./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c -s /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan --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 4ea6fc2da400c6409d02bc395e547eb6158b1e4a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c -s /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan --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 4ea6fc2da400c6409d02bc395e547eb6158b1e4a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:40:01,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:40:01,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:40:01,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:40:01,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:40:01,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:40:01,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:40:01,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:40:01,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:40:01,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:40:01,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:40:01,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:40:01,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:40:01,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:40:01,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:40:01,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:40:01,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:40:01,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:40:01,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:40:01,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:40:01,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:40:01,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:40:01,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:40:01,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:40:01,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:40:01,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:40:01,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:40:01,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:40:01,397 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:40:01,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:40:01,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:40:01,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:40:01,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:40:01,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:40:01,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:40:01,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:40:01,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:40:01,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:40:01,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:40:01,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:40:01,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:40:01,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:40:01,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:40:01,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:40:01,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:40:01,428 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:40:01,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:40:01,428 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:40:01,428 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:40:01,429 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:40:01,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:40:01,429 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:40:01,429 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:40:01,429 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:40:01,430 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:40:01,430 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:40:01,430 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:40:01,431 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:40:01,431 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:40:01,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:40:01,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:40:01,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:40:01,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:40:01,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:40:01,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:40:01,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:40:01,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:40:01,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:40:01,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:40:01,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:40:01,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:40:01,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:40:01,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:40:01,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:40:01,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:40:01,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:40:01,434 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:40:01,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:40:01,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:40:01,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:40:01,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:40:01,435 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-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ea6fc2da400c6409d02bc395e547eb6158b1e4a [2020-12-09 04:40:01,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:40:01,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:40:01,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:40:01,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:40:01,631 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:40:01,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2020-12-09 04:40:01,675 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/ef815a994/b793816abe0741af9fb54a543056f72b/FLAGac7b60737 [2020-12-09 04:40:02,139 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:40:02,140 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2020-12-09 04:40:02,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/ef815a994/b793816abe0741af9fb54a543056f72b/FLAGac7b60737 [2020-12-09 04:40:02,164 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/ef815a994/b793816abe0741af9fb54a543056f72b [2020-12-09 04:40:02,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:40:02,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:40:02,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:40:02,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:40:02,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:40:02,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774392ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02, skipping insertion in model container [2020-12-09 04:40:02,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:40:02,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:40:02,347 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2020-12-09 04:40:02,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:40:02,461 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:40:02,477 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2020-12-09 04:40:02,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:40:02,544 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:40:02,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02 WrapperNode [2020-12-09 04:40:02,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:40:02,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:40:02,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:40:02,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:40:02,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:40:02,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:40:02,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:40:02,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:40:02,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... [2020-12-09 04:40:02,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:40:02,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:40:02,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:40:02,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:40:02,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:40:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:40:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:40:02,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:40:02,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:40:13,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:40:13,259 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 04:40:13,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:40:13 BoogieIcfgContainer [2020-12-09 04:40:13,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:40:13,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:40:13,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:40:13,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:40:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:40:02" (1/3) ... [2020-12-09 04:40:13,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d44273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:40:13, skipping insertion in model container [2020-12-09 04:40:13,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:02" (2/3) ... [2020-12-09 04:40:13,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d44273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:40:13, skipping insertion in model container [2020-12-09 04:40:13,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:40:13" (3/3) ... [2020-12-09 04:40:13,267 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label09.c [2020-12-09 04:40:13,277 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:40:13,279 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:40:13,286 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:40:13,302 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:40:13,302 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:40:13,302 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:40:13,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:40:13,302 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:40:13,302 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:40:13,302 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:40:13,303 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:40:13,310 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 04:40:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 04:40:13,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:13,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 04:40:13,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:13,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1037749327, now seen corresponding path program 1 times [2020-12-09 04:40:13,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:40:13,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669299672] [2020-12-09 04:40:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:40:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:13,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:13,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669299672] [2020-12-09 04:40:13,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:13,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:40:13,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64335837] [2020-12-09 04:40:13,457 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:13,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:40:13,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:13,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:13,472 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 04:40:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:13,540 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 04:40:13,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:40:13,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 04:40:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:13,546 INFO L225 Difference]: With dead ends: 23 [2020-12-09 04:40:13,546 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 04:40:13,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 04:40:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 04:40:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 04:40:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 04:40:13,568 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 04:40:13,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:13,569 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 04:40:13,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:40:13,569 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 04:40:13,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 04:40:13,569 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:13,569 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 04:40:13,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:40:13,570 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:13,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:13,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1214812511, now seen corresponding path program 1 times [2020-12-09 04:40:13,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:40:13,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119320435] [2020-12-09 04:40:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:40:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:14,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119320435] [2020-12-09 04:40:14,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278790401] [2020-12-09 04:40:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:40:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:14,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:40:14,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:14,311 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1339 DAG size of output: 83 [2020-12-09 04:40:14,360 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,364 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,365 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,368 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,369 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,373 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,378 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,381 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,386 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,395 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,396 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,400 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,406 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,409 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,411 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,418 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,427 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,428 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,429 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,432 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,437 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,441 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,443 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,444 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,447 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,451 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:40:14,454 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,455 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,459 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,465 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,466 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,469 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,473 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,474 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,475 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,476 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,477 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,477 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,478 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,479 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,485 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,487 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,490 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,494 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,500 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,502 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,503 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,504 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,507 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:40:14,509 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,512 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,513 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,514 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,518 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:40:14,525 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 04:40:14,526 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,527 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,527 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,528 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 04:40:14,533 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,536 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:40:14,537 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,538 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,540 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,544 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 04:40:14,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 04:40:14,546 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,547 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,549 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 04:40:14,551 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 04:40:14,552 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 04:40:14,553 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 04:40:14,555 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 04:40:14,562 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 14, 4, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,562 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 04:40:14,563 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,563 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,564 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,565 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,566 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,566 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,566 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-09 04:40:14,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,567 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,568 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,569 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,569 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,570 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,570 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,570 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 04:40:14,571 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,572 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 04:40:14,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,575 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,576 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,576 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,578 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,582 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,584 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,584 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,588 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,591 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,597 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,600 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,601 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,604 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,604 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,631 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,632 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,633 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,636 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,637 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 04:40:14,638 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,639 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,639 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,641 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,643 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 04:40:14,644 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,644 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,647 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,647 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,650 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,652 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,655 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 04:40:14,655 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,658 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,659 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,660 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,662 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,664 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,666 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,667 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,668 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,671 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,672 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,672 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,673 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,675 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,676 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,678 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,681 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 04:40:14,681 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,683 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,684 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,685 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,687 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,689 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,690 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,692 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,694 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,694 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,697 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,697 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,699 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,702 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,702 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,705 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,705 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,707 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,710 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,713 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 04:40:14,714 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,714 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,716 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,717 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,718 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,722 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,725 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,726 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,726 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,730 INFO L639 QuantifierPusher]: Distributing 18 conjuncts over 2 disjuncts [2020-12-09 04:40:14,731 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 04:40:14,732 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,733 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,735 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,737 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 04:40:14,738 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,739 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,740 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,741 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,742 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,746 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,746 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,749 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 04:40:14,750 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 04:40:14,751 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,752 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,754 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,756 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 04:40:14,756 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,759 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,762 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,762 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,765 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,766 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,770 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,771 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 04:40:14,772 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,773 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,775 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,776 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,777 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,779 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,779 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,781 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,782 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,784 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,786 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,787 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,789 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,790 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,793 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,795 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,796 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,799 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,803 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,803 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,805 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,807 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,808 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,810 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 04:40:14,811 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,814 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,816 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,817 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,819 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 3 disjuncts [2020-12-09 04:40:14,820 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 04:40:14,821 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,822 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,824 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,826 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 04:40:14,826 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,829 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,829 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,831 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,832 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,834 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,839 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,839 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,843 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 04:40:14,843 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,844 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,845 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,847 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,849 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,849 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 04:40:14,850 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,851 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,852 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,854 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,854 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,857 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,857 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,860 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,861 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,863 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,866 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 04:40:14,866 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,869 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,870 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,874 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,876 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,877 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,879 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,880 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,884 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 04:40:14,885 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,886 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,889 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,889 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,890 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,893 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,894 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,897 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 04:40:14,897 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,899 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:40:14,902 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,902 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,904 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 04:40:14,906 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 04:40:14,907 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:40:14,911 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,915 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 04:40:14,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,917 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 04:40:14,918 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,920 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,921 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,922 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,924 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,925 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,926 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,928 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 04:40:14,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,929 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,932 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,933 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,937 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,939 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,940 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,941 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,943 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,944 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,945 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,947 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 04:40:14,948 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,949 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,951 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 04:40:14,951 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,952 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 04:40:14,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,954 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,955 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,958 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:40:14,958 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:40:14,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:14,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:40:15,340 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 2658 DAG size of output: 2498 [2020-12-09 04:40:15,360 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 04:40:15,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [729597738] [2020-12-09 04:40:15,376 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 04:40:15,376 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 04:40:15,379 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 04:40:15,383 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 04:40:15,383 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 04:40:15,513 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 40 [2020-12-09 04:40:15,953 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 40 [2020-12-09 04:40:16,900 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 2482 DAG size of output: 2341 [2020-12-09 04:40:32,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 04:40:32,965 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2020-12-09 04:40:32,977 INFO L168 Benchmark]: Toolchain (without parser) took 30806.21 ms. Allocated memory was 96.5 MB in the beginning and 723.5 MB in the end (delta: 627.0 MB). Free memory was 57.1 MB in the beginning and 457.6 MB in the end (delta: -400.5 MB). Peak memory consumption was 523.9 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,979 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 96.5 MB. Free memory is still 75.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:40:32,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.18 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 51.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.10 ms. Allocated memory is still 96.5 MB. Free memory was 50.8 MB in the beginning and 41.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,984 INFO L168 Benchmark]: Boogie Preprocessor took 86.33 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 41.4 MB in the beginning and 88.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,987 INFO L168 Benchmark]: RCFGBuilder took 10535.37 ms. Allocated memory was 119.5 MB in the beginning and 337.6 MB in the end (delta: 218.1 MB). Free memory was 89.1 MB in the beginning and 86.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 256.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,989 INFO L168 Benchmark]: TraceAbstraction took 19710.37 ms. Allocated memory was 337.6 MB in the beginning and 723.5 MB in the end (delta: 385.9 MB). Free memory was 85.3 MB in the beginning and 457.6 MB in the end (delta: -372.3 MB). Peak memory consumption was 311.4 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:32,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 96.5 MB. Free memory is still 75.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.18 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 51.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.10 ms. Allocated memory is still 96.5 MB. Free memory was 50.8 MB in the beginning and 41.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.33 ms. Allocated memory was 96.5 MB in the beginning and 119.5 MB in the end (delta: 23.1 MB). Free memory was 41.4 MB in the beginning and 88.6 MB in the end (delta: -47.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10535.37 ms. Allocated memory was 119.5 MB in the beginning and 337.6 MB in the end (delta: 218.1 MB). Free memory was 89.1 MB in the beginning and 86.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 256.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19710.37 ms. Allocated memory was 337.6 MB in the beginning and 723.5 MB in the end (delta: 385.9 MB). Free memory was 85.3 MB in the beginning and 457.6 MB in the end (delta: -372.3 MB). Peak memory consumption was 311.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:40:34,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:40:34,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:40:34,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:40:34,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:40:34,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:40:34,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:40:34,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:40:34,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:40:34,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:40:34,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:40:34,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:40:34,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:40:34,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:40:34,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:40:34,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:40:34,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:40:34,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:40:34,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:40:34,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:40:34,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:40:34,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:40:34,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:40:34,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:40:34,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:40:34,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:40:34,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:40:34,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:40:34,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:40:34,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:40:34,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:40:34,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:40:34,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:40:34,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:40:34,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:40:34,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:40:34,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:40:34,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:40:34,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:40:34,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:40:34,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:40:34,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 04:40:34,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:40:34,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:40:34,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:40:34,628 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:40:34,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:40:34,628 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:40:34,629 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:40:34,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:40:34,629 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:40:34,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:40:34,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:40:34,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:40:34,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:40:34,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:40:34,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:40:34,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:40:34,631 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:40:34,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 04:40:34,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 04:40:34,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:40:34,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:40:34,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:40:34,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:40:34,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:40:34,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 04:40:34,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:40:34,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:40:34,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:40:34,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:40:34,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:40:34,635 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-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ea6fc2da400c6409d02bc395e547eb6158b1e4a [2020-12-09 04:40:34,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:40:34,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:40:34,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:40:34,877 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:40:34,877 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:40:34,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2020-12-09 04:40:34,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/f27608eb4/b82fb1413b1e44c9bda96245c75f851b/FLAG9d890a81d [2020-12-09 04:40:35,387 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:40:35,387 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2020-12-09 04:40:35,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/f27608eb4/b82fb1413b1e44c9bda96245c75f851b/FLAG9d890a81d [2020-12-09 04:40:35,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/data/f27608eb4/b82fb1413b1e44c9bda96245c75f851b [2020-12-09 04:40:35,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:40:35,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:40:35,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:40:35,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:40:35,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:40:35,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58348d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35, skipping insertion in model container [2020-12-09 04:40:35,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:40:35,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:40:35,604 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2020-12-09 04:40:35,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:40:35,751 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:40:35,768 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2020-12-09 04:40:35,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:40:35,884 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:40:35,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35 WrapperNode [2020-12-09 04:40:35,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:40:35,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:40:35,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:40:35,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:40:35,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:40:35,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:40:35,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:40:35,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:40:35,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:35,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:36,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:36,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... [2020-12-09 04:40:36,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:40:36,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:40:36,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:40:36,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:40:36,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:40:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 04:40:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:40:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:40:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:40:38,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:40:38,384 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 04:40:38,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:40:38 BoogieIcfgContainer [2020-12-09 04:40:38,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:40:38,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:40:38,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:40:38,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:40:38,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:40:35" (1/3) ... [2020-12-09 04:40:38,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9fe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:40:38, skipping insertion in model container [2020-12-09 04:40:38,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:40:35" (2/3) ... [2020-12-09 04:40:38,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9fe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:40:38, skipping insertion in model container [2020-12-09 04:40:38,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:40:38" (3/3) ... [2020-12-09 04:40:38,391 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label09.c [2020-12-09 04:40:38,400 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:40:38,402 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 04:40:38,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 04:40:38,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:40:38,426 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:40:38,426 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:40:38,426 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:40:38,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:40:38,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:40:38,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:40:38,427 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:40:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 04:40:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-09 04:40:38,444 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:38,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:40:38,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:38,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:38,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2020-12-09 04:40:38,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:38,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458190889] [2020-12-09 04:40:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:38,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:40:38,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:38,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:40:38,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458190889] [2020-12-09 04:40:38,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:38,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:40:38,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713985570] [2020-12-09 04:40:38,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:38,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:38,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:38,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:38,605 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 04:40:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:41,938 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 04:40:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:40:41,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-09 04:40:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:41,950 INFO L225 Difference]: With dead ends: 669 [2020-12-09 04:40:41,950 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 04:40:41,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 04:40:41,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 04:40:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 04:40:41,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 04:40:41,995 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 45 [2020-12-09 04:40:41,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:41,996 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 04:40:41,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:40:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 04:40:41,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-09 04:40:41,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:41,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:40:42,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 04:40:42,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:42,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:42,204 INFO L82 PathProgramCache]: Analyzing trace with hash 2053539673, now seen corresponding path program 1 times [2020-12-09 04:40:42,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:42,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833102694] [2020-12-09 04:40:42,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:42,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:40:42,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:42,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:40:42,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833102694] [2020-12-09 04:40:42,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:42,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:40:42,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302790663] [2020-12-09 04:40:42,415 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:42,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:42,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:42,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:42,416 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 04:40:45,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:45,638 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 04:40:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:40:45,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-12-09 04:40:45,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:45,643 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 04:40:45,643 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 04:40:45,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 04:40:45,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 04:40:45,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 04:40:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 04:40:45,668 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 111 [2020-12-09 04:40:45,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:45,668 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 04:40:45,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:40:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 04:40:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-12-09 04:40:45,670 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:45,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:40:45,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 04:40:45,872 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:45,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:45,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1476660258, now seen corresponding path program 1 times [2020-12-09 04:40:45,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:45,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706643507] [2020-12-09 04:40:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:45,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 04:40:45,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:40:46,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:40:46,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706643507] [2020-12-09 04:40:46,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:46,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:40:46,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176025436] [2020-12-09 04:40:46,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:46,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:46,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:46,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:46,067 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 04:40:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:48,901 INFO L93 Difference]: Finished difference Result 1964 states and 2655 transitions. [2020-12-09 04:40:48,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:40:48,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 113 [2020-12-09 04:40:48,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:48,906 INFO L225 Difference]: With dead ends: 1964 [2020-12-09 04:40:48,906 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 04:40:48,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:48,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 04:40:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-09 04:40:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 04:40:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1556 transitions. [2020-12-09 04:40:48,928 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1556 transitions. Word has length 113 [2020-12-09 04:40:48,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:48,929 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1556 transitions. [2020-12-09 04:40:48,929 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:40:48,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1556 transitions. [2020-12-09 04:40:48,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-12-09 04:40:48,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:48,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-12-09 04:40:49,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 04:40:49,134 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:49,136 INFO L82 PathProgramCache]: Analyzing trace with hash -449811029, now seen corresponding path program 1 times [2020-12-09 04:40:49,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:49,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234106670] [2020-12-09 04:40:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:49,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 04:40:49,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-09 04:40:49,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:40:49,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234106670] [2020-12-09 04:40:49,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:49,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:40:49,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106585503] [2020-12-09 04:40:49,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:40:49,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:49,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:40:49,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:40:49,447 INFO L87 Difference]: Start difference. First operand 1250 states and 1556 transitions. Second operand 4 states. [2020-12-09 04:40:52,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:52,044 INFO L93 Difference]: Finished difference Result 2171 states and 2741 transitions. [2020-12-09 04:40:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:40:52,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2020-12-09 04:40:52,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:52,051 INFO L225 Difference]: With dead ends: 2171 [2020-12-09 04:40:52,051 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 04:40:52,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:40:52,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 04:40:52,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 04:40:52,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 04:40:52,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1327 transitions. [2020-12-09 04:40:52,076 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1327 transitions. Word has length 194 [2020-12-09 04:40:52,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:52,077 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1327 transitions. [2020-12-09 04:40:52,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:40:52,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1327 transitions. [2020-12-09 04:40:52,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-12-09 04:40:52,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:52,081 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-12-09 04:40:52,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 04:40:52,282 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:52,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1037193098, now seen corresponding path program 1 times [2020-12-09 04:40:52,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:52,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386872201] [2020-12-09 04:40:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:52,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:40:52,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-09 04:40:52,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:40:52,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386872201] [2020-12-09 04:40:52,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:40:52,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:40:52,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409331250] [2020-12-09 04:40:52,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:52,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:52,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:52,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:52,717 INFO L87 Difference]: Start difference. First operand 1072 states and 1327 transitions. Second operand 3 states. [2020-12-09 04:40:54,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:40:54,813 INFO L93 Difference]: Finished difference Result 1786 states and 2287 transitions. [2020-12-09 04:40:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:40:54,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-12-09 04:40:54,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:40:54,819 INFO L225 Difference]: With dead ends: 1786 [2020-12-09 04:40:54,819 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 04:40:54,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:40:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 04:40:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 04:40:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 04:40:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1321 transitions. [2020-12-09 04:40:54,845 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1321 transitions. Word has length 220 [2020-12-09 04:40:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:40:54,845 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1321 transitions. [2020-12-09 04:40:54,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:40:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1321 transitions. [2020-12-09 04:40:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-12-09 04:40:54,851 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:40:54,851 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:40:55,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 04:40:55,052 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:40:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:40:55,053 INFO L82 PathProgramCache]: Analyzing trace with hash -780791495, now seen corresponding path program 1 times [2020-12-09 04:40:55,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:40:55,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592213249] [2020-12-09 04:40:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 04:40:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:40:55,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:40:55,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:40:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 128 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 04:40:55,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:40:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 04:40:56,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592213249] [2020-12-09 04:40:56,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 04:40:56,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 04:40:56,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379185323] [2020-12-09 04:40:56,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:40:56,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:40:56,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:40:56,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:40:56,180 INFO L87 Difference]: Start difference. First operand 1072 states and 1321 transitions. Second operand 3 states. [2020-12-09 04:41:02,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:02,707 INFO L93 Difference]: Finished difference Result 2142 states and 2812 transitions. [2020-12-09 04:41:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:02,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2020-12-09 04:41:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:02,713 INFO L225 Difference]: With dead ends: 2142 [2020-12-09 04:41:02,713 INFO L226 Difference]: Without dead ends: 1428 [2020-12-09 04:41:02,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 642 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:41:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-09 04:41:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-09 04:41:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-09 04:41:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1767 transitions. [2020-12-09 04:41:02,732 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1767 transitions. Word has length 324 [2020-12-09 04:41:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:02,733 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1767 transitions. [2020-12-09 04:41:02,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1767 transitions. [2020-12-09 04:41:02,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2020-12-09 04:41:02,737 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:02,737 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:02,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 04:41:02,939 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:41:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:02,941 INFO L82 PathProgramCache]: Analyzing trace with hash -973571237, now seen corresponding path program 1 times [2020-12-09 04:41:02,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:02,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969986498] [2020-12-09 04:41:02,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:03,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:41:03,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 405 proven. 159 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-09 04:41:03,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:41:04,398 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-12-09 04:41:04,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969986498] [2020-12-09 04:41:04,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 04:41:04,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 04:41:04,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650088749] [2020-12-09 04:41:04,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:41:04,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:04,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:41:04,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:41:04,400 INFO L87 Difference]: Start difference. First operand 1428 states and 1767 transitions. Second operand 3 states. [2020-12-09 04:41:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:41:10,371 INFO L93 Difference]: Finished difference Result 3210 states and 4150 transitions. [2020-12-09 04:41:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:41:10,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 435 [2020-12-09 04:41:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:41:10,379 INFO L225 Difference]: With dead ends: 3210 [2020-12-09 04:41:10,379 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 04:41:10,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 864 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:41:10,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 04:41:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 04:41:10,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 04:41:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2666 transitions. [2020-12-09 04:41:10,407 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2666 transitions. Word has length 435 [2020-12-09 04:41:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:41:10,407 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2666 transitions. [2020-12-09 04:41:10,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:41:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2666 transitions. [2020-12-09 04:41:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-12-09 04:41:10,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:41:10,410 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:41:10,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,611 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:41:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:41:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash -376771533, now seen corresponding path program 1 times [2020-12-09 04:41:10,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:41:10,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131480589] [2020-12-09 04:41:10,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 04:41:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:10,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:41:10,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 364 proven. 277 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-09 04:41:11,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:41:12,881 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 612 proven. 29 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-09 04:41:12,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131480589] [2020-12-09 04:41:12,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [201280160] [2020-12-09 04:41:12,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:41:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:13,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:41:13,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:13,452 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:41:13,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:41:13,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:41:13,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:41:13,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:41:13,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:41:13,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:41:13,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:41:13,467 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:41:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 421 proven. 43 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 04:41:13,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:41:13,928 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:41:13,928 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:41:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 440 proven. 24 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 04:41:14,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381695934] [2020-12-09 04:41:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:41:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:41:14,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:41:14,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:41:14,922 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 320 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 04:41:14,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:41:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 320 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 04:41:15,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:41:15,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 7, 4, 4] total 18 [2020-12-09 04:41:15,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809548673] [2020-12-09 04:41:15,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 04:41:15,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:41:15,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 04:41:15,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2020-12-09 04:41:15,439 INFO L87 Difference]: Start difference. First operand 2140 states and 2666 transitions. Second operand 18 states. [2020-12-09 04:41:17,454 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 04:41:19,136 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 04:41:30,106 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-12-09 04:41:30,899 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 04:41:31,557 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 04:41:49,084 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 04:41:52,660 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-09 04:42:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:42:18,097 INFO L93 Difference]: Finished difference Result 5961 states and 7554 transitions. [2020-12-09 04:42:18,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 04:42:18,100 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 451 [2020-12-09 04:42:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:42:18,113 INFO L225 Difference]: With dead ends: 5961 [2020-12-09 04:42:18,113 INFO L226 Difference]: Without dead ends: 4006 [2020-12-09 04:42:18,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2718 GetRequests, 2688 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2020-12-09 04:42:18,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2020-12-09 04:42:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 3607. [2020-12-09 04:42:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3607 states. [2020-12-09 04:42:18,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 3930 transitions. [2020-12-09 04:42:18,163 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 3930 transitions. Word has length 451 [2020-12-09 04:42:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:42:18,163 INFO L481 AbstractCegarLoop]: Abstraction has 3607 states and 3930 transitions. [2020-12-09 04:42:18,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 04:42:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 3930 transitions. [2020-12-09 04:42:18,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2020-12-09 04:42:18,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:42:18,168 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-09 04:42:18,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:42:18,771 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:42:18,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:42:18,773 INFO L82 PathProgramCache]: Analyzing trace with hash -948448989, now seen corresponding path program 1 times [2020-12-09 04:42:18,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:42:18,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342108270] [2020-12-09 04:42:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 04:42:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:18,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:42:18,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 214 proven. 898 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 04:42:21,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:42:22,659 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:42:22,659 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:42:25,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 844 proven. 268 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 04:42:25,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342108270] [2020-12-09 04:42:25,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1854806932] [2020-12-09 04:42:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:42:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:25,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:42:25,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-09 04:42:26,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:42:26,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 04:42:26,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 04:42:26,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105864901] [2020-12-09 04:42:26,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:42:26,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:42:26,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:42:26,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2020-12-09 04:42:26,447 INFO L87 Difference]: Start difference. First operand 3607 states and 3930 transitions. Second operand 4 states. [2020-12-09 04:42:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:42:31,170 INFO L93 Difference]: Finished difference Result 7986 states and 8886 transitions. [2020-12-09 04:42:31,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:42:31,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 699 [2020-12-09 04:42:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:42:31,188 INFO L225 Difference]: With dead ends: 7986 [2020-12-09 04:42:31,188 INFO L226 Difference]: Without dead ends: 5050 [2020-12-09 04:42:31,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2096 GetRequests, 2059 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:42:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5050 states. [2020-12-09 04:42:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5050 to 4853. [2020-12-09 04:42:31,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4853 states. [2020-12-09 04:42:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 5284 transitions. [2020-12-09 04:42:31,267 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 5284 transitions. Word has length 699 [2020-12-09 04:42:31,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:42:31,268 INFO L481 AbstractCegarLoop]: Abstraction has 4853 states and 5284 transitions. [2020-12-09 04:42:31,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:42:31,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 5284 transitions. [2020-12-09 04:42:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2020-12-09 04:42:31,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:42:31,273 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:42:31,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 04:42:31,675 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:42:31,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:42:31,677 INFO L82 PathProgramCache]: Analyzing trace with hash 2052430820, now seen corresponding path program 1 times [2020-12-09 04:42:31,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:42:31,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926713251] [2020-12-09 04:42:31,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-12-09 04:42:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:31,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 04:42:31,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:33,252 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 04:42:33,252 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 04:42:34,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 370 proven. 1147 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-12-09 04:42:34,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:42:35,737 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 04:42:35,737 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:42:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 1153 proven. 364 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2020-12-09 04:42:38,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926713251] [2020-12-09 04:42:38,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1632440049] [2020-12-09 04:42:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:42:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:38,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:42:38,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 1032 proven. 189 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2020-12-09 04:42:39,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:42:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 1032 proven. 189 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2020-12-09 04:42:40,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40211146] [2020-12-09 04:42:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:42:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:40,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:42:40,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 1128 proven. 93 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2020-12-09 04:42:42,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:42:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 1128 proven. 93 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2020-12-09 04:42:43,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:42:43,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 5, 5, 4, 4] total 24 [2020-12-09 04:42:43,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165176158] [2020-12-09 04:42:43,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 04:42:43,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:42:43,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 04:42:43,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2020-12-09 04:42:43,376 INFO L87 Difference]: Start difference. First operand 4853 states and 5284 transitions. Second operand 24 states. [2020-12-09 04:42:49,725 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-12-09 04:42:52,460 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-12-09 04:42:53,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:42:53,692 INFO L93 Difference]: Finished difference Result 9558 states and 10423 transitions. [2020-12-09 04:42:53,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 04:42:53,695 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 740 [2020-12-09 04:42:53,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:42:53,711 INFO L225 Difference]: With dead ends: 9558 [2020-12-09 04:42:53,711 INFO L226 Difference]: Without dead ends: 5223 [2020-12-09 04:42:53,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4458 GetRequests, 4385 SyntacticMatches, 33 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=442, Invalid=1280, Unknown=0, NotChecked=0, Total=1722 [2020-12-09 04:42:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2020-12-09 04:42:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 4652. [2020-12-09 04:42:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-12-09 04:42:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5078 transitions. [2020-12-09 04:42:53,771 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5078 transitions. Word has length 740 [2020-12-09 04:42:53,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:42:53,772 INFO L481 AbstractCegarLoop]: Abstraction has 4652 states and 5078 transitions. [2020-12-09 04:42:53,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 04:42:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5078 transitions. [2020-12-09 04:42:53,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2020-12-09 04:42:53,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:42:53,777 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-09 04:42:54,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 04:42:54,380 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:42:54,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:42:54,382 INFO L82 PathProgramCache]: Analyzing trace with hash -891901688, now seen corresponding path program 1 times [2020-12-09 04:42:54,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:42:54,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026061145] [2020-12-09 04:42:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-12-09 04:42:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:42:54,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:42:54,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:42:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 713 proven. 898 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-12-09 04:42:57,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:42:58,174 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-09 04:42:58,413 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:42:58,413 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:43:01,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 1343 proven. 268 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-12-09 04:43:01,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026061145] [2020-12-09 04:43:01,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [521866944] [2020-12-09 04:43:01,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:02,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:43:02,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 1614 trivial. 0 not checked. [2020-12-09 04:43:02,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:43:02,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 04:43:02,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 04:43:02,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842616710] [2020-12-09 04:43:02,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:43:02,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:43:02,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:43:02,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=293, Unknown=0, NotChecked=0, Total=420 [2020-12-09 04:43:02,855 INFO L87 Difference]: Start difference. First operand 4652 states and 5078 transitions. Second operand 4 states. [2020-12-09 04:43:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:43:07,253 INFO L93 Difference]: Finished difference Result 10926 states and 12059 transitions. [2020-12-09 04:43:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:43:07,258 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 799 [2020-12-09 04:43:07,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:43:07,279 INFO L225 Difference]: With dead ends: 10926 [2020-12-09 04:43:07,280 INFO L226 Difference]: Without dead ends: 6454 [2020-12-09 04:43:07,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2396 GetRequests, 2360 SyntacticMatches, 16 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:43:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6454 states. [2020-12-09 04:43:07,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6454 to 5898. [2020-12-09 04:43:07,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2020-12-09 04:43:07,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 6415 transitions. [2020-12-09 04:43:07,350 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 6415 transitions. Word has length 799 [2020-12-09 04:43:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:43:07,350 INFO L481 AbstractCegarLoop]: Abstraction has 5898 states and 6415 transitions. [2020-12-09 04:43:07,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:43:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 6415 transitions. [2020-12-09 04:43:07,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-12-09 04:43:07,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:43:07,356 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:43:07,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,18 cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:07,758 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:43:07,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:43:07,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1308211019, now seen corresponding path program 1 times [2020-12-09 04:43:07,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:43:07,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709949649] [2020-12-09 04:43:07,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-12-09 04:43:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:08,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:43:08,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:09,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2186 backedges. 1199 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2020-12-09 04:43:09,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:43:09,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709949649] [2020-12-09 04:43:09,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:43:09,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:43:09,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189835638] [2020-12-09 04:43:09,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:43:09,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:43:09,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:43:09,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:43:09,043 INFO L87 Difference]: Start difference. First operand 5898 states and 6415 transitions. Second operand 4 states. [2020-12-09 04:43:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:43:11,380 INFO L93 Difference]: Finished difference Result 11616 states and 12654 transitions. [2020-12-09 04:43:11,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:43:11,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 817 [2020-12-09 04:43:11,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:43:11,400 INFO L225 Difference]: With dead ends: 11616 [2020-12-09 04:43:11,400 INFO L226 Difference]: Without dead ends: 6076 [2020-12-09 04:43:11,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 814 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:43:11,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2020-12-09 04:43:11,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 6076. [2020-12-09 04:43:11,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6076 states. [2020-12-09 04:43:11,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 6595 transitions. [2020-12-09 04:43:11,458 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 6595 transitions. Word has length 817 [2020-12-09 04:43:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:43:11,458 INFO L481 AbstractCegarLoop]: Abstraction has 6076 states and 6595 transitions. [2020-12-09 04:43:11,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:43:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 6595 transitions. [2020-12-09 04:43:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2020-12-09 04:43:11,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:43:11,465 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:43:11,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-12-09 04:43:11,667 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:43:11,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:43:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1336267518, now seen corresponding path program 1 times [2020-12-09 04:43:11,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:43:11,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [507337006] [2020-12-09 04:43:11,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-12-09 04:43:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:11,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 04:43:11,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2409 backedges. 1251 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2020-12-09 04:43:13,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:43:13,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [507337006] [2020-12-09 04:43:13,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:43:13,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:43:13,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494025100] [2020-12-09 04:43:13,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:43:13,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:43:13,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:43:13,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:43:13,088 INFO L87 Difference]: Start difference. First operand 6076 states and 6595 transitions. Second operand 4 states. [2020-12-09 04:43:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:43:15,299 INFO L93 Difference]: Finished difference Result 11794 states and 12830 transitions. [2020-12-09 04:43:15,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:43:15,306 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 891 [2020-12-09 04:43:15,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:43:15,314 INFO L225 Difference]: With dead ends: 11794 [2020-12-09 04:43:15,314 INFO L226 Difference]: Without dead ends: 6076 [2020-12-09 04:43:15,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:43:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2020-12-09 04:43:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 6076. [2020-12-09 04:43:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6076 states. [2020-12-09 04:43:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 6591 transitions. [2020-12-09 04:43:15,371 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 6591 transitions. Word has length 891 [2020-12-09 04:43:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:43:15,372 INFO L481 AbstractCegarLoop]: Abstraction has 6076 states and 6591 transitions. [2020-12-09 04:43:15,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:43:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 6591 transitions. [2020-12-09 04:43:15,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2020-12-09 04:43:15,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:43:15,380 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 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, 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] [2020-12-09 04:43:15,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-12-09 04:43:15,581 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:43:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:43:15,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1511931479, now seen corresponding path program 1 times [2020-12-09 04:43:15,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:43:15,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510429822] [2020-12-09 04:43:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-12-09 04:43:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:15,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:43:15,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2481 backedges. 1205 proven. 898 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-12-09 04:43:19,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:43:20,135 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-09 04:43:20,365 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:43:20,365 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:43:23,370 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:43:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2481 backedges. 1835 proven. 268 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2020-12-09 04:43:26,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510429822] [2020-12-09 04:43:26,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1050851655] [2020-12-09 04:43:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:27,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:43:27,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:27,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:43:27,440 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:43:27,440 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:43:27,443 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:43:27,445 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:43:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2481 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 2117 trivial. 0 not checked. [2020-12-09 04:43:28,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:43:28,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 04:43:28,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 22 [2020-12-09 04:43:28,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165169629] [2020-12-09 04:43:28,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:43:28,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:43:28,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:43:28,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:43:28,179 INFO L87 Difference]: Start difference. First operand 6076 states and 6591 transitions. Second operand 4 states. [2020-12-09 04:43:30,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:43:30,836 INFO L93 Difference]: Finished difference Result 6790 states and 7416 transitions. [2020-12-09 04:43:30,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:43:30,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 921 [2020-12-09 04:43:30,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:43:30,847 INFO L225 Difference]: With dead ends: 6790 [2020-12-09 04:43:30,848 INFO L226 Difference]: Without dead ends: 6788 [2020-12-09 04:43:30,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2762 GetRequests, 2725 SyntacticMatches, 16 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=180, Invalid=326, Unknown=0, NotChecked=0, Total=506 [2020-12-09 04:43:30,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2020-12-09 04:43:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 5898. [2020-12-09 04:43:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2020-12-09 04:43:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 6375 transitions. [2020-12-09 04:43:30,910 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 6375 transitions. Word has length 921 [2020-12-09 04:43:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:43:30,911 INFO L481 AbstractCegarLoop]: Abstraction has 5898 states and 6375 transitions. [2020-12-09 04:43:30,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:43:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 6375 transitions. [2020-12-09 04:43:30,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2020-12-09 04:43:30,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:43:30,919 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:43:31,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3,22 cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:31,321 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:43:31,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:43:31,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1929114589, now seen corresponding path program 1 times [2020-12-09 04:43:31,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:43:31,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636334161] [2020-12-09 04:43:31,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-12-09 04:43:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:31,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:43:31,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1513 proven. 898 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2020-12-09 04:43:35,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:43:36,249 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:43:36,250 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:43:39,435 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:43:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 2143 proven. 268 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2020-12-09 04:43:42,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636334161] [2020-12-09 04:43:42,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [649586276] [2020-12-09 04:43:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:43,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:43:43,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:44,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 1438 proven. 0 refuted. 0 times theorem prover too weak. 1532 trivial. 0 not checked. [2020-12-09 04:43:44,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:43:44,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 04:43:44,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 22 [2020-12-09 04:43:44,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212437063] [2020-12-09 04:43:44,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:43:44,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:43:44,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:43:44,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:43:44,456 INFO L87 Difference]: Start difference. First operand 5898 states and 6375 transitions. Second operand 4 states. [2020-12-09 04:43:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:43:46,712 INFO L93 Difference]: Finished difference Result 11794 states and 12828 transitions. [2020-12-09 04:43:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:43:46,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 972 [2020-12-09 04:43:46,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:43:46,726 INFO L225 Difference]: With dead ends: 11794 [2020-12-09 04:43:46,726 INFO L226 Difference]: Without dead ends: 6254 [2020-12-09 04:43:46,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2913 GetRequests, 2882 SyntacticMatches, 11 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:43:46,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2020-12-09 04:43:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 6254. [2020-12-09 04:43:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6254 states. [2020-12-09 04:43:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6254 states to 6254 states and 6755 transitions. [2020-12-09 04:43:46,794 INFO L78 Accepts]: Start accepts. Automaton has 6254 states and 6755 transitions. Word has length 972 [2020-12-09 04:43:46,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:43:46,795 INFO L481 AbstractCegarLoop]: Abstraction has 6254 states and 6755 transitions. [2020-12-09 04:43:46,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:43:46,795 INFO L276 IsEmpty]: Start isEmpty. Operand 6254 states and 6755 transitions. [2020-12-09 04:43:46,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2020-12-09 04:43:46,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:43:46,804 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:43:47,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3,24 cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:47,206 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:43:47,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:43:47,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1806580251, now seen corresponding path program 1 times [2020-12-09 04:43:47,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:43:47,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2128837925] [2020-12-09 04:43:47,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-12-09 04:43:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:47,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:43:47,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 1548 proven. 898 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-12-09 04:43:51,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:43:52,287 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:43:52,288 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:43:55,287 WARN L197 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:43:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 2178 proven. 268 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2020-12-09 04:43:58,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2128837925] [2020-12-09 04:43:58,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1596358161] [2020-12-09 04:43:58,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:43:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:43:59,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:43:59,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:43:59,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:43:59,712 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:43:59,712 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:43:59,716 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:43:59,720 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:43:59,723 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:44:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 1333 proven. 90 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2020-12-09 04:44:00,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:00,809 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:00,809 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 1399 proven. 24 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2020-12-09 04:44:01,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738582873] [2020-12-09 04:44:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:44:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:01,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:44:01,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 1423 proven. 0 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2020-12-09 04:44:03,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:44:03,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 04:44:03,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 7, 7] total 33 [2020-12-09 04:44:03,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883500086] [2020-12-09 04:44:03,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 04:44:03,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:44:03,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 04:44:03,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:03,418 INFO L87 Difference]: Start difference. First operand 6254 states and 6755 transitions. Second operand 7 states. [2020-12-09 04:44:05,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:44:05,588 INFO L93 Difference]: Finished difference Result 11982 states and 12940 transitions. [2020-12-09 04:44:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 04:44:05,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 979 [2020-12-09 04:44:05,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:44:05,601 INFO L225 Difference]: With dead ends: 11982 [2020-12-09 04:44:05,601 INFO L226 Difference]: Without dead ends: 5898 [2020-12-09 04:44:05,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4890 GetRequests, 4844 SyntacticMatches, 15 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2020-12-09 04:44:05,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5898. [2020-12-09 04:44:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5898 states. [2020-12-09 04:44:05,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 6333 transitions. [2020-12-09 04:44:05,663 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 6333 transitions. Word has length 979 [2020-12-09 04:44:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:44:05,664 INFO L481 AbstractCegarLoop]: Abstraction has 5898 states and 6333 transitions. [2020-12-09 04:44:05,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 04:44:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 6333 transitions. [2020-12-09 04:44:05,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2020-12-09 04:44:05,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:44:05,673 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:44:06,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 mathsat -unsat_core_generation=3 [2020-12-09 04:44:06,276 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:44:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:44:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash -778711884, now seen corresponding path program 1 times [2020-12-09 04:44:06,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:44:06,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099527085] [2020-12-09 04:44:06,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2020-12-09 04:44:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:06,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:44:06,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 1578 proven. 898 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2020-12-09 04:44:10,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:11,326 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:44:11,326 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:44:14,624 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:44:18,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 2208 proven. 268 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2020-12-09 04:44:18,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099527085] [2020-12-09 04:44:18,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [167616505] [2020-12-09 04:44:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:44:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:18,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:44:18,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:18,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:44:18,960 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:44:18,960 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:44:18,963 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:44:18,967 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:44:18,969 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:44:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 1339 proven. 96 refuted. 0 times theorem prover too weak. 1613 trivial. 0 not checked. [2020-12-09 04:44:19,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:20,068 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:20,069 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 1413 proven. 22 refuted. 0 times theorem prover too weak. 1613 trivial. 0 not checked. [2020-12-09 04:44:20,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469133560] [2020-12-09 04:44:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:44:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:21,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:44:21,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 1435 proven. 0 refuted. 0 times theorem prover too weak. 1613 trivial. 0 not checked. [2020-12-09 04:44:22,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:44:22,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 04:44:22,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 7, 7] total 33 [2020-12-09 04:44:22,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864508511] [2020-12-09 04:44:22,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 04:44:22,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:44:22,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 04:44:22,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:22,737 INFO L87 Difference]: Start difference. First operand 5898 states and 6333 transitions. Second operand 7 states. [2020-12-09 04:44:24,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:44:24,836 INFO L93 Difference]: Finished difference Result 11294 states and 12069 transitions. [2020-12-09 04:44:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 04:44:24,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 985 [2020-12-09 04:44:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:44:24,849 INFO L225 Difference]: With dead ends: 11294 [2020-12-09 04:44:24,849 INFO L226 Difference]: Without dead ends: 5542 [2020-12-09 04:44:24,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4920 GetRequests, 4877 SyntacticMatches, 12 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2020-12-09 04:44:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 5542. [2020-12-09 04:44:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5542 states. [2020-12-09 04:44:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 5866 transitions. [2020-12-09 04:44:24,911 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 5866 transitions. Word has length 985 [2020-12-09 04:44:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:44:24,911 INFO L481 AbstractCegarLoop]: Abstraction has 5542 states and 5866 transitions. [2020-12-09 04:44:24,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 04:44:24,911 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 5866 transitions. [2020-12-09 04:44:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2020-12-09 04:44:24,919 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:44:24,920 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:44:25,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 cvc4 --incremental --print-success --lang smt,28 mathsat -unsat_core_generation=3 [2020-12-09 04:44:25,522 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:44:25,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:44:25,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1716286132, now seen corresponding path program 1 times [2020-12-09 04:44:25,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:44:25,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035044671] [2020-12-09 04:44:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 31 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with mathsat -unsat_core_generation=3 [2020-12-09 04:44:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:25,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:44:25,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 1623 proven. 898 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-12-09 04:44:29,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:30,531 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:44:30,531 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:44:33,795 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:44:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 2253 proven. 268 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2020-12-09 04:44:37,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035044671] [2020-12-09 04:44:37,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418137591] [2020-12-09 04:44:37,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 32 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:44:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:37,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:44:37,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:38,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:44:38,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:44:38,296 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:44:38,299 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:44:38,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:44:38,304 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 04:44:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 1348 proven. 100 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2020-12-09 04:44:39,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:39,461 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:39,461 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:44:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 1440 proven. 8 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2020-12-09 04:44:40,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349029800] [2020-12-09 04:44:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:44:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:40,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:44:40,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3102 backedges. 1448 proven. 0 refuted. 0 times theorem prover too weak. 1654 trivial. 0 not checked. [2020-12-09 04:44:42,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:44:42,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 04:44:42,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 7, 7] total 33 [2020-12-09 04:44:42,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896258319] [2020-12-09 04:44:42,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 04:44:42,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:44:42,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 04:44:42,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:42,207 INFO L87 Difference]: Start difference. First operand 5542 states and 5866 transitions. Second operand 7 states. [2020-12-09 04:44:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:44:44,761 INFO L93 Difference]: Finished difference Result 10598 states and 11186 transitions. [2020-12-09 04:44:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 04:44:44,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 994 [2020-12-09 04:44:44,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:44:44,774 INFO L225 Difference]: With dead ends: 10598 [2020-12-09 04:44:44,774 INFO L226 Difference]: Without dead ends: 5186 [2020-12-09 04:44:44,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4965 GetRequests, 4920 SyntacticMatches, 14 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 04:44:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-12-09 04:44:44,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5186. [2020-12-09 04:44:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5186 states. [2020-12-09 04:44:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 5433 transitions. [2020-12-09 04:44:44,822 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 5433 transitions. Word has length 994 [2020-12-09 04:44:44,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:44:44,823 INFO L481 AbstractCegarLoop]: Abstraction has 5186 states and 5433 transitions. [2020-12-09 04:44:44,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 04:44:44,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 5433 transitions. [2020-12-09 04:44:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2020-12-09 04:44:44,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:44:44,831 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:44:45,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,32 cvc4 --incremental --print-success --lang smt,31 mathsat -unsat_core_generation=3 [2020-12-09 04:44:45,435 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:44:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:44:45,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1955059282, now seen corresponding path program 1 times [2020-12-09 04:44:45,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:44:45,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736473418] [2020-12-09 04:44:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 34 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with mathsat -unsat_core_generation=3 [2020-12-09 04:44:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:45,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:44:45,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1638 proven. 898 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2020-12-09 04:44:49,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:50,429 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:44:50,429 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:44:53,658 WARN L197 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:44:57,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 2268 proven. 268 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2020-12-09 04:44:57,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736473418] [2020-12-09 04:44:57,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1777392361] [2020-12-09 04:44:57,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 35 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:44:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:57,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:44:57,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:44:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1351 proven. 44 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2020-12-09 04:44:58,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:44:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1351 proven. 44 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2020-12-09 04:44:59,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013550041] [2020-12-09 04:44:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:44:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:44:59,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:44:59,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1395 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2020-12-09 04:45:00,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:45:00,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 04:45:00,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 10, 4, 4] total 24 [2020-12-09 04:45:00,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184938184] [2020-12-09 04:45:00,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:45:00,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:45:00,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:45:00,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-12-09 04:45:00,947 INFO L87 Difference]: Start difference. First operand 5186 states and 5433 transitions. Second operand 4 states. [2020-12-09 04:45:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:02,854 INFO L93 Difference]: Finished difference Result 10036 states and 10528 transitions. [2020-12-09 04:45:02,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:45:02,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 997 [2020-12-09 04:45:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:02,864 INFO L225 Difference]: With dead ends: 10036 [2020-12-09 04:45:02,864 INFO L226 Difference]: Without dead ends: 5186 [2020-12-09 04:45:02,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4980 GetRequests, 4945 SyntacticMatches, 13 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-12-09 04:45:02,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5186 states. [2020-12-09 04:45:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5186 to 5186. [2020-12-09 04:45:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5186 states. [2020-12-09 04:45:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 5424 transitions. [2020-12-09 04:45:02,911 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 5424 transitions. Word has length 997 [2020-12-09 04:45:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:02,912 INFO L481 AbstractCegarLoop]: Abstraction has 5186 states and 5424 transitions. [2020-12-09 04:45:02,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:45:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 5424 transitions. [2020-12-09 04:45:02,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2020-12-09 04:45:02,920 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:02,920 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-09 04:45:03,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 cvc4 --incremental --print-success --lang smt,34 mathsat -unsat_core_generation=3,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:45:03,523 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:03,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:03,525 INFO L82 PathProgramCache]: Analyzing trace with hash 431688245, now seen corresponding path program 1 times [2020-12-09 04:45:03,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:45:03,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628541696] [2020-12-09 04:45:03,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 37 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with mathsat -unsat_core_generation=3 [2020-12-09 04:45:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:03,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:45:03,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1690 proven. 898 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-12-09 04:45:07,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:45:08,649 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 04:45:08,649 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:45:11,789 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 21 DAG size of output: 7 [2020-12-09 04:45:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 2320 proven. 268 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2020-12-09 04:45:15,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628541696] [2020-12-09 04:45:15,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527879493] [2020-12-09 04:45:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 38 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:45:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:15,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:45:16,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:17,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1365 proven. 112 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2020-12-09 04:45:17,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:45:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1365 proven. 112 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2020-12-09 04:45:19,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783456800] [2020-12-09 04:45:19,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:45:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:19,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:45:19,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1884 proven. 144 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2020-12-09 04:45:20,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:45:22,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3186 backedges. 1884 proven. 144 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2020-12-09 04:45:22,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:45:22,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 6, 6, 5, 5] total 32 [2020-12-09 04:45:22,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557071741] [2020-12-09 04:45:22,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-09 04:45:22,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:45:22,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-09 04:45:22,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2020-12-09 04:45:22,916 INFO L87 Difference]: Start difference. First operand 5186 states and 5424 transitions. Second operand 32 states. [2020-12-09 04:45:40,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:40,086 INFO L93 Difference]: Finished difference Result 12196 states and 12778 transitions. [2020-12-09 04:45:40,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-12-09 04:45:40,087 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 1011 [2020-12-09 04:45:40,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:40,091 INFO L225 Difference]: With dead ends: 12196 [2020-12-09 04:45:40,091 INFO L226 Difference]: Without dead ends: 7368 [2020-12-09 04:45:40,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6079 GetRequests, 6026 SyntacticMatches, 10 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=351, Invalid=1629, Unknown=0, NotChecked=0, Total=1980 [2020-12-09 04:45:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7368 states. [2020-12-09 04:45:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7368 to 6601. [2020-12-09 04:45:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6601 states. [2020-12-09 04:45:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 6898 transitions. [2020-12-09 04:45:40,153 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 6898 transitions. Word has length 1011 [2020-12-09 04:45:40,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:40,154 INFO L481 AbstractCegarLoop]: Abstraction has 6601 states and 6898 transitions. [2020-12-09 04:45:40,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-09 04:45:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 6898 transitions. [2020-12-09 04:45:40,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2020-12-09 04:45:40,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:40,162 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-12-09 04:45:40,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 mathsat -unsat_core_generation=3,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 cvc4 --incremental --print-success --lang smt [2020-12-09 04:45:40,765 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:40,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:40,767 INFO L82 PathProgramCache]: Analyzing trace with hash 959953204, now seen corresponding path program 1 times [2020-12-09 04:45:40,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:45:40,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872254912] [2020-12-09 04:45:40,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 40 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with mathsat -unsat_core_generation=3 [2020-12-09 04:45:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:41,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1155 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 04:45:41,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:43,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 112 proven. 2957 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 04:45:43,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:45:44,235 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 04:45:45,636 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 3 [2020-12-09 04:45:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 825 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2020-12-09 04:45:47,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872254912] [2020-12-09 04:45:47,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 04:45:47,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2020-12-09 04:45:47,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115480733] [2020-12-09 04:45:47,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:45:47,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:45:47,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:45:47,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-09 04:45:47,160 INFO L87 Difference]: Start difference. First operand 6601 states and 6898 transitions. Second operand 5 states. [2020-12-09 04:46:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:46:06,420 INFO L93 Difference]: Finished difference Result 6646 states and 6942 transitions. [2020-12-09 04:46:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:46:06,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1049 [2020-12-09 04:46:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:46:06,439 INFO L225 Difference]: With dead ends: 6646 [2020-12-09 04:46:06,439 INFO L226 Difference]: Without dead ends: 6601 [2020-12-09 04:46:06,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2096 GetRequests, 2086 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-09 04:46:06,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6601 states. [2020-12-09 04:46:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6601 to 6601. [2020-12-09 04:46:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6601 states. [2020-12-09 04:46:06,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 6894 transitions. [2020-12-09 04:46:06,497 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 6894 transitions. Word has length 1049 [2020-12-09 04:46:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:46:06,497 INFO L481 AbstractCegarLoop]: Abstraction has 6601 states and 6894 transitions. [2020-12-09 04:46:06,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:46:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 6894 transitions. [2020-12-09 04:46:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1062 [2020-12-09 04:46:06,506 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:46:06,506 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-12-09 04:46:06,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 mathsat -unsat_core_generation=3 [2020-12-09 04:46:06,708 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:46:06,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:46:06,710 INFO L82 PathProgramCache]: Analyzing trace with hash 117056274, now seen corresponding path program 1 times [2020-12-09 04:46:06,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:46:06,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318567212] [2020-12-09 04:46:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 41 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with mathsat -unsat_core_generation=3 [2020-12-09 04:46:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:46:07,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 04:46:07,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:46:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 112 proven. 3041 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 04:46:09,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:46:10,845 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 3 [2020-12-09 04:46:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 909 proven. 0 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2020-12-09 04:46:12,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318567212] [2020-12-09 04:46:12,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 04:46:12,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2020-12-09 04:46:12,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505946600] [2020-12-09 04:46:12,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:46:12,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:46:12,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:46:12,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-09 04:46:12,380 INFO L87 Difference]: Start difference. First operand 6601 states and 6894 transitions. Second operand 5 states. [2020-12-09 04:46:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:46:22,436 INFO L93 Difference]: Finished difference Result 6646 states and 6938 transitions. [2020-12-09 04:46:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 04:46:22,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1061 [2020-12-09 04:46:22,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:46:22,443 INFO L225 Difference]: With dead ends: 6646 [2020-12-09 04:46:22,443 INFO L226 Difference]: Without dead ends: 6601 [2020-12-09 04:46:22,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2120 GetRequests, 2110 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-12-09 04:46:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6601 states. [2020-12-09 04:46:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6601 to 6423. [2020-12-09 04:46:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6423 states. [2020-12-09 04:46:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6423 states to 6423 states and 6709 transitions. [2020-12-09 04:46:22,501 INFO L78 Accepts]: Start accepts. Automaton has 6423 states and 6709 transitions. Word has length 1061 [2020-12-09 04:46:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:46:22,502 INFO L481 AbstractCegarLoop]: Abstraction has 6423 states and 6709 transitions. [2020-12-09 04:46:22,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:46:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand 6423 states and 6709 transitions. [2020-12-09 04:46:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2020-12-09 04:46:22,514 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:46:22,514 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:46:22,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 mathsat -unsat_core_generation=3 [2020-12-09 04:46:22,716 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:46:22,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:46:22,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1370628833, now seen corresponding path program 1 times [2020-12-09 04:46:22,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:46:22,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1764697379] [2020-12-09 04:46:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 42 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with mathsat -unsat_core_generation=3 [2020-12-09 04:46:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:46:23,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 04:46:23,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:46:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3216 proven. 1115 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2020-12-09 04:46:27,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:46:28,376 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 04:46:28,376 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:46:29,157 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 04:46:29,715 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 04:46:39,787 WARN L197 SmtUtils]: Spent 2.50 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 04:46:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3758 proven. 0 refuted. 573 times theorem prover too weak. 1233 trivial. 0 not checked. [2020-12-09 04:46:44,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1764697379] [2020-12-09 04:46:44,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [689179243] [2020-12-09 04:46:44,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 43 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:46:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:46:45,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:46:45,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:46:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3160 proven. 320 refuted. 0 times theorem prover too weak. 2084 trivial. 0 not checked. [2020-12-09 04:46:48,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:46:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3160 proven. 320 refuted. 0 times theorem prover too weak. 2084 trivial. 0 not checked. [2020-12-09 04:46:50,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147882917] [2020-12-09 04:46:50,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:46:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:46:50,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 04:46:50,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:46:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3606 proven. 61 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2020-12-09 04:46:52,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:46:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 3606 proven. 61 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2020-12-09 04:46:55,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:46:55,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 6, 5, 5] total 30 [2020-12-09 04:46:55,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255850730] [2020-12-09 04:46:55,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-09 04:46:55,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:46:55,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-09 04:46:55,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=622, Unknown=2, NotChecked=0, Total=870 [2020-12-09 04:46:55,087 INFO L87 Difference]: Start difference. First operand 6423 states and 6709 transitions. Second operand 30 states. [2020-12-09 04:47:05,140 WARN L197 SmtUtils]: Spent 2.68 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 04:47:10,974 WARN L197 SmtUtils]: Spent 2.66 s on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 04:47:23,755 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 04:47:51,130 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-09 04:49:55,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:49:55,305 INFO L93 Difference]: Finished difference Result 13402 states and 14004 transitions. [2020-12-09 04:49:55,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-09 04:49:55,305 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 1276 [2020-12-09 04:49:55,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:49:55,310 INFO L225 Difference]: With dead ends: 13402 [2020-12-09 04:49:55,310 INFO L226 Difference]: Without dead ends: 7197 [2020-12-09 04:49:55,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7676 GetRequests, 7603 SyntacticMatches, 30 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=455, Invalid=1520, Unknown=5, NotChecked=0, Total=1980 [2020-12-09 04:49:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7197 states. [2020-12-09 04:49:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 6139. [2020-12-09 04:49:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6139 states. [2020-12-09 04:49:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6139 states to 6139 states and 6308 transitions. [2020-12-09 04:49:55,375 INFO L78 Accepts]: Start accepts. Automaton has 6139 states and 6308 transitions. Word has length 1276 [2020-12-09 04:49:55,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:49:55,376 INFO L481 AbstractCegarLoop]: Abstraction has 6139 states and 6308 transitions. [2020-12-09 04:49:55,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-09 04:49:55,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6139 states and 6308 transitions. [2020-12-09 04:49:55,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1397 [2020-12-09 04:49:55,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:49:55,391 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-09 04:49:55,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 mathsat -unsat_core_generation=3,43 cvc4 --incremental --print-success --lang smt,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:49:55,994 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:49:55,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:49:55,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1700903254, now seen corresponding path program 1 times [2020-12-09 04:49:56,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:49:56,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824728101] [2020-12-09 04:49:56,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/mathsat Starting monitored process 45 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with mathsat -unsat_core_generation=3 [2020-12-09 04:49:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:49:56,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 04:49:56,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:49:57,370 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-09 04:49:57,581 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-09 04:49:57,786 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-12-09 04:49:57,800 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 04:49:57,800 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 04:50:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 3517 proven. 2295 refuted. 0 times theorem prover too weak. 890 trivial. 0 not checked. [2020-12-09 04:50:01,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:50:02,378 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 1] term [2020-12-09 04:50:02,379 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 04:50:06,162 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 04:50:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 5263 proven. 186 refuted. 0 times theorem prover too weak. 1253 trivial. 0 not checked. [2020-12-09 04:50:09,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824728101] [2020-12-09 04:50:09,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [414570073] [2020-12-09 04:50:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/cvc4 Starting monitored process 46 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:50:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:50:10,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:50:10,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:50:11,029 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 04:50:11,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:50:11,029 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:50:11,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:50:11,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:50:11,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:50:11,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:50:11,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:50:11,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 04:50:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 1557 proven. 37 refuted. 0 times theorem prover too weak. 5108 trivial. 0 not checked. [2020-12-09 04:50:12,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:50:12,651 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:50:12,652 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 04:50:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 1589 proven. 5 refuted. 0 times theorem prover too weak. 5108 trivial. 0 not checked. [2020-12-09 04:50:14,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003226197] [2020-12-09 04:50:14,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:50:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:50:14,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 04:50:14,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:50:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 679 proven. 921 refuted. 0 times theorem prover too weak. 5102 trivial. 0 not checked. [2020-12-09 04:50:16,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:50:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6702 backedges. 679 proven. 921 refuted. 0 times theorem prover too weak. 5102 trivial. 0 not checked. [2020-12-09 04:50:18,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:50:18,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 7, 7, 4, 4] total 35 [2020-12-09 04:50:18,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627934163] [2020-12-09 04:50:18,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-12-09 04:50:18,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:50:18,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-12-09 04:50:18,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2020-12-09 04:50:18,991 INFO L87 Difference]: Start difference. First operand 6139 states and 6308 transitions. Second operand 35 states. [2020-12-09 04:50:19,337 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-09 04:50:33,411 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2020-12-09 04:50:35,881 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-12-09 04:50:37,658 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-09 04:50:38,021 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-09 04:50:38,369 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-09 04:50:38,702 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-09 04:50:39,023 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-09 04:50:39,328 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-12-09 04:50:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:50:51,051 INFO L93 Difference]: Finished difference Result 13156 states and 13510 transitions. [2020-12-09 04:50:51,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-09 04:50:51,052 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 1396 [2020-12-09 04:50:51,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:50:51,052 INFO L225 Difference]: With dead ends: 13156 [2020-12-09 04:50:51,052 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 04:50:51,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8404 GetRequests, 8346 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 865 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=634, Invalid=2558, Unknown=0, NotChecked=0, Total=3192 [2020-12-09 04:50:51,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 04:50:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 04:50:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 04:50:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 04:50:51,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1396 [2020-12-09 04:50:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:50:51,057 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 04:50:51,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-12-09 04:50:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 04:50:51,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 04:50:51,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 mathsat -unsat_core_generation=3,46 cvc4 --incremental --print-success --lang smt [2020-12-09 04:50:51,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 04:50:52,369 WARN L197 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 438 [2020-12-09 04:50:52,808 WARN L197 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 445 [2020-12-09 04:51:34,781 WARN L197 SmtUtils]: Spent 41.97 s on a formula simplification. DAG size of input: 417 DAG size of output: 121 [2020-12-09 04:52:14,654 WARN L197 SmtUtils]: Spent 39.87 s on a formula simplification. DAG size of input: 424 DAG size of output: 118 [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 04:52:14,657 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 04:52:14,658 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 04:52:14,659 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 04:52:14,660 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 04:52:14,661 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 04:52:14,662 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 04:52:14,663 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 149) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 04:52:14,664 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 04:52:14,665 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,666 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 04:52:14,667 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,668 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse10 (= (_ bv10 32) ~a21~0)) (.cse1 (= (_ bv9 32) ~a21~0)) (.cse15 (not (bvslt (_ bv11 32) ~a12~0))) (.cse33 (not (bvsge (_ bv80 32) ~a12~0))) (.cse4 (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967292 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse11 (= (_ bv9 32) ~a15~0)) (.cse16 (= (_ bv6 32) ~a21~0))) (let ((.cse20 (not .cse16)) (.cse8 (bvsge (_ bv11 32) ~a12~0)) (.cse19 (= ULTIMATE.start_calculate_output_~input (_ bv5 32))) (.cse5 (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967293 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_calculate_output_~input (_ bv1 32))) (.cse27 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse2 (= ULTIMATE.start_calculate_output_~input (_ bv2 32))) (.cse26 (= (_ bv7 32) ~a21~0)) (.cse23 (= (_ bv8 32) ~a21~0)) (.cse14 (= (_ bv5 32) ~a15~0)) (.cse24 (not .cse11)) (.cse30 (not .cse0)) (.cse31 (not .cse4)) (.cse28 (or (not .cse1) .cse15 .cse33)) (.cse29 (or (not .cse10) .cse15 .cse33))) (let ((.cse12 (or .cse24 .cse30 .cse31 (and .cse28 .cse29))) (.cse18 (or (not .cse14) .cse15 .cse30 .cse33)) (.cse21 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse25 (let ((.cse32 (or .cse26 .cse1 .cse23))) (or (and .cse0 .cse32 .cse27 .cse4) (and .cse0 .cse32 .cse27 .cse19) (and .cse0 .cse32 .cse27 .cse5) (and .cse0 .cse32 .cse27 .cse3) (and .cse0 .cse32 .cse27 (= ULTIMATE.start_calculate_output_~input (_ bv6 32))) (and .cse0 .cse32 .cse27 .cse2)))) (.cse13 (= (_ bv7 32) ~a15~0)) (.cse9 (bvsle (bvadd ~a12~0 (_ bv4294367247 32)) (_ bv4294967253 32))) (.cse17 (or (not .cse8) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse22 (or .cse24 (and .cse28 (or .cse20 (not (bvslt (_ bv80 32) ~a12~0))) .cse29) .cse30 .cse31)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse7 (not .cse27))) (or (and .cse0 .cse1 (or .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse10 .cse11 .cse7 .cse12) (and .cse0 .cse1 (= (_ bv6 32) ~a15~0)) (and .cse0 .cse10 .cse13) (and .cse14 .cse15 .cse16 .cse17) (and .cse0 .cse14 .cse18 .cse16) (and .cse0 .cse9 (not .cse3) .cse10 .cse11 .cse15 (not .cse19)) (and .cse0 .cse10 .cse7 .cse15) (and .cse0 .cse9 .cse10 .cse6) (and .cse0 .cse20 .cse7 .cse21 .cse12 .cse17) (and .cse0 .cse18 .cse7 .cse21 .cse17 .cse22) (and .cse0 .cse9 .cse11 .cse7 .cse23) (and .cse24 .cse9 .cse25) (and .cse0 .cse9 .cse13 .cse23) (and .cse0 .cse26 .cse9 .cse11 .cse7 .cse17) (and .cse9 .cse25 .cse23) (and .cse0 .cse13 .cse16) (and .cse0 .cse9 .cse1 .cse11 .cse7 .cse17 .cse22) (and .cse0 .cse26 .cse6 .cse7 .cse8))))) [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 04:52:14,669 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,670 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse10 (= (_ bv10 32) ~a21~0)) (.cse1 (= (_ bv9 32) ~a21~0)) (.cse15 (not (bvslt (_ bv11 32) ~a12~0))) (.cse33 (not (bvsge (_ bv80 32) ~a12~0))) (.cse4 (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967292 32)) (_ bv0 32))) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse11 (= (_ bv9 32) ~a15~0)) (.cse16 (= (_ bv6 32) ~a21~0))) (let ((.cse21 (not .cse16)) (.cse8 (bvsge (_ bv11 32) ~a12~0)) (.cse19 (= ULTIMATE.start_calculate_output_~input (_ bv5 32))) (.cse5 (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967293 32)) (_ bv0 32))) (.cse3 (= ULTIMATE.start_calculate_output_~input (_ bv1 32))) (.cse27 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse2 (= ULTIMATE.start_calculate_output_~input (_ bv2 32))) (.cse20 (= (_ bv7 32) ~a21~0)) (.cse24 (= (_ bv8 32) ~a21~0)) (.cse14 (= (_ bv5 32) ~a15~0)) (.cse25 (not .cse11)) (.cse30 (not .cse0)) (.cse31 (not .cse4)) (.cse28 (or (not .cse1) .cse15 .cse33)) (.cse29 (or (not .cse10) .cse15 .cse33))) (let ((.cse12 (or .cse25 .cse30 .cse31 (and .cse28 .cse29))) (.cse18 (or (not .cse14) .cse15 .cse30 .cse33)) (.cse22 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse26 (let ((.cse32 (or .cse20 .cse1 .cse24))) (or (and .cse0 .cse32 .cse27 .cse4) (and .cse0 .cse32 .cse27 .cse19) (and .cse0 .cse32 .cse27 .cse5) (and .cse0 .cse32 .cse27 .cse3) (and .cse0 .cse32 .cse27 (= ULTIMATE.start_calculate_output_~input (_ bv6 32))) (and .cse0 .cse32 .cse27 .cse2)))) (.cse13 (= (_ bv7 32) ~a15~0)) (.cse9 (bvsle (bvadd ~a12~0 (_ bv4294367247 32)) (_ bv4294967253 32))) (.cse17 (or (not .cse8) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse23 (or .cse25 (and .cse28 (or .cse21 (not (bvslt (_ bv80 32) ~a12~0))) .cse29) .cse30 .cse31)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse7 (not .cse27))) (or (and .cse0 .cse1 (or .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 .cse8) (and .cse0 .cse9 .cse10 .cse11 .cse7 .cse12) (and .cse0 .cse1 (= (_ bv6 32) ~a15~0)) (and .cse0 .cse10 .cse13) (and .cse14 .cse15 .cse16 .cse17) (and .cse0 .cse14 .cse18 .cse16) (and .cse0 .cse9 (not .cse3) .cse10 .cse11 .cse15 (not .cse19)) (and .cse0 .cse10 .cse7 .cse15) (and .cse0 .cse20 (= ~a12~0 (_ bv4294967247 32)) .cse6) (and .cse0 .cse9 .cse10 .cse6) (and .cse0 .cse21 .cse7 .cse22 .cse12 .cse17) (and .cse0 .cse18 .cse7 .cse22 .cse17 .cse23) (and .cse0 .cse9 .cse11 .cse7 .cse24) (and .cse25 .cse9 .cse26) (and .cse0 .cse9 .cse13 .cse24) (and .cse0 .cse20 .cse9 .cse11 .cse7 .cse17) (and .cse9 .cse26 .cse24) (and .cse0 .cse13 .cse16) (and .cse0 .cse9 .cse1 .cse11 .cse7 .cse17 .cse23) (and .cse0 .cse20 .cse6 .cse7 .cse8))))) [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,671 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 04:52:14,672 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 04:52:14,672 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 04:52:14,672 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 04:52:14,672 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 04:52:14,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:52:14 BoogieIcfgContainer [2020-12-09 04:52:14,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:52:14,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:52:14,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:52:14,706 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:52:14,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:40:38" (3/4) ... [2020-12-09 04:52:14,708 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 04:52:14,725 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 04:52:14,726 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 04:52:14,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 04:52:14,729 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 04:52:14,810 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_79252c3d-7441-496b-b54b-4f3ef851e845/bin/utaipan/witness.graphml [2020-12-09 04:52:14,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:52:14,811 INFO L168 Benchmark]: Toolchain (without parser) took 699395.87 ms. Allocated memory was 54.5 MB in the beginning and 799.0 MB in the end (delta: 744.5 MB). Free memory was 31.2 MB in the beginning and 401.4 MB in the end (delta: -370.1 MB). Peak memory consumption was 374.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,811 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 36.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:52:14,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.70 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.1 MB in the beginning and 40.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.91 ms. Allocated memory is still 69.2 MB. Free memory was 40.4 MB in the beginning and 48.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,812 INFO L168 Benchmark]: Boogie Preprocessor took 54.18 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 43.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,812 INFO L168 Benchmark]: RCFGBuilder took 2365.37 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 43.2 MB in the beginning and 46.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,812 INFO L168 Benchmark]: TraceAbstraction took 696318.44 ms. Allocated memory was 83.9 MB in the beginning and 799.0 MB in the end (delta: 715.1 MB). Free memory was 46.0 MB in the beginning and 421.3 MB in the end (delta: -375.4 MB). Peak memory consumption was 676.9 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,812 INFO L168 Benchmark]: Witness Printer took 104.70 ms. Allocated memory is still 799.0 MB. Free memory was 421.3 MB in the beginning and 401.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 04:52:14,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 36.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 468.70 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.1 MB in the beginning and 40.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.91 ms. Allocated memory is still 69.2 MB. Free memory was 40.4 MB in the beginning and 48.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.18 ms. Allocated memory is still 69.2 MB. Free memory was 48.7 MB in the beginning and 43.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2365.37 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 43.2 MB in the beginning and 46.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 696318.44 ms. Allocated memory was 83.9 MB in the beginning and 799.0 MB in the end (delta: 715.1 MB). Free memory was 46.0 MB in the beginning and 421.3 MB in the end (delta: -375.4 MB). Peak memory consumption was 676.9 MB. Max. memory is 16.1 GB. * Witness Printer took 104.70 ms. Allocated memory is still 799.0 MB. Free memory was 421.3 MB in the beginning and 401.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 149]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((1bv32 == a24 && 9bv32 == a21) && (((input == 2bv32 || input == 1bv32) || ~bvadd64(input, 4294967292bv32) == 0bv32) || ~bvadd64(input, 4294967293bv32) == 0bv32)) && 8bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && ~bvsge32(11bv32, a12)) || (((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 10bv32 == a21) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (((!(9bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)) || (((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))))) || ((1bv32 == a24 && 9bv32 == a21) && 6bv32 == a15)) || ((1bv32 == a24 && 10bv32 == a21) && 7bv32 == a15)) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (((1bv32 == a24 && 5bv32 == a15) && (((!(5bv32 == a15) || !~bvslt32(11bv32, a12)) || !(1bv32 == a24)) || !~bvsge32(80bv32, a12))) && 6bv32 == a21)) || ((((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && !(input == 1bv32)) && 10bv32 == a21) && 9bv32 == a15) && !~bvslt32(11bv32, a12)) && !(input == 5bv32))) || (((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || (((1bv32 == a24 && 7bv32 == a21) && a12 == 4294967247bv32) && 8bv32 == a15)) || (((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 10bv32 == a21) && 8bv32 == a15)) || (((((1bv32 == a24 && !(6bv32 == a21)) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (((!(9bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)) || (((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12))))) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (((((1bv32 == a24 && (((!(5bv32 == a15) || !~bvslt32(11bv32, a12)) || !(1bv32 == a24)) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) && (((!(9bv32 == a15) || ((((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && (!(6bv32 == a21) || !~bvslt32(80bv32, a12))) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && 8bv32 == a21)) || ((!(9bv32 == a15) && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && ((((((((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967292bv32) == 0bv32) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 5bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967293bv32) == 0bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 1bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 6bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 2bv32)))) || (((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 7bv32 == a15) && 8bv32 == a21)) || (((((1bv32 == a24 && 7bv32 == a21) && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32) && ((((((((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967292bv32) == 0bv32) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 5bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967293bv32) == 0bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 1bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 6bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 2bv32))) && 8bv32 == a21)) || ((1bv32 == a24 && 7bv32 == a15) && 6bv32 == a21)) || ((((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a21) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) && (((!(9bv32 == a15) || ((((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && (!(6bv32 == a21) || !~bvslt32(80bv32, a12))) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((((1bv32 == a24 && 7bv32 == a21) && 8bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && ~bvsge32(11bv32, a12)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((1bv32 == a24 && 9bv32 == a21) && (((input == 2bv32 || input == 1bv32) || ~bvadd64(input, 4294967292bv32) == 0bv32) || ~bvadd64(input, 4294967293bv32) == 0bv32)) && 8bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && ~bvsge32(11bv32, a12)) || (((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 10bv32 == a21) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (((!(9bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)) || (((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))))) || ((1bv32 == a24 && 9bv32 == a21) && 6bv32 == a15)) || ((1bv32 == a24 && 10bv32 == a21) && 7bv32 == a15)) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (((1bv32 == a24 && 5bv32 == a15) && (((!(5bv32 == a15) || !~bvslt32(11bv32, a12)) || !(1bv32 == a24)) || !~bvsge32(80bv32, a12))) && 6bv32 == a21)) || ((((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && !(input == 1bv32)) && 10bv32 == a21) && 9bv32 == a15) && !~bvslt32(11bv32, a12)) && !(input == 5bv32))) || (((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || (((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 10bv32 == a21) && 8bv32 == a15)) || (((((1bv32 == a24 && !(6bv32 == a21)) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (((!(9bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)) || (((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12))))) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (((((1bv32 == a24 && (((!(5bv32 == a15) || !~bvslt32(11bv32, a12)) || !(1bv32 == a24)) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) && (((!(9bv32 == a15) || ((((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && (!(6bv32 == a21) || !~bvslt32(80bv32, a12))) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && 8bv32 == a21)) || ((!(9bv32 == a15) && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && ((((((((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967292bv32) == 0bv32) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 5bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967293bv32) == 0bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 1bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 6bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 2bv32)))) || (((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 7bv32 == a15) && 8bv32 == a21)) || (((((1bv32 == a24 && 7bv32 == a21) && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32) && ((((((((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967292bv32) == 0bv32) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 5bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && ~bvadd64(input, 4294967293bv32) == 0bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 1bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 6bv32)) || (((1bv32 == a24 && ((7bv32 == a21 || 9bv32 == a21) || 8bv32 == a21)) && ~bvsle32(a12, 4294967253bv32)) && input == 2bv32))) && 8bv32 == a21)) || ((1bv32 == a24 && 7bv32 == a15) && 6bv32 == a21)) || ((((((1bv32 == a24 && ~bvsle32(~bvadd64(a12, 4294367247bv32), 4294967253bv32)) && 9bv32 == a21) && 9bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) && (((!(9bv32 == a15) || ((((!(9bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)) && (!(6bv32 == a21) || !~bvslt32(80bv32, a12))) && ((!(10bv32 == a21) || !~bvslt32(11bv32, a12)) || !~bvsge32(80bv32, a12)))) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((((1bv32 == a24 && 7bv32 == a21) && 8bv32 == a15) && !~bvsle32(a12, 4294967253bv32)) && ~bvsge32(11bv32, a12)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 613.2s, OverallIterations: 24, TraceHistogramMax: 13, AutomataDifference: 385.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 82.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1408 SDtfs, 15247 SDslu, 1210 SDs, 0 SdLazy, 67199 SolverSat, 2931 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 323.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67371 GetRequests, 66736 SyntacticMatches, 195 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 88.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6601occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 4616 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 144 NumberOfFragments, 1660 HoareAnnotationTreeSize, 3 FomulaSimplifications, 57814 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 59649 FormulaSimplificationTreeSizeReductionInter, 81.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.4s SsaConstructionTime, 10.7s SatisfiabilityAnalysisTime, 203.0s InterpolantComputationTime, 38529 NumberOfCodeBlocks, 38529 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 67244 ConstructedInterpolants, 0 QuantifiedInterpolants, 553335428 SizeOfPredicates, 208 NumberOfNonLiveVariables, 42996 ConjunctsInSsa, 379 ConjunctsInUnsatCore, 77 InterpolantComputations, 19 PerfectInterpolantSequences, 187945/215222 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...