./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c12284a0b0818e5553c135263b83926be59cee67b7fc82977d08837b834dc791 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:09:32,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:09:32,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:09:33,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:09:33,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:09:33,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:09:33,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:09:33,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:09:33,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:09:33,078 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:09:33,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:09:33,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:09:33,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:09:33,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:09:33,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:09:33,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:09:33,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:09:33,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:09:33,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:09:33,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:09:33,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:09:33,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:09:33,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:09:33,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:09:33,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:09:33,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:09:33,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:09:33,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:09:33,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:09:33,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:09:33,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:09:33,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:09:33,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:09:33,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:09:33,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:09:33,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:09:33,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:09:33,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:09:33,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:09:33,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:09:33,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:09:33,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:09:33,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:09:33,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:09:33,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:09:33,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:09:33,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:09:33,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:09:33,212 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:09:33,212 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:09:33,212 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:09:33,212 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:09:33,213 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:09:33,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:09:33,214 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:09:33,214 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:09:33,215 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:09:33,215 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:09:33,215 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:09:33,215 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:09:33,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:09:33,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:09:33,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:09:33,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:09:33,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:09:33,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:09:33,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:09:33,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:09:33,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:09:33,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:09:33,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:09:33,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:09:33,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:09:33,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:09:33,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:33,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:09:33,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:09:33,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:09:33,223 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:09:33,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:09:33,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:09:33,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:09:33,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:09:33,224 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12284a0b0818e5553c135263b83926be59cee67b7fc82977d08837b834dc791 [2021-11-23 17:09:33,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:09:33,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:09:33,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:09:33,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:09:33,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:09:33,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label17.c [2021-11-23 17:09:33,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/89eb497a2/671aab31d70242c9bb9e560760c5acd2/FLAG242e96026 [2021-11-23 17:09:34,407 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:09:34,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c [2021-11-23 17:09:34,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/89eb497a2/671aab31d70242c9bb9e560760c5acd2/FLAG242e96026 [2021-11-23 17:09:34,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/89eb497a2/671aab31d70242c9bb9e560760c5acd2 [2021-11-23 17:09:34,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:09:34,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:09:34,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:34,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:09:34,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:09:34,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:34" (1/1) ... [2021-11-23 17:09:34,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c564e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:34, skipping insertion in model container [2021-11-23 17:09:34,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:34" (1/1) ... [2021-11-23 17:09:34,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:09:34,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:09:35,082 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c[3604,3617] [2021-11-23 17:09:35,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:35,320 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:09:35,360 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c[3604,3617] [2021-11-23 17:09:35,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:35,461 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:09:35,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35 WrapperNode [2021-11-23 17:09:35,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:35,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:35,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:09:35,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:09:35,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,568 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 17:09:35,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:35,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:09:35,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:09:35,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:09:35,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:09:35,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:09:35,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:09:35,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:09:35,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:35" (1/1) ... [2021-11-23 17:09:35,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:35,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:35,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:09:35,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:09:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:09:35,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:09:35,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:09:35,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:09:35,852 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:09:35,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:09:37,006 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:09:37,092 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:09:37,097 INFO L158 Benchmark]: Toolchain (without parser) took 2423.20ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 51.8MB in the beginning and 81.1MB in the end (delta: -29.3MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2021-11-23 17:09:37,098 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:09:37,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.84ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 51.6MB in the beginning and 72.3MB in the end (delta: -20.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-23 17:09:37,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.03ms. Allocated memory is still 113.2MB. Free memory was 72.3MB in the beginning and 64.2MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:09:37,101 INFO L158 Benchmark]: Boogie Preprocessor took 131.01ms. Allocated memory is still 113.2MB. Free memory was 64.2MB in the beginning and 59.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:09:37,101 INFO L158 Benchmark]: RCFGBuilder took 1393.87ms. Allocated memory is still 113.2MB. Free memory was 59.4MB in the beginning and 81.1MB in the end (delta: -21.7MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-11-23 17:09:37,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 69.6MB in the beginning and 69.6MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.84ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 51.6MB in the beginning and 72.3MB in the end (delta: -20.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.03ms. Allocated memory is still 113.2MB. Free memory was 72.3MB in the beginning and 64.2MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.01ms. Allocated memory is still 113.2MB. Free memory was 64.2MB in the beginning and 59.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1393.87ms. Allocated memory is still 113.2MB. Free memory was 59.4MB in the beginning and 81.1MB in the end (delta: -21.7MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:09:37,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c12284a0b0818e5553c135263b83926be59cee67b7fc82977d08837b834dc791 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:09:39,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:09:39,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:09:39,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:09:39,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:09:39,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:09:39,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:09:39,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:09:39,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:09:39,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:09:39,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:09:39,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:09:39,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:09:39,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:09:39,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:09:39,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:09:39,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:09:39,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:09:39,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:09:39,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:09:39,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:09:39,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:09:39,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:09:39,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:09:39,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:09:39,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:09:39,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:09:39,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:09:39,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:09:39,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:09:39,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:09:39,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:09:39,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:09:39,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:09:39,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:09:39,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:09:39,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:09:39,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:09:39,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:09:39,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:09:39,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:09:39,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:09:39,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:09:39,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:09:39,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:09:39,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:09:39,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:09:39,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:09:39,915 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:09:39,915 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:09:39,915 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:09:39,915 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:09:39,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:09:39,917 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:09:39,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:09:39,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:09:39,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:09:39,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:09:39,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:09:39,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:09:39,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:09:39,920 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:09:39,920 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:09:39,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:09:39,921 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:09:39,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:09:39,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:09:39,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:09:39,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:09:39,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:09:39,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:09:39,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:39,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:09:39,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:09:39,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:09:39,924 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:09:39,924 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:39,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:09:39,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:09:39,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:09:39,925 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12284a0b0818e5553c135263b83926be59cee67b7fc82977d08837b834dc791 [2021-11-23 17:09:40,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:09:40,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:09:40,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:09:40,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:09:40,383 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:09:40,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label17.c [2021-11-23 17:09:40,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/587795026/5177456ae3c141f9a02f786a36feee78/FLAGe71be3cf6 [2021-11-23 17:09:41,178 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:09:41,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c [2021-11-23 17:09:41,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/587795026/5177456ae3c141f9a02f786a36feee78/FLAGe71be3cf6 [2021-11-23 17:09:41,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/data/587795026/5177456ae3c141f9a02f786a36feee78 [2021-11-23 17:09:41,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:09:41,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:09:41,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:41,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:09:41,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:09:41,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:41" (1/1) ... [2021-11-23 17:09:41,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da36976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:41, skipping insertion in model container [2021-11-23 17:09:41,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:41" (1/1) ... [2021-11-23 17:09:41,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:09:41,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:09:41,789 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c[3604,3617] [2021-11-23 17:09:42,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:42,087 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:09:42,125 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_230452f7-0135-4ad8-8a7f-34ebc32f78b9/sv-benchmarks/c/eca-rers2012/Problem10_label17.c[3604,3617] [2021-11-23 17:09:42,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:42,229 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:09:42,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42 WrapperNode [2021-11-23 17:09:42,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:42,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:42,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:09:42,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:09:42,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,334 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 595 [2021-11-23 17:09:42,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:42,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:09:42,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:09:42,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:09:42,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:09:42,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:09:42,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:09:42,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:09:42,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (1/1) ... [2021-11-23 17:09:42,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:42,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:42,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:09:42,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:09:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:09:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:09:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:09:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:09:42,653 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:09:42,655 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:09:45,849 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:09:45,863 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:09:45,864 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:09:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:45 BoogieIcfgContainer [2021-11-23 17:09:45,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:09:45,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:09:45,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:09:45,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:09:45,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:09:41" (1/3) ... [2021-11-23 17:09:45,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fad66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:45, skipping insertion in model container [2021-11-23 17:09:45,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:42" (2/3) ... [2021-11-23 17:09:45,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fad66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:09:45, skipping insertion in model container [2021-11-23 17:09:45,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:45" (3/3) ... [2021-11-23 17:09:45,878 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label17.c [2021-11-23 17:09:45,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:09:45,884 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:09:45,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:09:45,948 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=FINITE_AUTOMATA, 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 [2021-11-23 17:09:45,949 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:09:45,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-11-23 17:09:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 17:09:45,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:45,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:45,980 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1722039382, now seen corresponding path program 1 times [2021-11-23 17:09:45,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:45,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436832239] [2021-11-23 17:09:45,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:45,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:46,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:46,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:46,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:09:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:46,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:09:46,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:46,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:46,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:46,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436832239] [2021-11-23 17:09:46,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [436832239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:46,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:09:46,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:09:46,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34809540] [2021-11-23 17:09:46,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:46,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:09:46,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:46,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:09:46,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:09:46,380 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:49,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:49,782 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-11-23 17:09:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:09:49,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-23 17:09:49,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:49,798 INFO L225 Difference]: With dead ends: 567 [2021-11-23 17:09:49,798 INFO L226 Difference]: Without dead ends: 282 [2021-11-23 17:09:49,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:09:49,807 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 132 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:49,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 103 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-23 17:09:49,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-23 17:09:49,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-23 17:09:49,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.395017793594306) internal successors, (392), 281 states have internal predecessors, (392), 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) [2021-11-23 17:09:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 392 transitions. [2021-11-23 17:09:49,872 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 392 transitions. Word has length 30 [2021-11-23 17:09:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:49,872 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 392 transitions. [2021-11-23 17:09:49,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:09:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 392 transitions. [2021-11-23 17:09:49,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 17:09:49,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:49,878 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:49,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:50,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:50,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:50,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:50,082 INFO L85 PathProgramCache]: Analyzing trace with hash -496546090, now seen corresponding path program 1 times [2021-11-23 17:09:50,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:50,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181790500] [2021-11-23 17:09:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:50,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:50,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:50,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:50,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:09:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:50,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:09:50,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:50,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:09:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:53,636 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:09:53,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181790500] [2021-11-23 17:09:53,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181790500] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:09:53,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [74944070] [2021-11-23 17:09:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:53,638 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:53,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:09:53,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:09:53,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-23 17:09:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:53,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:09:53,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:09:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:09:55,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:09:55,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [74944070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:09:55,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 17:09:55,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3] total 10 [2021-11-23 17:09:55,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609097882] [2021-11-23 17:09:55,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:09:55,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 17:09:55,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:09:55,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 17:09:55,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:09:55,122 INFO L87 Difference]: Start difference. First operand 282 states and 392 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2021-11-23 17:09:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:09:59,295 INFO L93 Difference]: Finished difference Result 701 states and 997 transitions. [2021-11-23 17:09:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:09:59,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-23 17:09:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:09:59,300 INFO L225 Difference]: With dead ends: 701 [2021-11-23 17:09:59,300 INFO L226 Difference]: Without dead ends: 421 [2021-11-23 17:09:59,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:09:59,303 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 927 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:09:59,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 10 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-23 17:09:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-23 17:09:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-23 17:09:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3595238095238096) internal successors, (571), 420 states have internal predecessors, (571), 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) [2021-11-23 17:09:59,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 571 transitions. [2021-11-23 17:09:59,334 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 571 transitions. Word has length 96 [2021-11-23 17:09:59,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:09:59,335 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 571 transitions. [2021-11-23 17:09:59,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2021-11-23 17:09:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 571 transitions. [2021-11-23 17:09:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 17:09:59,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:09:59,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:09:59,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:59,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:09:59,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:09:59,741 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:09:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:09:59,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1231744932, now seen corresponding path program 1 times [2021-11-23 17:09:59,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:09:59,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163545597] [2021-11-23 17:09:59,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:09:59,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:09:59,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:09:59,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:09:59,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:09:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:09:59,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:09:59,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:00,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:10:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:04,206 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:04,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163545597] [2021-11-23 17:10:04,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163545597] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 17:10:04,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 17:10:04,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-23 17:10:04,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912205732] [2021-11-23 17:10:04,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:10:04,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:10:04,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:04,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:10:04,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:10:04,210 INFO L87 Difference]: Start difference. First operand 421 states and 571 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-11-23 17:10:11,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:10:38,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:10:45,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 17:10:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:10:45,484 INFO L93 Difference]: Finished difference Result 998 states and 1399 transitions. [2021-11-23 17:10:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:10:45,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-23 17:10:45,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:10:45,493 INFO L225 Difference]: With dead ends: 998 [2021-11-23 17:10:45,493 INFO L226 Difference]: Without dead ends: 699 [2021-11-23 17:10:45,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:10:45,496 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 77 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:10:45,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 17 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 41.2s Time] [2021-11-23 17:10:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-23 17:10:45,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 421. [2021-11-23 17:10:45,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3523809523809525) internal successors, (568), 420 states have internal predecessors, (568), 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) [2021-11-23 17:10:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 568 transitions. [2021-11-23 17:10:45,526 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 568 transitions. Word has length 105 [2021-11-23 17:10:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:10:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 568 transitions. [2021-11-23 17:10:45,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2021-11-23 17:10:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 568 transitions. [2021-11-23 17:10:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-23 17:10:45,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:45,530 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:45,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:45,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:45,742 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1024513825, now seen corresponding path program 1 times [2021-11-23 17:10:45,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:45,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028241546] [2021-11-23 17:10:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:45,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:45,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:45,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:45,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:10:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:45,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:10:45,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:46,221 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:10:46,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:46,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028241546] [2021-11-23 17:10:46,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028241546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:10:46,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:10:46,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:10:46,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623740974] [2021-11-23 17:10:46,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:10:46,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:10:46,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:10:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:46,225 INFO L87 Difference]: Start difference. First operand 421 states and 568 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2021-11-23 17:10:49,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:10:49,605 INFO L93 Difference]: Finished difference Result 979 states and 1373 transitions. [2021-11-23 17:10:49,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:10:49,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-11-23 17:10:49,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:10:49,611 INFO L225 Difference]: With dead ends: 979 [2021-11-23 17:10:49,612 INFO L226 Difference]: Without dead ends: 699 [2021-11-23 17:10:49,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:49,614 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 65 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:10:49,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 82 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-23 17:10:49,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-23 17:10:49,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-11-23 17:10:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2234957020057307) internal successors, (854), 698 states have internal predecessors, (854), 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) [2021-11-23 17:10:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 854 transitions. [2021-11-23 17:10:49,642 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 854 transitions. Word has length 107 [2021-11-23 17:10:49,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:10:49,643 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 854 transitions. [2021-11-23 17:10:49,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2021-11-23 17:10:49,644 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 854 transitions. [2021-11-23 17:10:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-23 17:10:49,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:49,648 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:49,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:49,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:49,867 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:49,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash -108668323, now seen corresponding path program 1 times [2021-11-23 17:10:49,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:49,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290349061] [2021-11-23 17:10:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:49,869 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:49,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:49,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:49,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:10:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:49,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:10:49,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:50,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:10:50,425 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:50,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290349061] [2021-11-23 17:10:50,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290349061] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:10:50,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:10:50,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:10:50,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960154156] [2021-11-23 17:10:50,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:10:50,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:10:50,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:50,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:10:50,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:50,428 INFO L87 Difference]: Start difference. First operand 699 states and 854 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-23 17:10:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:10:54,448 INFO L93 Difference]: Finished difference Result 1535 states and 1965 transitions. [2021-11-23 17:10:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:10:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-23 17:10:54,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:10:54,456 INFO L225 Difference]: With dead ends: 1535 [2021-11-23 17:10:54,456 INFO L226 Difference]: Without dead ends: 977 [2021-11-23 17:10:54,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:54,458 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 76 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:10:54,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 214 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-23 17:10:54,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-23 17:10:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838. [2021-11-23 17:10:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.1983273596176822) internal successors, (1003), 837 states have internal predecessors, (1003), 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) [2021-11-23 17:10:54,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1003 transitions. [2021-11-23 17:10:54,491 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1003 transitions. Word has length 164 [2021-11-23 17:10:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:10:54,491 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1003 transitions. [2021-11-23 17:10:54,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2021-11-23 17:10:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1003 transitions. [2021-11-23 17:10:54,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-23 17:10:54,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:54,496 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:54,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:54,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:54,705 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1880634543, now seen corresponding path program 1 times [2021-11-23 17:10:54,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:54,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108945938] [2021-11-23 17:10:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:54,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:54,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:54,708 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:54,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:10:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:54,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:10:54,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:10:55,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:10:55,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:55,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108945938] [2021-11-23 17:10:55,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108945938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:10:55,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:10:55,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:10:55,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883133050] [2021-11-23 17:10:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:10:55,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:10:55,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:55,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:10:55,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:55,143 INFO L87 Difference]: Start difference. First operand 838 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:10:58,395 INFO L93 Difference]: Finished difference Result 1813 states and 2233 transitions. [2021-11-23 17:10:58,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:10:58,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-11-23 17:10:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:10:58,403 INFO L225 Difference]: With dead ends: 1813 [2021-11-23 17:10:58,404 INFO L226 Difference]: Without dead ends: 1116 [2021-11-23 17:10:58,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:58,407 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 115 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:10:58,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 210 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-23 17:10:58,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-11-23 17:10:58,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-11-23 17:10:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.180269058295964) internal successors, (1316), 1115 states have internal predecessors, (1316), 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) [2021-11-23 17:10:58,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1316 transitions. [2021-11-23 17:10:58,441 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1316 transitions. Word has length 209 [2021-11-23 17:10:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:10:58,442 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1316 transitions. [2021-11-23 17:10:58,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:10:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1316 transitions. [2021-11-23 17:10:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-23 17:10:58,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:58,447 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:58,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:10:58,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:10:58,661 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1161377560, now seen corresponding path program 1 times [2021-11-23 17:10:58,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:58,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572420201] [2021-11-23 17:10:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:58,664 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:58,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:58,665 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:58,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 17:10:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:58,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:10:58,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:10:59,379 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:10:59,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:10:59,380 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:10:59,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572420201] [2021-11-23 17:10:59,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572420201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:10:59,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:10:59,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:10:59,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124023427] [2021-11-23 17:10:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:10:59,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:10:59,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:10:59,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:10:59,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:10:59,393 INFO L87 Difference]: Start difference. First operand 1116 states and 1316 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2021-11-23 17:11:02,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:11:02,349 INFO L93 Difference]: Finished difference Result 2369 states and 2889 transitions. [2021-11-23 17:11:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:11:02,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2021-11-23 17:11:02,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:11:02,358 INFO L225 Difference]: With dead ends: 2369 [2021-11-23 17:11:02,358 INFO L226 Difference]: Without dead ends: 1394 [2021-11-23 17:11:02,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:11:02,361 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 75 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-23 17:11:02,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 195 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-23 17:11:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-11-23 17:11:02,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-11-23 17:11:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.176597272074659) internal successors, (1639), 1393 states have internal predecessors, (1639), 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) [2021-11-23 17:11:02,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1639 transitions. [2021-11-23 17:11:02,398 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1639 transitions. Word has length 219 [2021-11-23 17:11:02,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:11:02,399 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1639 transitions. [2021-11-23 17:11:02,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2021-11-23 17:11:02,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1639 transitions. [2021-11-23 17:11:02,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-23 17:11:02,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:11:02,406 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:11:02,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:02,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:11:02,619 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:11:02,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:11:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash 321679273, now seen corresponding path program 1 times [2021-11-23 17:11:02,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:11:02,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456435042] [2021-11-23 17:11:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:02,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:11:02,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:11:02,623 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:11:02,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 17:11:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:02,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:11:02,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 24 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:04,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 24 proven. 141 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:11:28,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:11:28,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456435042] [2021-11-23 17:11:28,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456435042] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:28,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [277087563] [2021-11-23 17:11:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:28,744 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:28,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:11:28,746 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:11:28,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-23 17:11:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:28,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:11:28,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:30,702 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-23 17:11:30,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:11:30,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [277087563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:11:30,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 17:11:30,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4] total 13 [2021-11-23 17:11:30,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173834055] [2021-11-23 17:11:30,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:11:30,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 17:11:30,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:11:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 17:11:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-11-23 17:11:30,707 INFO L87 Difference]: Start difference. First operand 1394 states and 1639 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2021-11-23 17:11:35,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:11:35,507 INFO L93 Difference]: Finished difference Result 3367 states and 4081 transitions. [2021-11-23 17:11:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 17:11:35,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2021-11-23 17:11:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:11:35,515 INFO L225 Difference]: With dead ends: 3367 [2021-11-23 17:11:35,516 INFO L226 Difference]: Without dead ends: 1672 [2021-11-23 17:11:35,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-11-23 17:11:35,519 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 473 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:11:35,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [473 Valid, 47 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-23 17:11:35,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-11-23 17:11:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2021-11-23 17:11:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.1855176540993417) internal successors, (1981), 1671 states have internal predecessors, (1981), 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) [2021-11-23 17:11:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1981 transitions. [2021-11-23 17:11:35,563 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1981 transitions. Word has length 278 [2021-11-23 17:11:35,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:11:35,564 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 1981 transitions. [2021-11-23 17:11:35,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2021-11-23 17:11:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1981 transitions. [2021-11-23 17:11:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-23 17:11:35,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:11:35,572 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:11:35,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:35,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:11:35,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:11:35,987 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:11:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:11:35,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1496887766, now seen corresponding path program 1 times [2021-11-23 17:11:35,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:11:35,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368730995] [2021-11-23 17:11:35,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:35,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:11:35,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:11:35,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:11:35,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 17:11:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:36,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:11:36,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:11:38,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 133 proven. 128 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:11:54,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:11:54,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368730995] [2021-11-23 17:11:54,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368730995] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:54,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1645333462] [2021-11-23 17:11:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:54,030 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:11:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:11:54,031 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:11:54,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-23 17:11:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:54,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:11:54,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 233 proven. 28 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:11:56,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:11:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 233 proven. 28 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:11:57,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1645333462] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:11:57,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350623410] [2021-11-23 17:11:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:11:57,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:11:57,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:11:57,469 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:11:57,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-23 17:11:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:11:57,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:11:57,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:11:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-11-23 17:11:58,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:11:58,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350623410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:11:58,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-23 17:11:58,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 11 [2021-11-23 17:11:58,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545987414] [2021-11-23 17:11:58,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:11:58,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:11:58,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:11:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:11:58,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:11:58,217 INFO L87 Difference]: Start difference. First operand 1672 states and 1981 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2021-11-23 17:12:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:02,630 INFO L93 Difference]: Finished difference Result 4176 states and 4945 transitions. [2021-11-23 17:12:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:12:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-11-23 17:12:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:02,648 INFO L225 Difference]: With dead ends: 4176 [2021-11-23 17:12:02,648 INFO L226 Difference]: Without dead ends: 2645 [2021-11-23 17:12:02,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1645 GetRequests, 1636 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:12:02,652 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:02,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 201 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-23 17:12:02,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2021-11-23 17:12:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2645. [2021-11-23 17:12:02,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1478819969742813) internal successors, (3035), 2644 states have internal predecessors, (3035), 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) [2021-11-23 17:12:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3035 transitions. [2021-11-23 17:12:02,740 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3035 transitions. Word has length 330 [2021-11-23 17:12:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:02,741 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 3035 transitions. [2021-11-23 17:12:02,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2021-11-23 17:12:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3035 transitions. [2021-11-23 17:12:02,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-23 17:12:02,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:12:02,751 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:02,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:02,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:03,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:03,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:03,370 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:12:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:12:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2132057286, now seen corresponding path program 1 times [2021-11-23 17:12:03,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:12:03,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390886600] [2021-11-23 17:12:03,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:03,373 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:12:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:12:03,373 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:12:03,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 17:12:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:03,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:12:03,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 60 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:04,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 266 proven. 8 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-23 17:12:11,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:12:11,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390886600] [2021-11-23 17:12:11,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [390886600] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:12:11,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1916585761] [2021-11-23 17:12:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:12:11,281 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:12:11,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:12:11,281 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:12:11,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-23 17:12:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:12:11,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 17:12:11,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:12:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:12:12,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:12:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-23 17:12:25,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1916585761] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 17:12:25,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 17:12:25,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4, 5] total 11 [2021-11-23 17:12:25,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428793299] [2021-11-23 17:12:25,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:12:25,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:12:25,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:12:25,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:12:25,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:12:25,410 INFO L87 Difference]: Start difference. First operand 2645 states and 3035 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2021-11-23 17:12:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:12:37,791 INFO L93 Difference]: Finished difference Result 5981 states and 6879 transitions. [2021-11-23 17:12:37,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:12:37,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2021-11-23 17:12:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:12:37,794 INFO L225 Difference]: With dead ends: 5981 [2021-11-23 17:12:37,794 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:12:37,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1370 GetRequests, 1360 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-23 17:12:37,798 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 168 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-23 17:12:37,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 8 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2021-11-23 17:12:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:12:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:12:37,800 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) [2021-11-23 17:12:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:12:37,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 343 [2021-11-23 17:12:37,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:12:37,800 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:12:37,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2021-11-23 17:12:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:12:37,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:12:37,803 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:12:37,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:38,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 17:12:38,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:12:38,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-11-23 17:12:43,106 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-23 17:12:43,107 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,108 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,109 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-11-23 17:12:43,110 INFO L858 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-11-23 17:12:43,111 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-11-23 17:12:43,112 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-11-23 17:12:43,113 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:12:43,114 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-23 17:12:43,115 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-23 17:12:43,115 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-23 17:12:43,115 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-23 17:12:43,115 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-23 17:12:43,116 INFO L854 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~a12~0))) (.cse1 (not (= (_ bv14 32) ~a4~0))) (.cse6 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse5 (= (_ bv10 32) ~a19~0)) (.cse4 (bvadd (bvmul (bvsdiv (bvmul ~a1~0 (_ bv10 32)) (_ bv4294967287 32)) (_ bv5 32)) (_ bv4294633610 32))) (.cse2 (= (_ bv1 32) ~a10~0)) (.cse3 (or (not (bvsge (_ bv218 32) ~a1~0)) .cse0 .cse1 .cse6))) (or (= ~a19~0 (_ bv9 32)) (and (or (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse0 (not (= (_ bv0 32) ~a10~0)) .cse1 (not (= (_ bv6 32) ~a19~0))) (not .cse2) .cse3) (= (_ bv8 32) ~a19~0) (= (_ bv2 32) ~a10~0) (and (not (bvslt (_ bv38 32) .cse4)) .cse5 .cse2) (and (or .cse0 .cse1 (not .cse5) (not (= (_ bv2 32) |ULTIMATE.start_calculate_output_~input#1|)) (not (bvsge (_ bv218 32) .cse4)) .cse6) .cse2 .cse3)))) [2021-11-23 17:12:43,116 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-11-23 17:12:43,116 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-11-23 17:12:43,116 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,120 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 17:12:43,121 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-23 17:12:43,122 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-23 17:12:43,122 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-23 17:12:43,122 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-11-23 17:12:43,122 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-11-23 17:12:43,122 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,123 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-23 17:12:43,124 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-11-23 17:12:43,125 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,126 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,126 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,126 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,127 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:12:43,127 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,127 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-11-23 17:12:43,127 INFO L858 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-11-23 17:12:43,127 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-11-23 17:12:43,128 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-11-23 17:12:43,128 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-23 17:12:43,128 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-23 17:12:43,128 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-23 17:12:43,128 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-23 17:12:43,129 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-23 17:12:43,129 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-11-23 17:12:43,130 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-11-23 17:12:43,130 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-11-23 17:12:43,131 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~a12~0))) (.cse1 (not (= (_ bv14 32) ~a4~0))) (.cse6 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse5 (= (_ bv10 32) ~a19~0)) (.cse4 (bvadd (bvmul (bvsdiv (bvmul ~a1~0 (_ bv10 32)) (_ bv4294967287 32)) (_ bv5 32)) (_ bv4294633610 32))) (.cse2 (= (_ bv1 32) ~a10~0)) (.cse3 (or (not (bvsge (_ bv218 32) ~a1~0)) .cse0 .cse1 .cse6))) (or (= ~a19~0 (_ bv9 32)) (and (or (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse0 (not (= (_ bv0 32) ~a10~0)) .cse1 (not (= (_ bv6 32) ~a19~0))) (not .cse2) .cse3) (= (_ bv8 32) ~a19~0) (= (_ bv2 32) ~a10~0) (and (not (bvslt (_ bv38 32) .cse4)) .cse5 .cse2) (and (or .cse0 .cse1 (not .cse5) (not (= (_ bv2 32) |ULTIMATE.start_calculate_output_~input#1|)) (not (bvsge (_ bv218 32) .cse4)) .cse6) .cse2 .cse3)))) [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,132 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-23 17:12:43,133 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:12:43,134 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 104) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,135 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,136 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,136 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,136 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,136 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-23 17:12:43,137 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-23 17:12:43,138 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-23 17:12:43,138 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-23 17:12:43,141 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:12:43,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:12:43,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:12:43 BoogieIcfgContainer [2021-11-23 17:12:43,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:12:43,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:12:43,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:12:43,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:12:43,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:09:45" (3/4) ... [2021-11-23 17:12:43,184 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:12:43,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:12:43,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 17:12:43,219 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:12:43,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:12:43,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:12:43,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:12:43,368 INFO L158 Benchmark]: Toolchain (without parser) took 181983.24ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 60.9MB in the beginning and 48.4MB in the end (delta: 12.5MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,369 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 79.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:12:43,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 844.17ms. Allocated memory is still 79.7MB. Free memory was 60.8MB in the beginning and 41.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.87ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 41.9MB in the beginning and 84.1MB in the end (delta: -42.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,370 INFO L158 Benchmark]: Boogie Preprocessor took 106.84ms. Allocated memory is still 104.9MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,371 INFO L158 Benchmark]: RCFGBuilder took 3417.80ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 56.7MB in the end (delta: 23.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,372 INFO L158 Benchmark]: TraceAbstraction took 177309.54ms. Allocated memory is still 104.9MB. Free memory was 56.3MB in the beginning and 63.1MB in the end (delta: -6.8MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,372 INFO L158 Benchmark]: Witness Printer took 187.84ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 48.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:12:43,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 79.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 844.17ms. Allocated memory is still 79.7MB. Free memory was 60.8MB in the beginning and 41.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.87ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 41.9MB in the beginning and 84.1MB in the end (delta: -42.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.84ms. Allocated memory is still 104.9MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3417.80ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 56.7MB in the end (delta: 23.2MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 177309.54ms. Allocated memory is still 104.9MB. Free memory was 56.3MB in the beginning and 63.1MB in the end (delta: -6.8MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Witness Printer took 187.84ms. Allocated memory is still 104.9MB. Free memory was 63.1MB in the beginning and 48.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 104]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 177.2s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 84.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2130 SdHoareTripleChecker+Valid, 83.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2130 mSDsluCounter, 1087 SdHoareTripleChecker+Invalid, 74.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 1226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4356 IncrementalHoareTripleChecker+Invalid, 5582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1226 mSolverCounterUnsat, 1014 mSDtfsCounter, 4356 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5065 GetRequests, 5017 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2645occurred in iteration=9, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 417 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 253 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5006 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1076 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 81.7s InterpolantComputationTime, 3258 NumberOfCodeBlocks, 3258 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5061 ConstructedInterpolants, 0 QuantifiedInterpolants, 25636 SizeOfPredicates, 51 NumberOfNonLiveVariables, 4008 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 22 InterpolantComputations, 10 PerfectInterpolantSequences, 2632/4087 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: 592]: Loop Invariant Derived loop invariant: ((((a19 == 9bv32 || ((((((!~bvslt32(4294967283bv32, a1) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) || !(6bv32 == a19)) && !(1bv32 == a10)) && (((!~bvsge32(218bv32, a1) || !(0bv32 == a12)) || !(14bv32 == a4)) || !~bvslt32(38bv32, a1)))) || 8bv32 == a19) || 2bv32 == a10) || ((!~bvslt32(38bv32, ~bvadd64(~bvmul32(~bvsdiv32(~bvmul32(a1, 10bv32), 4294967287bv32), 5bv32), 4294633610bv32)) && 10bv32 == a19) && 1bv32 == a10)) || (((((((!(0bv32 == a12) || !(14bv32 == a4)) || !(10bv32 == a19)) || !(2bv32 == input)) || !~bvsge32(218bv32, ~bvadd64(~bvmul32(~bvsdiv32(~bvmul32(a1, 10bv32), 4294967287bv32), 5bv32), 4294633610bv32))) || !~bvslt32(38bv32, a1)) && 1bv32 == a10) && (((!~bvsge32(218bv32, a1) || !(0bv32 == a12)) || !(14bv32 == a4)) || !~bvslt32(38bv32, a1))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((a19 == 9bv32 || ((((((!~bvslt32(4294967283bv32, a1) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) || !(6bv32 == a19)) && !(1bv32 == a10)) && (((!~bvsge32(218bv32, a1) || !(0bv32 == a12)) || !(14bv32 == a4)) || !~bvslt32(38bv32, a1)))) || 8bv32 == a19) || 2bv32 == a10) || ((!~bvslt32(38bv32, ~bvadd64(~bvmul32(~bvsdiv32(~bvmul32(a1, 10bv32), 4294967287bv32), 5bv32), 4294633610bv32)) && 10bv32 == a19) && 1bv32 == a10)) || (((((((!(0bv32 == a12) || !(14bv32 == a4)) || !(10bv32 == a19)) || !(2bv32 == input)) || !~bvsge32(218bv32, ~bvadd64(~bvmul32(~bvsdiv32(~bvmul32(a1, 10bv32), 4294967287bv32), 5bv32), 4294633610bv32))) || !~bvslt32(38bv32, a1)) && 1bv32 == a10) && (((!~bvsge32(218bv32, a1) || !(0bv32 == a12)) || !(14bv32 == a4)) || !~bvslt32(38bv32, a1))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 17:12:43,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_230452f7-0135-4ad8-8a7f-34ebc32f78b9/bin/utaipan-fb15Y9Yzbl/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