 times [2021-11-19 04:27:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:38,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327492064] [2021-11-19 04:27:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:38,033 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:38,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:38,034 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:38,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 04:27:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:38,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 04:27:38,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 04:27:38,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 04:27:39,290 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:39,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327492064] [2021-11-19 04:27:39,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327492064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:27:39,291 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:27:39,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-11-19 04:27:39,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860338869] [2021-11-19 04:27:39,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:27:39,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 04:27:39,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 04:27:39,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2021-11-19 04:27:39,292 INFO L87 Difference]: Start difference. First operand 179 states and 220 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 04:27:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:39,599 INFO L93 Difference]: Finished difference Result 208 states and 247 transitions. [2021-11-19 04:27:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:27:39,600 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 67 [2021-11-19 04:27:39,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:39,601 INFO L225 Difference]: With dead ends: 208 [2021-11-19 04:27:39,601 INFO L226 Difference]: Without dead ends: 155 [2021-11-19 04:27:39,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=609, Unknown=0, NotChecked=0, Total=702 [2021-11-19 04:27:39,602 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 44 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 92 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:39,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 1307 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 92 Unchecked, 0.2s Time] [2021-11-19 04:27:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-19 04:27:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-19 04:27:39,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 131 states have (on average 1.1984732824427482) internal successors, (157), 135 states have internal predecessors, (157), 17 states have call successors, (17), 5 states have call predecessors, (17), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-19 04:27:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2021-11-19 04:27:39,634 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 67 [2021-11-19 04:27:39,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:39,635 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2021-11-19 04:27:39,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 20 states have internal predecessors, (70), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 04:27:39,636 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2021-11-19 04:27:39,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 04:27:39,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:39,638 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:39,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:39,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:39,852 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:39,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1151744600, now seen corresponding path program 1 times [2021-11-19 04:27:39,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:39,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859496116] [2021-11-19 04:27:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:39,854 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:39,855 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:39,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 04:27:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:39,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:27:39,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:40,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:40,217 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:40,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859496116] [2021-11-19 04:27:40,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1859496116] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:40,217 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:40,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 04:27:40,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185438883] [2021-11-19 04:27:40,217 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:40,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:27:40,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:27:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:27:40,219 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 04:27:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:40,379 INFO L93 Difference]: Finished difference Result 175 states and 208 transitions. [2021-11-19 04:27:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:27:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 68 [2021-11-19 04:27:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:40,381 INFO L225 Difference]: With dead ends: 175 [2021-11-19 04:27:40,382 INFO L226 Difference]: Without dead ends: 149 [2021-11-19 04:27:40,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:27:40,383 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 29 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:40,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 575 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:27:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-19 04:27:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 132. [2021-11-19 04:27:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.1727272727272726) internal successors, (129), 114 states have internal predecessors, (129), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 04:27:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2021-11-19 04:27:40,405 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 68 [2021-11-19 04:27:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:40,405 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2021-11-19 04:27:40,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-19 04:27:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2021-11-19 04:27:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 04:27:40,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:40,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:40,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:40,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:40,622 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:40,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1565040980, now seen corresponding path program 1 times [2021-11-19 04:27:40,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:40,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960309781] [2021-11-19 04:27:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:40,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:40,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:40,624 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:40,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 04:27:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:40,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:27:40,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:40,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:41,008 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:41,008 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:41,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960309781] [2021-11-19 04:27:41,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960309781] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:41,009 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:41,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 04:27:41,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130584071] [2021-11-19 04:27:41,009 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:41,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:27:41,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:41,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:27:41,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:27:41,010 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-19 04:27:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:41,078 INFO L93 Difference]: Finished difference Result 158 states and 182 transitions. [2021-11-19 04:27:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:27:41,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2021-11-19 04:27:41,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:41,092 INFO L225 Difference]: With dead ends: 158 [2021-11-19 04:27:41,092 INFO L226 Difference]: Without dead ends: 111 [2021-11-19 04:27:41,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:27:41,093 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 55 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:41,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 304 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:27:41,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-19 04:27:41,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2021-11-19 04:27:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.1538461538461537) internal successors, (105), 93 states have internal predecessors, (105), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:27:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2021-11-19 04:27:41,111 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 70 [2021-11-19 04:27:41,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:41,112 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2021-11-19 04:27:41,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-19 04:27:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2021-11-19 04:27:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 04:27:41,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:41,114 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:41,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (28)] Ended with exit code 0 [2021-11-19 04:27:41,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:41,328 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:41,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1885920814, now seen corresponding path program 1 times [2021-11-19 04:27:41,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:41,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586664085] [2021-11-19 04:27:41,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:41,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:41,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:41,330 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:41,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 04:27:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:41,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 04:27:41,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-19 04:27:41,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-11-19 04:27:43,554 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:43,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586664085] [2021-11-19 04:27:43,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586664085] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:27:43,555 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:27:43,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13] total 19 [2021-11-19 04:27:43,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140238623] [2021-11-19 04:27:43,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:27:43,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-19 04:27:43,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:43,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-19 04:27:43,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-11-19 04:27:43,556 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 17 states have internal predecessors, (69), 5 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-19 04:27:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:44,190 INFO L93 Difference]: Finished difference Result 159 states and 178 transitions. [2021-11-19 04:27:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 04:27:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 17 states have internal predecessors, (69), 5 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 70 [2021-11-19 04:27:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:44,192 INFO L225 Difference]: With dead ends: 159 [2021-11-19 04:27:44,192 INFO L226 Difference]: Without dead ends: 111 [2021-11-19 04:27:44,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2021-11-19 04:27:44,194 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 41 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:44,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 1006 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 75 Unchecked, 0.4s Time] [2021-11-19 04:27:44,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-19 04:27:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2021-11-19 04:27:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.1428571428571428) internal successors, (104), 93 states have internal predecessors, (104), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:27:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2021-11-19 04:27:44,208 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 70 [2021-11-19 04:27:44,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:44,209 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2021-11-19 04:27:44,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 17 states have internal predecessors, (69), 5 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-19 04:27:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2021-11-19 04:27:44,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 04:27:44,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:44,211 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-19 04:27:44,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:44,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:44,420 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:44,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2134286868, now seen corresponding path program 1 times [2021-11-19 04:27:44,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:44,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141678529] [2021-11-19 04:27:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:44,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:44,423 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:44,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 04:27:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:44,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:27:44,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:45,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:27:46,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:46,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141678529] [2021-11-19 04:27:46,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141678529] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:46,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:46,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 04:27:46,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648048935] [2021-11-19 04:27:46,344 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:46,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 04:27:46,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:27:46,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:27:46,346 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:47,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:47,464 INFO L93 Difference]: Finished difference Result 158 states and 181 transitions. [2021-11-19 04:27:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 04:27:47,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 70 [2021-11-19 04:27:47,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:47,466 INFO L225 Difference]: With dead ends: 158 [2021-11-19 04:27:47,466 INFO L226 Difference]: Without dead ends: 148 [2021-11-19 04:27:47,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2021-11-19 04:27:47,467 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 61 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 149 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:47,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 653 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 149 Unchecked, 0.3s Time] [2021-11-19 04:27:47,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-19 04:27:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2021-11-19 04:27:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 99 states have (on average 1.1313131313131313) internal successors, (112), 101 states have internal predecessors, (112), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-19 04:27:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 132 transitions. [2021-11-19 04:27:47,502 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 132 transitions. Word has length 70 [2021-11-19 04:27:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:47,502 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 132 transitions. [2021-11-19 04:27:47,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.388888888888889) internal successors, (61), 18 states have internal predecessors, (61), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-11-19 04:27:47,503 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 132 transitions. [2021-11-19 04:27:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-19 04:27:47,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:47,505 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2021-11-19 04:27:47,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:47,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:47,718 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:47,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2093027486, now seen corresponding path program 1 times [2021-11-19 04:27:47,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:47,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900439475] [2021-11-19 04:27:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:47,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:47,721 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:47,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 04:27:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:47,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 04:27:47,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 04:27:48,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 04:27:48,794 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:48,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900439475] [2021-11-19 04:27:48,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900439475] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:27:48,795 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 04:27:48,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-11-19 04:27:48,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011540883] [2021-11-19 04:27:48,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 04:27:48,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 04:27:48,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:48,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 04:27:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-19 04:27:48,798 INFO L87 Difference]: Start difference. First operand 116 states and 132 transitions. Second operand has 20 states, 20 states have (on average 3.6) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 04:27:49,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:49,010 INFO L93 Difference]: Finished difference Result 128 states and 141 transitions. [2021-11-19 04:27:49,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:27:49,010 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.6) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 69 [2021-11-19 04:27:49,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:49,011 INFO L225 Difference]: With dead ends: 128 [2021-11-19 04:27:49,011 INFO L226 Difference]: Without dead ends: 68 [2021-11-19 04:27:49,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-11-19 04:27:49,012 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 18 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:49,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 806 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 64 Unchecked, 0.1s Time] [2021-11-19 04:27:49,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-19 04:27:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-19 04:27:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 56 states have internal predecessors, (63), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 04:27:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2021-11-19 04:27:49,021 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 69 [2021-11-19 04:27:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:49,022 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2021-11-19 04:27:49,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.6) internal successors, (72), 18 states have internal predecessors, (72), 6 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-11-19 04:27:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2021-11-19 04:27:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 04:27:49,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:49,023 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 04:27:49,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:49,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:49,235 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash 438339121, now seen corresponding path program 1 times [2021-11-19 04:27:49,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:49,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [468694768] [2021-11-19 04:27:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:49,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:49,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:49,238 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:49,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 04:27:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:49,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 04:27:49,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:52,250 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:27:52,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:27:53,430 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:53,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [468694768] [2021-11-19 04:27:53,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [468694768] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:53,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:53,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-11-19 04:27:53,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629102978] [2021-11-19 04:27:53,430 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:53,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-19 04:27:53,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-19 04:27:53,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=318, Unknown=1, NotChecked=0, Total=380 [2021-11-19 04:27:53,432 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:27:53,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:27:53,899 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2021-11-19 04:27:53,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 04:27:53,900 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 73 [2021-11-19 04:27:53,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:27:53,901 INFO L225 Difference]: With dead ends: 104 [2021-11-19 04:27:53,901 INFO L226 Difference]: Without dead ends: 96 [2021-11-19 04:27:53,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=83, Invalid=422, Unknown=1, NotChecked=0, Total=506 [2021-11-19 04:27:53,902 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 23 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:27:53,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 715 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 110 Unchecked, 0.3s Time] [2021-11-19 04:27:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-19 04:27:53,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 83. [2021-11-19 04:27:53,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 69 states have internal predecessors, (77), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-19 04:27:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2021-11-19 04:27:53,916 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 73 [2021-11-19 04:27:53,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:27:53,917 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2021-11-19 04:27:53,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 20 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:27:53,917 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2021-11-19 04:27:53,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 04:27:53,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:27:53,919 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 04:27:53,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 04:27:54,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:27:54,133 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:27:54,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:27:54,133 INFO L85 PathProgramCache]: Analyzing trace with hash 696504559, now seen corresponding path program 1 times [2021-11-19 04:27:54,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:27:54,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225244541] [2021-11-19 04:27:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:27:54,134 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:27:54,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:27:54,135 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:27:54,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 04:27:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:27:54,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 04:27:54,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:27:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 04:27:55,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:27:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:27:59,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:27:59,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225244541] [2021-11-19 04:27:59,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225244541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:27:59,255 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:27:59,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 26 [2021-11-19 04:27:59,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81105729] [2021-11-19 04:27:59,256 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:27:59,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-19 04:27:59,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:27:59,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-19 04:27:59,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-11-19 04:27:59,257 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 04:28:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:28:00,956 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2021-11-19 04:28:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 04:28:00,957 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 73 [2021-11-19 04:28:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:28:00,958 INFO L225 Difference]: With dead ends: 116 [2021-11-19 04:28:00,958 INFO L226 Difference]: Without dead ends: 96 [2021-11-19 04:28:00,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=99, Invalid=771, Unknown=0, NotChecked=0, Total=870 [2021-11-19 04:28:00,960 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 25 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 302 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 04:28:00,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 1197 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 201 Invalid, 0 Unknown, 302 Unchecked, 0.9s Time] [2021-11-19 04:28:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-19 04:28:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2021-11-19 04:28:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.1311475409836065) internal successors, (69), 62 states have internal predecessors, (69), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 04:28:00,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 84 transitions. [2021-11-19 04:28:00,970 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 84 transitions. Word has length 73 [2021-11-19 04:28:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:28:00,971 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 84 transitions. [2021-11-19 04:28:00,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.3076923076923075) internal successors, (60), 26 states have internal predecessors, (60), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 04:28:00,971 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 84 transitions. [2021-11-19 04:28:00,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 04:28:00,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:28:00,973 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 04:28:00,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-11-19 04:28:01,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:28:01,187 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:28:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:28:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash -405666381, now seen corresponding path program 1 times [2021-11-19 04:28:01,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:28:01,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533384251] [2021-11-19 04:28:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:28:01,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:28:01,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:28:01,190 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:28:01,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 04:28:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:28:01,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-19 04:28:01,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:28:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:28:03,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:28:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:28:07,429 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:28:07,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533384251] [2021-11-19 04:28:07,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533384251] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:28:07,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:28:07,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 13] imperfect sequences [] total 25 [2021-11-19 04:28:07,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464717718] [2021-11-19 04:28:07,430 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:28:07,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 04:28:07,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:28:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 04:28:07,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:28:07,432 INFO L87 Difference]: Start difference. First operand 75 states and 84 transitions. Second operand has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:28:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:28:23,758 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2021-11-19 04:28:23,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 04:28:23,759 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 73 [2021-11-19 04:28:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:28:23,760 INFO L225 Difference]: With dead ends: 110 [2021-11-19 04:28:23,760 INFO L226 Difference]: Without dead ends: 72 [2021-11-19 04:28:23,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=508, Invalid=1214, Unknown=0, NotChecked=0, Total=1722 [2021-11-19 04:28:23,761 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 158 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 04:28:23,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 552 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 406 Invalid, 0 Unknown, 28 Unchecked, 2.4s Time] [2021-11-19 04:28:23,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-11-19 04:28:23,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-11-19 04:28:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1090909090909091) internal successors, (61), 56 states have internal predecessors, (61), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 04:28:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 74 transitions. [2021-11-19 04:28:23,770 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 74 transitions. Word has length 73 [2021-11-19 04:28:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:28:23,770 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 74 transitions. [2021-11-19 04:28:23,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:28:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 74 transitions. [2021-11-19 04:28:23,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 04:28:23,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:28:23,772 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 04:28:23,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 04:28:23,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:28:23,976 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:28:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:28:23,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1028998347, now seen corresponding path program 1 times [2021-11-19 04:28:23,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:28:23,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504225323] [2021-11-19 04:28:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:28:23,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:28:23,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:28:23,979 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:28:23,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 04:28:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:28:24,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 04:28:24,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:28:26,357 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:28:26,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:28:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:28:26,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:28:26,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504225323] [2021-11-19 04:28:26,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504225323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:28:26,921 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:28:26,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-19 04:28:26,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404076129] [2021-11-19 04:28:26,921 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:28:26,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 04:28:26,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:28:26,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 04:28:26,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=202, Unknown=1, NotChecked=0, Total=240 [2021-11-19 04:28:26,923 INFO L87 Difference]: Start difference. First operand 68 states and 74 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:28:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:28:27,161 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2021-11-19 04:28:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:28:27,162 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 74 [2021-11-19 04:28:27,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:28:27,162 INFO L225 Difference]: With dead ends: 76 [2021-11-19 04:28:27,163 INFO L226 Difference]: Without dead ends: 68 [2021-11-19 04:28:27,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2021-11-19 04:28:27,164 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 9 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:28:27,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 508 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 63 Unchecked, 0.1s Time] [2021-11-19 04:28:27,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-19 04:28:27,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-19 04:28:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 56 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-19 04:28:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 73 transitions. [2021-11-19 04:28:27,172 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 73 transitions. Word has length 74 [2021-11-19 04:28:27,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:28:27,173 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 73 transitions. [2021-11-19 04:28:27,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-19 04:28:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 73 transitions. [2021-11-19 04:28:27,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-19 04:28:27,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:28:27,174 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2021-11-19 04:28:27,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 04:28:27,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:28:27,384 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:28:27,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:28:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash -770832909, now seen corresponding path program 1 times [2021-11-19 04:28:27,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 04:28:27,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684273057] [2021-11-19 04:28:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:28:27,385 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 04:28:27,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 04:28:27,386 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 04:28:27,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-19 04:28:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:28:27,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 04:28:27,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:28:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-11-19 04:28:28,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:28:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:28:30,424 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 04:28:30,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684273057] [2021-11-19 04:28:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684273057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 04:28:30,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:28:30,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-19 04:28:30,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968425320] [2021-11-19 04:28:30,424 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 04:28:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-19 04:28:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 04:28:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-19 04:28:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2021-11-19 04:28:30,425 INFO L87 Difference]: Start difference. First operand 68 states and 73 transitions. Second operand has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 04:28:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:28:30,583 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2021-11-19 04:28:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 04:28:30,583 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 74 [2021-11-19 04:28:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:28:30,584 INFO L225 Difference]: With dead ends: 68 [2021-11-19 04:28:30,584 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 04:28:30,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2021-11-19 04:28:30,585 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 5 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:28:30,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 465 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 67 Unchecked, 0.1s Time] [2021-11-19 04:28:30,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 04:28:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 04:28:30,586 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) [2021-11-19 04:28:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 04:28:30,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-11-19 04:28:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:28:30,587 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:28:30,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 24 states have internal predecessors, (62), 6 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-19 04:28:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:28:30,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 04:28:30,590 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:28:30,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-19 04:28:30,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 04:28:30,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 04:35:43,486 WARN L227 SmtUtils]: Spent 7.21m on a formula simplification. DAG size of input: 210 DAG size of output: 188 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-19 04:36:11,617 WARN L227 SmtUtils]: Spent 23.24s on a formula simplification. DAG size of input: 279 DAG size of output: 261 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-19 04:36:38,537 WARN L227 SmtUtils]: Spent 26.41s on a formula simplification. DAG size of input: 188 DAG size of output: 77 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-19 04:36:48,341 WARN L227 SmtUtils]: Spent 7.65s on a formula simplification. DAG size of input: 349 DAG size of output: 166 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-19 04:36:57,241 WARN L227 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 342 DAG size of output: 160 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-19 04:37:12,641 WARN L227 SmtUtils]: Spent 15.39s on a formula simplification. DAG size of input: 261 DAG size of output: 136 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-19 04:40:20,186 WARN L227 SmtUtils]: Spent 3.13m on a formula simplification. DAG size of input: 178 DAG size of output: 100 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-11-19 04:40:20,202 INFO L858 garLoopResultBuilder]: For program point L60(lines 58 73) no Hoare annotation was computed. [2021-11-19 04:40:20,202 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2021-11-19 04:40:20,202 INFO L854 garLoopResultBuilder]: At program point L48-1(lines 38 53) the Hoare annotation is: (not (= |base2flt_#in~m| (_ bv0 32))) [2021-11-19 04:40:20,202 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 76) no Hoare annotation was computed. [2021-11-19 04:40:20,202 INFO L854 garLoopResultBuilder]: At program point L74(lines 36 76) the Hoare annotation is: (not (= |base2flt_#in~m| (_ bv0 32))) [2021-11-19 04:40:20,203 INFO L854 garLoopResultBuilder]: At program point L58-2(lines 58 73) the Hoare annotation is: (not (= |base2flt_#in~m| (_ bv0 32))) [2021-11-19 04:40:20,203 INFO L861 garLoopResultBuilder]: At program point base2fltENTRY(lines 25 83) the Hoare annotation is: true [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point base2fltFINAL(lines 25 83) no Hoare annotation was computed. [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 35) no Hoare annotation was computed. [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point L59(lines 58 73) no Hoare annotation was computed. [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point base2fltEXIT(lines 25 83) no Hoare annotation was computed. [2021-11-19 04:40:20,203 INFO L854 garLoopResultBuilder]: At program point L80(lines 29 82) the Hoare annotation is: (let ((.cse0 (not (= |base2flt_#in~m| (_ bv0 32))))) (and (or (= base2flt_~m |base2flt_#in~m|) .cse0) (or .cse0 (= base2flt_~__retres4~0 (_ bv0 32))))) [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point L39(lines 38 53) no Hoare annotation was computed. [2021-11-19 04:40:20,203 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 352) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point L316-1(lines 316 352) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L854 garLoopResultBuilder]: At program point L341-1(lines 328 346) the Hoare annotation is: (= |ULTIMATE.start_main_~tmp___9~0#1| (_ bv1 32)) [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point L292(lines 280 307) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 138) no Hoare annotation was computed. [2021-11-19 04:40:20,204 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 04:40:20,205 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 138) the Hoare annotation is: (let ((.cse8 (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32))) (.cse7 (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|)) (.cse6 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|))) (let ((.cse0 (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32))) (.cse1 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32))) (.cse2 (let ((.cse9 (let ((.cse10 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse11 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse12 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|))) (.cse13 (let ((.cse14 (not (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (.cse15 (not (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))))) (or (and .cse6 .cse14 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|)) .cse15) (and .cse14 .cse4 .cse15))))) (or (and .cse10 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvlshr (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))) (_ bv1 32)))) .cse11 .cse12 .cse13) (and .cse10 .cse11 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse12 (= (bvand (_ bv33554432 32) |ULTIMATE.start_addflt_~ma~0#1|) (_ bv0 32)) .cse13))))) (or (and (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|))))) .cse9 (= .cse8 .cse7)) (and .cse9 (forall ((|ULTIMATE.start_addflt_~ma~0#1| (_ BitVec 32))) (not (bvult (bvor (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~ma~0#1|) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32))) |ULTIMATE.start_main_~a~0#1|))))))) (.cse3 (bvneg (bvadd .cse8 (_ bv4294967168 32)))) (.cse5 (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)))) (or (and .cse0 .cse1 .cse2 (not (= (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) (bvadd (_ bv4294967295 32) .cse3 |ULTIMATE.start_addflt_~ea~0#1|)) (_ bv0 32))) .cse4 (= (bvadd (_ bv127 32) |ULTIMATE.start_addflt_~ea~0#1|) .cse5)) (and .cse6 .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|)) (and .cse0 .cse1 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~b~0#1|))))) .cse2 (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) (bvadd (bvneg (bvadd (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32)) (_ bv4294967168 32))) |ULTIMATE.start_addflt_~ea~0#1|)) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) (bvult (bvadd .cse3 |ULTIMATE.start_addflt_~ea~0#1|) (_ bv32 32)) (= .cse5 .cse7))))) [2021-11-19 04:40:20,205 INFO L854 garLoopResultBuilder]: At program point L317(lines 313 353) the Hoare annotation is: (let ((.cse9 (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (let ((.cse5 (or (not .cse9) (not (= |ULTIMATE.start_addflt_~a#1| (_ bv0 32))))) (.cse3 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r_add~0#1|)) (.cse0 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse1 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse2 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse6 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|))) (.cse4 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~r_add~0#1|)) (.cse8 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse5 .cse2 .cse3) (and .cse0 .cse7 .cse1 .cse8 (or .cse2 (and .cse4 .cse6))) (and (not (bvugt |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~a~0#1|)) (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32)) (not (bvugt |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvugt |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvugt |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvsgt |ULTIMATE.start_main_~sa~0#1| (_ bv0 32))) .cse9) (and .cse4 .cse7 .cse8 (not (bvult |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~b~0#1|)))))) [2021-11-19 04:40:20,205 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 04:40:20,205 INFO L858 garLoopResultBuilder]: For program point L284(lines 284 288) no Hoare annotation was computed. [2021-11-19 04:40:20,205 INFO L858 garLoopResultBuilder]: For program point L284-2(lines 284 288) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 338) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L95-2(lines 94 147) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L318-1(lines 316 350) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L861 garLoopResultBuilder]: At program point L252(line 252) the Hoare annotation is: true [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L252-1(line 252) no Hoare annotation was computed. [2021-11-19 04:40:20,206 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2021-11-19 04:40:20,207 INFO L854 garLoopResultBuilder]: At program point L145(lines 94 147) the Hoare annotation is: (let ((.cse13 (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) (.cse16 (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (let ((.cse6 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse8 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|))) (.cse7 (not .cse16)) (.cse11 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse9 (not .cse13))) (let ((.cse12 (= |ULTIMATE.start_main_~sa~0#1| (_ bv0 32))) (.cse15 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv0 32))) (.cse20 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~__retres10~0#1|)) (.cse10 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse21 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse0 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse2 (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32))) (.cse3 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32))) (.cse18 (bvult |ULTIMATE.start_addflt_~ma~0#1| (_ bv33554432 32))) (.cse5 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|))) (.cse19 (or (and .cse6 .cse7 .cse8 .cse9) (and .cse7 .cse11 .cse9))) (.cse1 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse22 (not (bvsgt |ULTIMATE.start_main_~sb~0#1| (_ bv0 32)))) (.cse4 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse14 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~__retres10~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 (or (not (bvult (bvor (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~ma~0#1|) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32))) |ULTIMATE.start_main_~a~0#1|)) (not (= (bvand (_ bv33554432 32) |ULTIMATE.start_addflt_~ma~0#1|) (_ bv0 32)))) .cse4 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse5 (or (and .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse7 .cse11 .cse9 .cse10))) (and .cse12 .cse13 .cse11 .cse14 .cse15 .cse16) (and .cse0 (exists ((|v_ULTIMATE.start_addflt_~ma~0#1_103| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (let ((.cse17 (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)))) (and (= (bvor (bvand (_ bv16777215 32) |v_ULTIMATE.start_addflt_~ma~0#1_103|) (bvshl (bvadd .cse17 (_ bv1 32)) (_ bv24 32))) |ULTIMATE.start_addflt_~__retres10~0#1|) (not (= (_ bv0 32) (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) (bvadd .cse17 (bvneg (bvadd (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32)) (_ bv4294967168 32))) (_ bv4294967168 32)))))))) .cse1 .cse2 .cse3 .cse18 .cse4 .cse5 .cse11 (exists ((|v_ULTIMATE.start_addflt_~ma~0#1_97| (_ BitVec 32))) (= (bvor (bvand (_ bv16777215 32) |v_ULTIMATE.start_addflt_~ma~0#1_97|) (bvshl (bvadd (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv1 32)) (_ bv24 32))) |ULTIMATE.start_addflt_~__retres10~0#1|)) (= (bvadd (_ bv127 32) |ULTIMATE.start_addflt_~ea~0#1|) (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32))) .cse19) (and .cse13 (not (bvugt |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvugt |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvsgt |ULTIMATE.start_main_~sa~0#1| (_ bv0 32))) .cse16) (and .cse1 .cse20 .cse6 .cse4 .cse7 .cse10 .cse21) (and .cse1 .cse4 .cse5 .cse7 .cse11 .cse14 .cse9) (and .cse12 (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) .cse11 .cse14 .cse15 (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|)) (and .cse0 .cse1 .cse6 .cse2 .cse3 .cse18 .cse4 .cse5 .cse19 .cse21) (and .cse1 .cse20 .cse6 .cse22 .cse4 .cse9 .cse10 .cse21) (and .cse0 .cse1 .cse2 .cse3 .cse18 .cse4 .cse5 .cse19 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32))) (let ((.cse23 (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~b~0#1|))))) (and (= (bvor (bvand (_ bv16777215 32) .cse23) (bvshl (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv24 32))) |ULTIMATE.start_addflt_~__retres10~0#1|) (= (bvand (_ bv33554432 32) .cse23) (_ bv0 32))))) (exists ((|ULTIMATE.start_addflt_~ea~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (let ((.cse25 (bvadd (bvneg (bvadd (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32)) (_ bv4294967168 32))) |ULTIMATE.start_addflt_~ea~0#1|))) (let ((.cse24 (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) .cse25) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) (and (= |ULTIMATE.start_addflt_~__retres10~0#1| (bvor (bvand (_ bv16777215 32) .cse24) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32)))) (= (bvand (_ bv33554432 32) .cse24) (_ bv0 32)) (bvult .cse25 (_ bv32 32))))))) (and .cse1 .cse22 .cse4 .cse7 .cse11 (not (= |ULTIMATE.start_addflt_~a#1| (_ bv0 32))) .cse14 .cse9))))) [2021-11-19 04:40:20,207 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 273) no Hoare annotation was computed. [2021-11-19 04:40:20,207 INFO L858 garLoopResultBuilder]: For program point L269-2(lines 269 273) no Hoare annotation was computed. [2021-11-19 04:40:20,207 INFO L854 garLoopResultBuilder]: At program point L294-1(lines 294 303) the Hoare annotation is: (let ((.cse0 (bvsge |ULTIMATE.start_main_~tmp___3~0#1| (_ bv0 32))) (.cse1 (bvsge |ULTIMATE.start_main_~tmp___4~0#1| (_ bv0 32))) (.cse2 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse4 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse5 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|))) (.cse6 (not (bvult |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse7 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse9 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|))) (.cse8 (not (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (.cse12 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse11 (not (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))))) (or (and (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32)) .cse0 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~tmp___2~0#1| (_ bv1 32)) .cse1 (let ((.cse3 (let ((.cse10 (not (bvult |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~b~0#1|)))) (or (and .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse8 .cse12 .cse10 .cse11))))) (or (and .cse2 .cse3 (bvult |ULTIMATE.start_addflt_~ma~0#1| (_ bv33554432 32)) .cse4 .cse5 .cse6) (and .cse2 .cse3 .cse4 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse5 .cse6))) (= |ULTIMATE.start_main_~tmp___1~0#1| (_ bv1 32))) (and .cse0 .cse1 (or (and (let ((.cse13 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r_add~0#1|))) (or (and .cse7 .cse8 .cse9 .cse13 .cse11) (and .cse8 .cse12 .cse13 .cse11))) .cse2 .cse4 .cse5) (and .cse2 .cse4 .cse5 .cse6 (let ((.cse14 (not (bvugt |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~a~0#1|)))) (or (and .cse7 .cse14 .cse8 .cse9 .cse11) (and .cse14 .cse8 .cse12 .cse11)))))))) [2021-11-19 04:40:20,207 INFO L854 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2021-11-19 04:40:20,208 INFO L858 garLoopResultBuilder]: For program point L253-1(line 253) no Hoare annotation was computed. [2021-11-19 04:40:20,208 INFO L854 garLoopResultBuilder]: At program point L146(lines 84 148) the Hoare annotation is: (let ((.cse25 (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) (.cse26 (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (let ((.cse20 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse21 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|))) (.cse4 (not .cse26)) (.cse5 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse7 (not .cse25))) (let ((.cse16 (= |ULTIMATE.start_main_~sa~0#1| (_ bv0 32))) (.cse17 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv0 32))) (.cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#res#1|)) (.cse6 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~__retres10~0#1|)) (.cse8 (not (bvult |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~a~0#1|))) (.cse9 (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32))) (.cse11 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32))) (.cse12 (bvult |ULTIMATE.start_addflt_~ma~0#1| (_ bv33554432 32))) (.cse3 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|))) (.cse15 (or (and .cse20 .cse4 .cse21 .cse7) (and .cse4 .cse5 .cse7))) (.cse0 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse22 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~__retres10~0#1|)) (.cse28 (not (bvsgt |ULTIMATE.start_main_~sb~0#1| (_ bv0 32)))) (.cse23 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_#res#1|)) (.cse2 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse19 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse24 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse0 .cse9 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32))) (let ((.cse10 (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~b~0#1|))))) (and (= |ULTIMATE.start_addflt_#res#1| (bvor (bvand (_ bv16777215 32) .cse10) (bvshl (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv24 32)))) (= (bvand (_ bv33554432 32) .cse10) (_ bv0 32))))) .cse11 .cse12 .cse2 .cse3 (exists ((|ULTIMATE.start_addflt_~ea~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (let ((.cse14 (bvadd (bvneg (bvadd (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32)) (_ bv4294967168 32))) |ULTIMATE.start_addflt_~ea~0#1|))) (let ((.cse13 (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) .cse14) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) (and (= |ULTIMATE.start_addflt_#res#1| (bvor (bvand (_ bv16777215 32) .cse13) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32)))) (= (bvand (_ bv33554432 32) .cse13) (_ bv0 32)) (bvult .cse14 (_ bv32 32)))))) .cse15) (and .cse16 (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) .cse1 .cse5 .cse6 .cse17 (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|)) (and .cse8 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|)) .cse0 (let ((.cse18 (not (bvult |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~b~0#1|)))) (or (and .cse4 .cse5 .cse18 .cse7 .cse19) (and .cse20 .cse4 .cse21 .cse18 .cse7 .cse19))) .cse9 .cse11 (or (not (bvult (bvor (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~ma~0#1|) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32))) |ULTIMATE.start_main_~a~0#1|)) (not (= (bvand (_ bv33554432 32) |ULTIMATE.start_addflt_~ma~0#1|) (_ bv0 32)))) .cse2 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse3) (and .cse0 .cse22 .cse20 .cse23 .cse2 .cse4 .cse19 .cse24) (and .cse16 .cse25 .cse1 .cse5 .cse6 .cse17 .cse26) (and .cse8 .cse0 .cse9 (exists ((|v_ULTIMATE.start_addflt_~ma~0#1_97| (_ BitVec 32))) (= (bvor (bvand (_ bv16777215 32) |v_ULTIMATE.start_addflt_~ma~0#1_97|) (bvshl (bvadd (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv1 32)) (_ bv24 32))) |ULTIMATE.start_addflt_#res#1|)) .cse11 .cse12 (exists ((|v_ULTIMATE.start_addflt_~ma~0#1_103| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (let ((.cse27 (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)))) (and (not (= (_ bv0 32) (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)) (bvadd .cse27 (bvneg (bvadd (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32)) (_ bv4294967168 32))) (_ bv4294967168 32))))) (= |ULTIMATE.start_addflt_#res#1| (bvor (bvand (_ bv16777215 32) |v_ULTIMATE.start_addflt_~ma~0#1_103|) (bvshl (bvadd .cse27 (_ bv1 32)) (_ bv24 32))))))) .cse2 .cse3 .cse15) (and .cse0 .cse28 .cse1 .cse2 .cse4 .cse5 (not (= |ULTIMATE.start_addflt_~a#1| (_ bv0 32))) .cse6 .cse7) (and .cse8 .cse0 .cse20 .cse9 .cse11 .cse12 .cse2 .cse3 .cse15 .cse24) (and .cse0 .cse22 .cse20 .cse28 .cse23 .cse2 .cse7 .cse19 .cse24) (and (not (bvugt |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~a~0#1|)) .cse25 (not (bvugt |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvugt |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|)) (not (bvsgt |ULTIMATE.start_main_~sa~0#1| (_ bv0 32))) .cse26))))) [2021-11-19 04:40:20,208 INFO L854 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|) [2021-11-19 04:40:20,208 INFO L858 garLoopResultBuilder]: For program point L254-1(line 254) no Hoare annotation was computed. [2021-11-19 04:40:20,208 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 312) no Hoare annotation was computed. [2021-11-19 04:40:20,209 INFO L858 garLoopResultBuilder]: For program point L279-1(lines 250 356) no Hoare annotation was computed. [2021-11-19 04:40:20,209 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 325) no Hoare annotation was computed. [2021-11-19 04:40:20,209 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 04:40:20,209 INFO L858 garLoopResultBuilder]: For program point L321-2(lines 321 325) no Hoare annotation was computed. [2021-11-19 04:40:20,209 INFO L858 garLoopResultBuilder]: For program point L280(lines 280 309) no Hoare annotation was computed. [2021-11-19 04:40:20,210 INFO L854 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse12 (bvlshr |ULTIMATE.start_main_~a~0#1| (_ bv24 32))) (.cse4 (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~eb~0#1|)) (.cse11 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~a~0#1|)))) (let ((.cse9 (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|)) (.cse7 (= |ULTIMATE.start_addflt_~mb~0#1| .cse11)) (.cse8 (= .cse12 .cse4))) (let ((.cse0 (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32))) (.cse1 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32))) (.cse3 (let ((.cse10 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse13 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32)))) (or (and .cse10 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|) (= |ULTIMATE.start_addflt_~ma~0#1| .cse11) (bvsge |ULTIMATE.start_addflt_~ea~0#1| |ULTIMATE.start_addflt_~eb~0#1|) (= .cse12 .cse9) (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~mb~0#1| (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)))) .cse13 (not (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32))) (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|)) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|)) (and .cse10 (bvult |ULTIMATE.start_addflt_~b#1| |ULTIMATE.start_addflt_~a#1|) .cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~b#1|) (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (and (= (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)) (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|)) (= |ULTIMATE.start_addflt_~ma~0#1| (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse8 .cse13 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|) (exists ((|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (and (= (bvlshr |ULTIMATE.start_addflt_~a#1| (_ bv24 32)) (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|)) (bvult |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|))) (not (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))))))) (.cse2 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~b~0#1|))) (.cse5 (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32))) (.cse6 (= (_ bv0 32) |ULTIMATE.start_main_~zero~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_addflt_~mb~0#1| .cse2) .cse3 (= .cse4 .cse5) .cse6) (and .cse0 .cse7 .cse1 .cse8 .cse3 (= |ULTIMATE.start_addflt_~ma~0#1| .cse2) (= .cse5 .cse9) .cse6))))) [2021-11-19 04:40:20,210 INFO L858 garLoopResultBuilder]: For program point L115-1(line 115) no Hoare annotation was computed. [2021-11-19 04:40:20,210 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-19 04:40:20,210 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 301) no Hoare annotation was computed. [2021-11-19 04:40:20,210 INFO L858 garLoopResultBuilder]: For program point L297-2(lines 297 301) no Hoare annotation was computed. [2021-11-19 04:40:20,210 INFO L861 garLoopResultBuilder]: At program point L355(lines 226 357) the Hoare annotation is: true [2021-11-19 04:40:20,211 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 04:40:20,211 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 265) no Hoare annotation was computed. [2021-11-19 04:40:20,211 INFO L858 garLoopResultBuilder]: For program point L256-2(lines 250 356) no Hoare annotation was computed. [2021-11-19 04:40:20,211 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 290) no Hoare annotation was computed. [2021-11-19 04:40:20,212 INFO L854 garLoopResultBuilder]: At program point L281-2(lines 281 290) the Hoare annotation is: (let ((.cse14 (= |ULTIMATE.start_main_~tmp___2~0#1| (_ bv1 32))) (.cse18 (= |ULTIMATE.start_main_~tmp___1~0#1| (_ bv1 32))) (.cse4 (= |ULTIMATE.start_main_~tmp~2#1| (_ bv1 32))) (.cse5 (= |ULTIMATE.start_main_~tmp___0~0#1| (_ bv1 32))) (.cse6 (= |ULTIMATE.start_main_~sb~0#1| (_ bv1 32))) (.cse19 (bvsge |ULTIMATE.start_main_~tmp___1~0#1| (_ bv0 32))) (.cse15 (= |ULTIMATE.start_main_~sa~0#1| (_ bv1 32))) (.cse16 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~a~0#1|))) (.cse17 (not (bvult |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse20 (bvsge |ULTIMATE.start_main_~tmp___2~0#1| (_ bv0 32))) (.cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~b#1|)) (.cse13 (not (bvult |ULTIMATE.start_addflt_~a#1| |ULTIMATE.start_main_~b~0#1|))) (.cse21 (not (bvugt |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse7 (not (= |ULTIMATE.start_addflt_~b#1| (_ bv0 32)))) (.cse8 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~a#1|)) (.cse11 (not (= |ULTIMATE.start_main_~a~0#1| (_ bv0 32))))) (let ((.cse2 (not (bvult |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~a~0#1|))) (.cse3 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse10 (not (bvult |ULTIMATE.start_main_~r_add~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse0 (let ((.cse23 (bvult |ULTIMATE.start_addflt_~ma~0#1| (_ bv33554432 32)))) (or (and .cse4 .cse5 .cse6 .cse23 .cse14 .cse15 .cse16 .cse17 (or (and .cse1 .cse7 .cse13 .cse11) (and .cse7 .cse8 .cse11)) .cse18) (and .cse4 .cse5 .cse6 .cse19 .cse23 .cse15 .cse16 .cse17 .cse20 (or (and .cse1 .cse21 .cse7 .cse13 .cse11) (and .cse21 .cse7 .cse8 .cse11))))))) (or (and (not (= (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv255 32))) (exists ((|v_ULTIMATE.start_addflt_~ma~0#1_97| (_ BitVec 32))) (= (bvor (bvand (_ bv16777215 32) |v_ULTIMATE.start_addflt_~ma~0#1_97|) (bvshl (bvadd (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv1 32)) (_ bv24 32))) |ULTIMATE.start_main_~r_add~0#1|)) .cse0) (and .cse1 .cse0 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_addflt_~a#1|)) (and .cse2 .cse3 .cse4 .cse5 .cse6 (let ((.cse9 (not (bvult |ULTIMATE.start_addflt_#res#1| |ULTIMATE.start_main_~b~0#1|))) (.cse12 (not (bvult |ULTIMATE.start_addflt_~__retres10~0#1| |ULTIMATE.start_main_~b~0#1|)))) (or (and .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse7 .cse13 .cse9 .cse10 .cse11 .cse12))) (or (not (bvult (bvor (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~ma~0#1|) (bvshl (bvadd (_ bv128 32) |ULTIMATE.start_addflt_~ea~0#1|) (_ bv24 32))) |ULTIMATE.start_main_~a~0#1|)) (not (= (bvand (_ bv33554432 32) |ULTIMATE.start_addflt_~ma~0#1|) (_ bv0 32)))) .cse14 .cse15 (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~a#1| (_ BitVec 32))) (= |ULTIMATE.start_addflt_~ma~0#1| (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~a#1|))))) .cse16 .cse17 .cse18) (and .cse2 .cse3 .cse4 .cse19 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~r_add~0#1|) .cse15 .cse16 .cse20 (or (and .cse1 .cse7 .cse10) (and .cse21 .cse7 .cse8 .cse10 .cse11))) (and (exists ((|ULTIMATE.start_addflt_~b#1| (_ BitVec 32)) (|ULTIMATE.start_addflt_~delta~0#1| (_ BitVec 32))) (let ((.cse22 (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_addflt_~b#1|)) |ULTIMATE.start_addflt_~delta~0#1|) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |ULTIMATE.start_main_~b~0#1|))))) (and (= (bvor (bvand (_ bv16777215 32) .cse22) (bvshl (bvlshr |ULTIMATE.start_main_~b~0#1| (_ bv24 32)) (_ bv24 32))) |ULTIMATE.start_main_~r_add~0#1|) (= (bvand (_ bv33554432 32) .cse22) (_ bv0 32))))) .cse0) (and .cse4 .cse19 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_#res#1|) .cse15 .cse17 .cse20 .cse7 .cse8 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_addflt_~__retres10~0#1|) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r_add~0#1|) .cse11)))) [2021-11-19 04:40:20,212 INFO L858 garLoopResultBuilder]: For program point L331(lines 331 340) no Hoare annotation was computed. [2021-11-19 04:40:20,212 INFO L858 garLoopResultBuilder]: For program point L331-2(lines 330 346) no Hoare annotation was computed. [2021-11-19 04:40:20,212 INFO L858 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2021-11-19 04:40:20,212 INFO L858 garLoopResultBuilder]: For program point L117-2(line 117) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point L266-1(lines 266 275) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 19) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point L17-2(lines 16 21) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 16 21) the Hoare annotation is: true [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 16 21) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2021-11-19 04:40:20,213 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-11-19 04:40:20,217 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:40:20,219 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:40:20,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,248 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,248 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,251 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,252 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,252 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,252 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,253 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,253 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,265 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,266 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,267 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,268 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,269 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,270 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,271 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,294 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,308 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,308 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,308 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,309 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,309 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,309 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:40:20 BoogieIcfgContainer [2021-11-19 04:40:20,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:40:20,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:40:20,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:40:20,319 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:40:20,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:26:52" (3/4) ... [2021-11-19 04:40:20,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:40:20,332 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2021-11-19 04:40:20,333 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-19 04:40:20,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-19 04:40:20,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-19 04:40:20,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:40:20,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:40:20,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (m == \old(m) || !(\old(m) == 0bv32)) && (!(\old(m) == 0bv32) || __retres4 == 0bv32) [2021-11-19 04:40:20,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(m) == 0bv32) [2021-11-19 04:40:20,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(m) == 0bv32) [2021-11-19 04:40:20,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(m) == 0bv32) [2021-11-19 04:40:20,371 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(128bv32, ea), 24bv32)), a) || !(~bvand64(33554432bv32, ma) == 0bv32))) && sa == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ma == ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1))))) && !~bvult64(a, a)) && (((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)) || (((!(b == 0bv32) && b == a) && !(a == 0bv32)) && !~bvult64(__retres10, b)))) || (((((sa == 0bv32 && a == 0bv32) && b == a) && b == __retres10) && tmp == 0bv32) && b == 0bv32)) || (((((((((((!~bvult64(__retres10, a) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_103 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_103), ~bvshl32(~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), 1bv32), 24bv32)) == __retres10 && !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), 4294967168bv32))))) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && b == a) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_97 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_97), ~bvshl32(~bvadd64(~bvlshr64(b, 24bv32), 1bv32), 24bv32)) == __retres10)) && ~bvadd64(127bv32, ea) == ~bvlshr64(b, 24bv32)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((a == 0bv32 && !~bvugt32(a, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32)) || ((((((tmp == 1bv32 && a == __retres10) && b == b) && sa == 1bv32) && !(b == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || ((((((tmp == 1bv32 && sa == 1bv32) && !~bvult64(a, a)) && !(b == 0bv32)) && b == a) && b == __retres10) && !(a == 0bv32))) || (((((sa == 0bv32 && !~bvugt32(a, 0bv32)) && b == a) && b == __retres10) && tmp == 0bv32) && 0bv32 == zero)) || (((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && b == b) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && a == a)) || (((((((tmp == 1bv32 && a == __retres10) && b == b) && !~bvsgt32(sb, 0bv32)) && sa == 1bv32) && !(a == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || (((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32 :: ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))), ~bvshl32(~bvlshr64(b, 24bv32), 24bv32)) == __retres10 && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))) == 0bv32)) && (\exists ULTIMATE.start_addflt_~ea~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: (__retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))), ~bvshl32(~bvadd64(128bv32, ULTIMATE.start_addflt_~ea~0#1), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))) == 0bv32) && ~bvult64(~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1), 32bv32)))) || (((((((tmp == 1bv32 && !~bvsgt32(sb, 0bv32)) && sa == 1bv32) && !(b == 0bv32)) && b == a) && !(a == 0bv32)) && b == __retres10) && !(a == 0bv32)) [2021-11-19 04:40:20,371 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((tmp == 1bv32 && b == \result) && sa == 1bv32) && !~bvult64(a, a)) && !(b == 0bv32)) && b == a) && b == __retres10) && !(a == 0bv32)) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && tmp___0 == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32 :: \result == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))), ~bvshl32(~bvlshr64(b, 24bv32), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))) == 0bv32)) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && (\exists ULTIMATE.start_addflt_~ea~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: (\result == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))), ~bvshl32(~bvadd64(128bv32, ULTIMATE.start_addflt_~ea~0#1), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))) == 0bv32) && ~bvult64(~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1), 32bv32))) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((((sa == 0bv32 && !~bvugt32(a, 0bv32)) && b == \result) && b == a) && b == __retres10) && tmp == 0bv32) && 0bv32 == zero)) || (((((((((!~bvult64(\result, a) && !~bvult64(__retres10, a)) && tmp == 1bv32) && (((((!(b == 0bv32) && b == a) && !~bvult64(\result, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)) || (((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !~bvult64(\result, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)))) && tmp___0 == 1bv32) && sb == 1bv32) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(128bv32, ea), 24bv32)), a) || !(~bvand64(33554432bv32, ma) == 0bv32))) && sa == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ma == ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1))))) && !~bvult64(a, a))) || (((((((tmp == 1bv32 && a == __retres10) && b == b) && a == \result) && sa == 1bv32) && !(b == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || ((((((sa == 0bv32 && a == 0bv32) && b == \result) && b == a) && b == __retres10) && tmp == 0bv32) && b == 0bv32)) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && tmp___0 == 1bv32) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_97 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_97), ~bvshl32(~bvadd64(~bvlshr64(b, 24bv32), 1bv32), 24bv32)) == \result)) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_103 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), 4294967168bv32))) && \result == ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_103), ~bvshl32(~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), 1bv32), 24bv32)))) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((((((tmp == 1bv32 && !~bvsgt32(sb, 0bv32)) && b == \result) && sa == 1bv32) && !(b == 0bv32)) && b == a) && !(a == 0bv32)) && b == __retres10) && !(a == 0bv32))) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && b == b) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && a == a)) || ((((((((tmp == 1bv32 && a == __retres10) && b == b) && !~bvsgt32(sb, 0bv32)) && a == \result) && sa == 1bv32) && !(a == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || (((((!~bvugt32(\result, a) && a == 0bv32) && !~bvugt32(a, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32) [2021-11-19 04:40:20,371 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1bv32 && sa == 1bv32) && b == a) && b == r_add) || (((b == b && (!(b == 0bv32) || !(a == 0bv32))) && !~bvult64(a, b)) && b == r_add)) || (((!(b == 0bv32) || !(a == 0bv32)) && b == a) && b == r_add)) || ((((tmp == 1bv32 && a == r_add) && sa == 1bv32) && !~bvult64(a, a)) && (b == a || (b == b && !~bvult64(a, b))))) || ((((((!~bvugt32(\result, a) && a == 0bv32) && !~bvugt32(a, a)) && !~bvugt32(r_add, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32)) || (((b == b && a == r_add) && !~bvult64(a, a)) && !~bvult64(r_add, b)) [2021-11-19 04:40:20,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:40:20,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:40:20,400 INFO L158 Benchmark]: Toolchain (without parser) took 808992.67ms. Allocated memory was 62.9MB in the beginning and 232.8MB in the end (delta: 169.9MB). Free memory was 45.0MB in the beginning and 206.8MB in the end (delta: -161.8MB). Peak memory consumption was 141.0MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,400 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:40:20,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.75ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.3MB in the end (delta: 501.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.84ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,401 INFO L158 Benchmark]: Boogie Preprocessor took 89.47ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,402 INFO L158 Benchmark]: RCFGBuilder took 779.27ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.6MB in the beginning and 70.6MB in the end (delta: -30.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,402 INFO L158 Benchmark]: TraceAbstraction took 807383.96ms. Allocated memory was 90.2MB in the beginning and 232.8MB in the end (delta: 142.6MB). Free memory was 70.2MB in the beginning and 75.8MB in the end (delta: -5.7MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,403 INFO L158 Benchmark]: Witness Printer took 80.15ms. Allocated memory is still 232.8MB. Free memory was 75.8MB in the beginning and 206.8MB in the end (delta: -130.9MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-11-19 04:40:20,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 95.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.75ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.3MB in the end (delta: 501.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.84ms. Allocated memory is still 62.9MB. Free memory was 44.1MB in the beginning and 42.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.47ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 40.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.27ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.6MB in the beginning and 70.6MB in the end (delta: -30.0MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 807383.96ms. Allocated memory was 90.2MB in the beginning and 232.8MB in the end (delta: 142.6MB). Free memory was 70.2MB in the beginning and 75.8MB in the end (delta: -5.7MB). Peak memory consumption was 137.9MB. Max. memory is 16.1GB. * Witness Printer took 80.15ms. Allocated memory is still 232.8MB. Free memory was 75.8MB in the beginning and 206.8MB in the end (delta: -130.9MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: 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 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 807.2s, OverallIterations: 35, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 32.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 709.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3553 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3482 mSDsluCounter, 24166 SdHoareTripleChecker+Invalid, 8.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2089 IncrementalHoareTripleChecker+Unchecked, 20502 mSDsCounter, 501 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3708 IncrementalHoareTripleChecker+Invalid, 6298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 501 mSolverCounterUnsat, 3664 mSDtfsCounter, 3708 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3984 GetRequests, 3476 SyntacticMatches, 3 SemanticMatches, 505 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 57.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=371occurred in iteration=15, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 35 MinimizatonAttempts, 2088 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 215 PreInvPairs, 312 NumberOfFragments, 3518 HoareAnnotationTreeSize, 215 FomulaSimplifications, 17471087 FormulaSimplificationTreeSizeReduction, 461.3s HoareSimplificationTime, 18 FomulaSimplificationsInter, 4505284 FormulaSimplificationTreeSizeReductionInter, 248.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 54.2s InterpolantComputationTime, 1960 NumberOfCodeBlocks, 1942 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 3850 ConstructedInterpolants, 255 QuantifiedInterpolants, 14548 SizeOfPredicates, 264 NumberOfNonLiveVariables, 3546 ConjunctsInSsa, 327 ConjunctsInUnsatCore, 70 InterpolantComputations, 54 PerfectInterpolantSequences, 1443/1530 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: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (m == \old(m) || !(\old(m) == 0bv32)) && (!(\old(m) == 0bv32) || __retres4 == 0bv32) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: !(\old(m) == 0bv32) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(m) == 0bv32) - InvariantResult [Line: 84]: Loop Invariant [2021-11-19 04:40:20,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,429 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,430 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,431 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,432 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,433 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] Derived loop invariant: ((((((((((((((((tmp == 1bv32 && b == \result) && sa == 1bv32) && !~bvult64(a, a)) && !(b == 0bv32)) && b == a) && b == __retres10) && !(a == 0bv32)) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && tmp___0 == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32 :: \result == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))), ~bvshl32(~bvlshr64(b, 24bv32), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))) == 0bv32)) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && (\exists ULTIMATE.start_addflt_~ea~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: (\result == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))), ~bvshl32(~bvadd64(128bv32, ULTIMATE.start_addflt_~ea~0#1), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))) == 0bv32) && ~bvult64(~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1), 32bv32))) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((((sa == 0bv32 && !~bvugt32(a, 0bv32)) && b == \result) && b == a) && b == __retres10) && tmp == 0bv32) && 0bv32 == zero)) || (((((((((!~bvult64(\result, a) && !~bvult64(__retres10, a)) && tmp == 1bv32) && (((((!(b == 0bv32) && b == a) && !~bvult64(\result, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)) || (((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !~bvult64(\result, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)))) && tmp___0 == 1bv32) && sb == 1bv32) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(128bv32, ea), 24bv32)), a) || !(~bvand64(33554432bv32, ma) == 0bv32))) && sa == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ma == ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1))))) && !~bvult64(a, a))) || (((((((tmp == 1bv32 && a == __retres10) && b == b) && a == \result) && sa == 1bv32) && !(b == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || ((((((sa == 0bv32 && a == 0bv32) && b == \result) && b == a) && b == __retres10) && tmp == 0bv32) && b == 0bv32)) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && tmp___0 == 1bv32) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_97 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_97), ~bvshl32(~bvadd64(~bvlshr64(b, 24bv32), 1bv32), 24bv32)) == \result)) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_103 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), 4294967168bv32))) && \result == ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_103), ~bvshl32(~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), 1bv32), 24bv32)))) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((((((tmp == 1bv32 && !~bvsgt32(sb, 0bv32)) && b == \result) && sa == 1bv32) && !(b == 0bv32)) && b == a) && !(a == 0bv32)) && b == __retres10) && !(a == 0bv32))) || (((((((((!~bvult64(\result, a) && tmp == 1bv32) && b == b) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && a == a)) || ((((((((tmp == 1bv32 && a == __retres10) && b == b) && !~bvsgt32(sb, 0bv32)) && a == \result) && sa == 1bv32) && !(a == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || (((((!~bvugt32(\result, a) && a == 0bv32) && !~bvugt32(a, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32) - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: (((((((tmp == 1bv32 && sa == 1bv32) && b == a) && b == r_add) || (((b == b && (!(b == 0bv32) || !(a == 0bv32))) && !~bvult64(a, b)) && b == r_add)) || (((!(b == 0bv32) || !(a == 0bv32)) && b == a) && b == r_add)) || ((((tmp == 1bv32 && a == r_add) && sa == 1bv32) && !~bvult64(a, a)) && (b == a || (b == b && !~bvult64(a, b))))) || ((((((!~bvugt32(\result, a) && a == 0bv32) && !~bvugt32(a, a)) && !~bvugt32(r_add, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32)) || (((b == b && a == r_add) && !~bvult64(a, a)) && !~bvult64(r_add, b)) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: !(\old(m) == 0bv32) - InvariantResult [Line: 94]: Loop Invariant [2021-11-19 04:40:20,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,442 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,442 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,442 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,442 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_103,QUANTIFIED] [2021-11-19 04:40:20,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_addflt_~ma~0#1_97,QUANTIFIED] [2021-11-19 04:40:20,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~b#1,QUANTIFIED] [2021-11-19 04:40:20,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~delta~0#1,QUANTIFIED] [2021-11-19 04:40:20,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] [2021-11-19 04:40:20,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~a#1,QUANTIFIED] [2021-11-19 04:40:20,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_addflt_~ea~0#1,QUANTIFIED] Derived loop invariant: (((((((((((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(128bv32, ea), 24bv32)), a) || !(~bvand64(33554432bv32, ma) == 0bv32))) && sa == 1bv32) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ma == ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1))))) && !~bvult64(a, a)) && (((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) && !~bvult64(__retres10, b)) || (((!(b == 0bv32) && b == a) && !(a == 0bv32)) && !~bvult64(__retres10, b)))) || (((((sa == 0bv32 && a == 0bv32) && b == a) && b == __retres10) && tmp == 0bv32) && b == 0bv32)) || (((((((((((!~bvult64(__retres10, a) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_103 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_103), ~bvshl32(~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), 1bv32), 24bv32)) == __retres10 && !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvlshr64(ULTIMATE.start_addflt_~a#1, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), 4294967168bv32))))) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && b == a) && (\exists v_ULTIMATE.start_addflt_~ma~0#1_97 : bv32 :: ~bvor32(~bvand64(16777215bv32, v_ULTIMATE.start_addflt_~ma~0#1_97), ~bvshl32(~bvadd64(~bvlshr64(b, 24bv32), 1bv32), 24bv32)) == __retres10)) && ~bvadd64(127bv32, ea) == ~bvlshr64(b, 24bv32)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32))))) || ((((a == 0bv32 && !~bvugt32(a, a)) && !~bvugt32(__retres10, a)) && !~bvsgt32(sa, 0bv32)) && b == 0bv32)) || ((((((tmp == 1bv32 && a == __retres10) && b == b) && sa == 1bv32) && !(b == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || ((((((tmp == 1bv32 && sa == 1bv32) && !~bvult64(a, a)) && !(b == 0bv32)) && b == a) && b == __retres10) && !(a == 0bv32))) || (((((sa == 0bv32 && !~bvugt32(a, 0bv32)) && b == a) && b == __retres10) && tmp == 0bv32) && 0bv32 == zero)) || (((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && b == b) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && a == a)) || (((((((tmp == 1bv32 && a == __retres10) && b == b) && !~bvsgt32(sb, 0bv32)) && sa == 1bv32) && !(a == 0bv32)) && !~bvult64(__retres10, b)) && a == a)) || (((((((((!~bvult64(__retres10, a) && tmp == 1bv32) && tmp___0 == 1bv32) && sb == 1bv32) && ~bvult64(ma, 33554432bv32)) && sa == 1bv32) && !~bvult64(a, a)) && ((((b == b && !(b == 0bv32)) && !~bvult64(a, b)) && !(a == 0bv32)) || ((!(b == 0bv32) && b == a) && !(a == 0bv32)))) && (\exists ULTIMATE.start_addflt_~b#1 : bv32, ULTIMATE.start_addflt_~delta~0#1 : bv32 :: ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))), ~bvshl32(~bvlshr64(b, 24bv32), 24bv32)) == __retres10 && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~b#1)), ULTIMATE.start_addflt_~delta~0#1), ~bvor32(16777216bv32, ~bvand64(16777215bv32, b)))) == 0bv32)) && (\exists ULTIMATE.start_addflt_~ea~0#1 : bv32, ULTIMATE.start_addflt_~a#1 : bv32 :: (__retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))), ~bvshl32(~bvadd64(128bv32, ULTIMATE.start_addflt_~ea~0#1), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, a)), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1)), ~bvor32(16777216bv32, ~bvand64(16777215bv32, ULTIMATE.start_addflt_~a#1)))) == 0bv32) && ~bvult64(~bvadd64(~bvneg32(~bvadd64(~bvlshr64(a, 24bv32), 4294967168bv32)), ULTIMATE.start_addflt_~ea~0#1), 32bv32)))) || (((((((tmp == 1bv32 && !~bvsgt32(sb, 0bv32)) && sa == 1bv32) && !(b == 0bv32)) && b == a) && !(a == 0bv32)) && b == __retres10) && !(a == 0bv32)) RESULT: Ultimate proved your program to be correct! [2021-11-19 04:40:20,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d463e6d4-36a9-477d-a279-6c3b514ec468/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE