./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem03_label57.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_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem03_label57.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI --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 1b3ff5d79b7436b9866ad9b80b9e60df1f87bc40 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:33,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:33,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:33,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:33,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:33,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:33,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:33,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:33,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:33,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:33,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:33,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:33,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:33,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:33,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:33,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:33,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:33,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:33,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:33,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:33,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:33,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:33,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:33,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:33,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:33,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:33,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:33,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:33,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:33,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:33,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:33,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:33,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:33,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:33,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:33,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:33,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:33,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:33,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:33,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:33,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:33,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:33,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:33,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:33,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:33,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:33,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:33,683 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:33,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:33,683 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:33,684 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:33,684 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:33,691 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:33,692 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:33,692 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:33,692 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:33,692 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:33,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:33,693 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:33,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:33,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:33,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:33,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:33,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:33,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:33,695 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:33,695 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:33,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:33,696 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:33,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:33,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:33,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:33,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:33,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:33,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:33,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:33,699 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:33,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:33,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:33,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:33,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:33,701 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b3ff5d79b7436b9866ad9b80b9e60df1f87bc40 [2021-10-11 02:25:34,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:34,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:34,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:34,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:34,070 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:34,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/eca-rers2012/Problem03_label57.c [2021-10-11 02:25:34,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/data/98f4bd33d/af1dfdd9f3ba4cd1a4d0b366262ee014/FLAG58f95f589 [2021-10-11 02:25:34,869 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:34,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/sv-benchmarks/c/eca-rers2012/Problem03_label57.c [2021-10-11 02:25:34,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/data/98f4bd33d/af1dfdd9f3ba4cd1a4d0b366262ee014/FLAG58f95f589 [2021-10-11 02:25:35,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/data/98f4bd33d/af1dfdd9f3ba4cd1a4d0b366262ee014 [2021-10-11 02:25:35,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:35,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:35,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:35,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:35,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:35,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:35" (1/1) ... [2021-10-11 02:25:35,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6289c2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:35, skipping insertion in model container [2021-10-11 02:25:35,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:35" (1/1) ... [2021-10-11 02:25:35,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:35,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:35,869 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/sv-benchmarks/c/eca-rers2012/Problem03_label57.c[55951,55964] [2021-10-11 02:25:35,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:35,911 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:36,212 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/sv-benchmarks/c/eca-rers2012/Problem03_label57.c[55951,55964] [2021-10-11 02:25:36,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:36,250 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:36,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36 WrapperNode [2021-10-11 02:25:36,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:36,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:36,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:36,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:36,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:36,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:36,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:36,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:36,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... [2021-10-11 02:25:36,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:36,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:36,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:36,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:36,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:40,370 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:40,371 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:25:40,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:40 BoogieIcfgContainer [2021-10-11 02:25:40,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:40,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:40,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:40,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:40,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:35" (1/3) ... [2021-10-11 02:25:40,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4954c93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:40, skipping insertion in model container [2021-10-11 02:25:40,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:36" (2/3) ... [2021-10-11 02:25:40,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4954c93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:40, skipping insertion in model container [2021-10-11 02:25:40,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:40" (3/3) ... [2021-10-11 02:25:40,387 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label57.c [2021-10-11 02:25:40,403 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:40,407 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:40,419 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:40,465 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:40,465 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:40,465 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:40,466 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:40,466 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:40,466 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:40,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:40,466 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states. [2021-10-11 02:25:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-11 02:25:40,498 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:40,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:40,500 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:40,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash 466746324, now seen corresponding path program 1 times [2021-10-11 02:25:40,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:40,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843365045] [2021-10-11 02:25:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:41,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:41,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843365045] [2021-10-11 02:25:41,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:41,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:41,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981442896] [2021-10-11 02:25:41,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:41,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:41,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:41,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:41,211 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 3 states. [2021-10-11 02:25:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:42,401 INFO L93 Difference]: Finished difference Result 440 states and 860 transitions. [2021-10-11 02:25:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:42,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2021-10-11 02:25:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:42,420 INFO L225 Difference]: With dead ends: 440 [2021-10-11 02:25:42,420 INFO L226 Difference]: Without dead ends: 289 [2021-10-11 02:25:42,424 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 [2021-10-11 02:25:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-11 02:25:42,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-10-11 02:25:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2021-10-11 02:25:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 549 transitions. [2021-10-11 02:25:42,519 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 549 transitions. Word has length 143 [2021-10-11 02:25:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:42,520 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 549 transitions. [2021-10-11 02:25:42,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 549 transitions. [2021-10-11 02:25:42,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-11 02:25:42,525 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:42,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:42,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:42,526 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:42,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:42,527 INFO L82 PathProgramCache]: Analyzing trace with hash 865032792, now seen corresponding path program 1 times [2021-10-11 02:25:42,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:42,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228026503] [2021-10-11 02:25:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:42,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228026503] [2021-10-11 02:25:42,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:42,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:42,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136227109] [2021-10-11 02:25:42,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:42,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:42,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:42,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:42,723 INFO L87 Difference]: Start difference. First operand 289 states and 549 transitions. Second operand 3 states. [2021-10-11 02:25:43,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:43,709 INFO L93 Difference]: Finished difference Result 865 states and 1645 transitions. [2021-10-11 02:25:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:43,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2021-10-11 02:25:43,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:43,717 INFO L225 Difference]: With dead ends: 865 [2021-10-11 02:25:43,717 INFO L226 Difference]: Without dead ends: 577 [2021-10-11 02:25:43,720 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 [2021-10-11 02:25:43,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-10-11 02:25:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2021-10-11 02:25:43,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2021-10-11 02:25:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1000 transitions. [2021-10-11 02:25:43,758 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1000 transitions. Word has length 148 [2021-10-11 02:25:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:43,759 INFO L481 AbstractCegarLoop]: Abstraction has 575 states and 1000 transitions. [2021-10-11 02:25:43,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1000 transitions. [2021-10-11 02:25:43,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-11 02:25:43,765 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:43,766 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:43,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:43,766 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash -925512781, now seen corresponding path program 1 times [2021-10-11 02:25:43,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:43,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387829240] [2021-10-11 02:25:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:44,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387829240] [2021-10-11 02:25:44,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555636560] [2021-10-11 02:25:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:44,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:44,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:44,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:44,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:25:44,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 4 [2021-10-11 02:25:44,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426181714] [2021-10-11 02:25:44,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:44,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:44,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:44,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:44,959 INFO L87 Difference]: Start difference. First operand 575 states and 1000 transitions. Second operand 3 states. [2021-10-11 02:25:45,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:45,975 INFO L93 Difference]: Finished difference Result 1721 states and 2997 transitions. [2021-10-11 02:25:45,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:45,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2021-10-11 02:25:45,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:45,985 INFO L225 Difference]: With dead ends: 1721 [2021-10-11 02:25:45,985 INFO L226 Difference]: Without dead ends: 1147 [2021-10-11 02:25:45,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 297 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:45,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-10-11 02:25:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2021-10-11 02:25:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1147 states. [2021-10-11 02:25:46,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1964 transitions. [2021-10-11 02:25:46,028 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1964 transitions. Word has length 150 [2021-10-11 02:25:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:46,029 INFO L481 AbstractCegarLoop]: Abstraction has 1147 states and 1964 transitions. [2021-10-11 02:25:46,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:46,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1964 transitions. [2021-10-11 02:25:46,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-10-11 02:25:46,036 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:46,036 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:46,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:25:46,262 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:46,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:46,262 INFO L82 PathProgramCache]: Analyzing trace with hash 603121689, now seen corresponding path program 1 times [2021-10-11 02:25:46,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:46,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60893602] [2021-10-11 02:25:46,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-11 02:25:46,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60893602] [2021-10-11 02:25:46,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:46,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:46,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219943960] [2021-10-11 02:25:46,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:46,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:46,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:46,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:46,392 INFO L87 Difference]: Start difference. First operand 1147 states and 1964 transitions. Second operand 3 states. [2021-10-11 02:25:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:47,437 INFO L93 Difference]: Finished difference Result 2865 states and 4883 transitions. [2021-10-11 02:25:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:47,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2021-10-11 02:25:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:47,450 INFO L225 Difference]: With dead ends: 2865 [2021-10-11 02:25:47,451 INFO L226 Difference]: Without dead ends: 1719 [2021-10-11 02:25:47,453 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 [2021-10-11 02:25:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2021-10-11 02:25:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1719. [2021-10-11 02:25:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2021-10-11 02:25:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2860 transitions. [2021-10-11 02:25:47,511 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2860 transitions. Word has length 160 [2021-10-11 02:25:47,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:47,511 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2860 transitions. [2021-10-11 02:25:47,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:47,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2860 transitions. [2021-10-11 02:25:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-10-11 02:25:47,516 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:47,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:47,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:25:47,517 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:47,519 INFO L82 PathProgramCache]: Analyzing trace with hash -2119273739, now seen corresponding path program 1 times [2021-10-11 02:25:47,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:47,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578235081] [2021-10-11 02:25:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:47,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578235081] [2021-10-11 02:25:47,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:47,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:47,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590093547] [2021-10-11 02:25:47,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:47,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:47,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:47,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:47,623 INFO L87 Difference]: Start difference. First operand 1719 states and 2860 transitions. Second operand 3 states. [2021-10-11 02:25:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:48,667 INFO L93 Difference]: Finished difference Result 5153 states and 8577 transitions. [2021-10-11 02:25:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:48,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2021-10-11 02:25:48,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:48,691 INFO L225 Difference]: With dead ends: 5153 [2021-10-11 02:25:48,692 INFO L226 Difference]: Without dead ends: 3435 [2021-10-11 02:25:48,695 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 [2021-10-11 02:25:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-10-11 02:25:48,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3435. [2021-10-11 02:25:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3435 states. [2021-10-11 02:25:48,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3435 states to 3435 states and 4992 transitions. [2021-10-11 02:25:48,804 INFO L78 Accepts]: Start accepts. Automaton has 3435 states and 4992 transitions. Word has length 162 [2021-10-11 02:25:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:48,806 INFO L481 AbstractCegarLoop]: Abstraction has 3435 states and 4992 transitions. [2021-10-11 02:25:48,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3435 states and 4992 transitions. [2021-10-11 02:25:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-10-11 02:25:48,813 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:48,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:48,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:25:48,814 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1976905867, now seen corresponding path program 1 times [2021-10-11 02:25:48,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:48,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572794911] [2021-10-11 02:25:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:48,911 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:48,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572794911] [2021-10-11 02:25:48,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:48,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:48,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467484927] [2021-10-11 02:25:48,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:48,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:48,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:48,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:48,919 INFO L87 Difference]: Start difference. First operand 3435 states and 4992 transitions. Second operand 3 states. [2021-10-11 02:25:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:50,040 INFO L93 Difference]: Finished difference Result 8585 states and 12509 transitions. [2021-10-11 02:25:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:50,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2021-10-11 02:25:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:50,075 INFO L225 Difference]: With dead ends: 8585 [2021-10-11 02:25:50,076 INFO L226 Difference]: Without dead ends: 5151 [2021-10-11 02:25:50,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2021-10-11 02:25:50,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 5151. [2021-10-11 02:25:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5151 states. [2021-10-11 02:25:50,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 7368 transitions. [2021-10-11 02:25:50,230 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 7368 transitions. Word has length 165 [2021-10-11 02:25:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:50,231 INFO L481 AbstractCegarLoop]: Abstraction has 5151 states and 7368 transitions. [2021-10-11 02:25:50,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:50,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 7368 transitions. [2021-10-11 02:25:50,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-11 02:25:50,240 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:50,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:50,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:25:50,241 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:50,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1922027113, now seen corresponding path program 1 times [2021-10-11 02:25:50,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:50,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938405289] [2021-10-11 02:25:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:50,350 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:50,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938405289] [2021-10-11 02:25:50,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:50,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:50,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136357589] [2021-10-11 02:25:50,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:50,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:50,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:50,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:50,355 INFO L87 Difference]: Start difference. First operand 5151 states and 7368 transitions. Second operand 3 states. [2021-10-11 02:25:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:50,985 INFO L93 Difference]: Finished difference Result 10015 states and 14284 transitions. [2021-10-11 02:25:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:50,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2021-10-11 02:25:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:51,015 INFO L225 Difference]: With dead ends: 10015 [2021-10-11 02:25:51,016 INFO L226 Difference]: Without dead ends: 4865 [2021-10-11 02:25:51,022 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 [2021-10-11 02:25:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2021-10-11 02:25:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4865. [2021-10-11 02:25:51,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4865 states. [2021-10-11 02:25:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 6707 transitions. [2021-10-11 02:25:51,152 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 6707 transitions. Word has length 168 [2021-10-11 02:25:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:51,152 INFO L481 AbstractCegarLoop]: Abstraction has 4865 states and 6707 transitions. [2021-10-11 02:25:51,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 6707 transitions. [2021-10-11 02:25:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-11 02:25:51,161 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:51,162 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:51,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:25:51,162 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash -422246888, now seen corresponding path program 1 times [2021-10-11 02:25:51,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:51,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131660516] [2021-10-11 02:25:51,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:51,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131660516] [2021-10-11 02:25:51,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242483363] [2021-10-11 02:25:51,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:51,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:51,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:51,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:51,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:25:51,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2021-10-11 02:25:51,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121583594] [2021-10-11 02:25:51,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:51,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:51,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:51,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:51,960 INFO L87 Difference]: Start difference. First operand 4865 states and 6707 transitions. Second operand 3 states. [2021-10-11 02:25:52,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:52,805 INFO L93 Difference]: Finished difference Result 11302 states and 15258 transitions. [2021-10-11 02:25:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:52,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2021-10-11 02:25:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:52,847 INFO L225 Difference]: With dead ends: 11302 [2021-10-11 02:25:52,847 INFO L226 Difference]: Without dead ends: 6438 [2021-10-11 02:25:52,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 359 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:52,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6438 states. [2021-10-11 02:25:53,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6438 to 6295. [2021-10-11 02:25:53,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6295 states. [2021-10-11 02:25:53,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6295 states to 6295 states and 8310 transitions. [2021-10-11 02:25:53,075 INFO L78 Accepts]: Start accepts. Automaton has 6295 states and 8310 transitions. Word has length 181 [2021-10-11 02:25:53,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:53,077 INFO L481 AbstractCegarLoop]: Abstraction has 6295 states and 8310 transitions. [2021-10-11 02:25:53,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:53,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6295 states and 8310 transitions. [2021-10-11 02:25:53,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-10-11 02:25:53,087 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:53,088 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:53,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:53,309 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:53,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:53,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1831061472, now seen corresponding path program 1 times [2021-10-11 02:25:53,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:53,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911591237] [2021-10-11 02:25:53,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:53,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911591237] [2021-10-11 02:25:53,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:53,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:53,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981513795] [2021-10-11 02:25:53,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:53,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:53,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:53,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:53,571 INFO L87 Difference]: Start difference. First operand 6295 states and 8310 transitions. Second operand 3 states. [2021-10-11 02:25:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:54,532 INFO L93 Difference]: Finished difference Result 14734 states and 19604 transitions. [2021-10-11 02:25:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:54,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2021-10-11 02:25:54,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:54,581 INFO L225 Difference]: With dead ends: 14734 [2021-10-11 02:25:54,581 INFO L226 Difference]: Without dead ends: 8440 [2021-10-11 02:25:54,590 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:54,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-10-11 02:25:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 7868. [2021-10-11 02:25:54,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7868 states. [2021-10-11 02:25:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7868 states to 7868 states and 10097 transitions. [2021-10-11 02:25:54,783 INFO L78 Accepts]: Start accepts. Automaton has 7868 states and 10097 transitions. Word has length 217 [2021-10-11 02:25:54,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:54,784 INFO L481 AbstractCegarLoop]: Abstraction has 7868 states and 10097 transitions. [2021-10-11 02:25:54,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:54,784 INFO L276 IsEmpty]: Start isEmpty. Operand 7868 states and 10097 transitions. [2021-10-11 02:25:54,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-10-11 02:25:54,799 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:54,799 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:54,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:25:54,800 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash -635284085, now seen corresponding path program 1 times [2021-10-11 02:25:54,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:54,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424389963] [2021-10-11 02:25:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:55,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424389963] [2021-10-11 02:25:55,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302393928] [2021-10-11 02:25:55,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:55,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:25:55,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:55,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:25:55,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:25:55,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 4] total 6 [2021-10-11 02:25:55,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791373121] [2021-10-11 02:25:55,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:55,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:55,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:55,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:55,875 INFO L87 Difference]: Start difference. First operand 7868 states and 10097 transitions. Second operand 3 states. [2021-10-11 02:25:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:56,796 INFO L93 Difference]: Finished difference Result 19882 states and 25456 transitions. [2021-10-11 02:25:56,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:56,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2021-10-11 02:25:56,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:56,820 INFO L225 Difference]: With dead ends: 19882 [2021-10-11 02:25:56,820 INFO L226 Difference]: Without dead ends: 12015 [2021-10-11 02:25:56,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12015 states. [2021-10-11 02:25:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12015 to 11443. [2021-10-11 02:25:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11443 states. [2021-10-11 02:25:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11443 states to 11443 states and 14130 transitions. [2021-10-11 02:25:57,104 INFO L78 Accepts]: Start accepts. Automaton has 11443 states and 14130 transitions. Word has length 221 [2021-10-11 02:25:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:57,105 INFO L481 AbstractCegarLoop]: Abstraction has 11443 states and 14130 transitions. [2021-10-11 02:25:57,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 11443 states and 14130 transitions. [2021-10-11 02:25:57,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-10-11 02:25:57,123 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:57,123 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:57,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-11 02:25:57,346 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1794957722, now seen corresponding path program 1 times [2021-10-11 02:25:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489531651] [2021-10-11 02:25:57,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:57,742 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:57,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489531651] [2021-10-11 02:25:57,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:57,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:57,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616719502] [2021-10-11 02:25:57,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:57,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:57,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:57,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:57,745 INFO L87 Difference]: Start difference. First operand 11443 states and 14130 transitions. Second operand 3 states. [2021-10-11 02:25:58,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:58,627 INFO L93 Difference]: Finished difference Result 26031 states and 32069 transitions. [2021-10-11 02:25:58,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:58,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2021-10-11 02:25:58,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:58,652 INFO L225 Difference]: With dead ends: 26031 [2021-10-11 02:25:58,652 INFO L226 Difference]: Without dead ends: 14589 [2021-10-11 02:25:58,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14589 states. [2021-10-11 02:25:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14589 to 14446. [2021-10-11 02:25:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14446 states. [2021-10-11 02:25:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 17188 transitions. [2021-10-11 02:25:58,969 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 17188 transitions. Word has length 245 [2021-10-11 02:25:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:58,970 INFO L481 AbstractCegarLoop]: Abstraction has 14446 states and 17188 transitions. [2021-10-11 02:25:58,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 17188 transitions. [2021-10-11 02:25:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-10-11 02:25:58,993 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:58,994 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 02:25:58,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:25:58,994 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:58,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:58,995 INFO L82 PathProgramCache]: Analyzing trace with hash -713083227, now seen corresponding path program 1 times [2021-10-11 02:25:58,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:58,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487177665] [2021-10-11 02:25:58,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:59,869 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:59,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487177665] [2021-10-11 02:25:59,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535720815] [2021-10-11 02:25:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:00,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:00,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:26:00,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:26:00,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:00,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-10-11 02:26:00,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107779580] [2021-10-11 02:26:00,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:00,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:00,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:00,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:26:00,882 INFO L87 Difference]: Start difference. First operand 14446 states and 17188 transitions. Second operand 3 states. [2021-10-11 02:26:01,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:01,909 INFO L93 Difference]: Finished difference Result 30893 states and 36789 transitions. [2021-10-11 02:26:01,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:01,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2021-10-11 02:26:01,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:01,948 INFO L225 Difference]: With dead ends: 30893 [2021-10-11 02:26:01,948 INFO L226 Difference]: Without dead ends: 16448 [2021-10-11 02:26:01,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:26:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16448 states. [2021-10-11 02:26:02,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 15447. [2021-10-11 02:26:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15447 states. [2021-10-11 02:26:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15447 states to 15447 states and 18387 transitions. [2021-10-11 02:26:02,211 INFO L78 Accepts]: Start accepts. Automaton has 15447 states and 18387 transitions. Word has length 271 [2021-10-11 02:26:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:02,212 INFO L481 AbstractCegarLoop]: Abstraction has 15447 states and 18387 transitions. [2021-10-11 02:26:02,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 15447 states and 18387 transitions. [2021-10-11 02:26:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-10-11 02:26:02,234 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:02,235 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:02,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:02,450 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:02,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:02,450 INFO L82 PathProgramCache]: Analyzing trace with hash 654369811, now seen corresponding path program 1 times [2021-10-11 02:26:02,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:02,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660182715] [2021-10-11 02:26:02,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:02,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660182715] [2021-10-11 02:26:02,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797405268] [2021-10-11 02:26:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:03,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:03,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:03,494 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:26:03,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:26:03,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:03,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2021-10-11 02:26:03,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928570345] [2021-10-11 02:26:03,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:03,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:03,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:03,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:03,815 INFO L87 Difference]: Start difference. First operand 15447 states and 18387 transitions. Second operand 4 states. [2021-10-11 02:26:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:05,139 INFO L93 Difference]: Finished difference Result 35326 states and 41833 transitions. [2021-10-11 02:26:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:05,139 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 274 [2021-10-11 02:26:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:05,161 INFO L225 Difference]: With dead ends: 35326 [2021-10-11 02:26:05,161 INFO L226 Difference]: Without dead ends: 19880 [2021-10-11 02:26:05,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:05,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19880 states. [2021-10-11 02:26:05,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19880 to 17306. [2021-10-11 02:26:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17306 states. [2021-10-11 02:26:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17306 states to 17306 states and 20405 transitions. [2021-10-11 02:26:05,436 INFO L78 Accepts]: Start accepts. Automaton has 17306 states and 20405 transitions. Word has length 274 [2021-10-11 02:26:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:05,437 INFO L481 AbstractCegarLoop]: Abstraction has 17306 states and 20405 transitions. [2021-10-11 02:26:05,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:05,437 INFO L276 IsEmpty]: Start isEmpty. Operand 17306 states and 20405 transitions. [2021-10-11 02:26:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-10-11 02:26:05,465 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:05,465 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-11 02:26:05,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-11 02:26:05,682 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:05,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:05,682 INFO L82 PathProgramCache]: Analyzing trace with hash 251391636, now seen corresponding path program 2 times [2021-10-11 02:26:05,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:05,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434821755] [2021-10-11 02:26:05,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 137 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:06,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434821755] [2021-10-11 02:26:06,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979250289] [2021-10-11 02:26:06,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:06,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-11 02:26:06,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:26:06,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:06,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-11 02:26:06,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:06,837 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-11 02:26:06,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:06,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2021-10-11 02:26:06,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783092249] [2021-10-11 02:26:06,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:06,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:06,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:06,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:06,839 INFO L87 Difference]: Start difference. First operand 17306 states and 20405 transitions. Second operand 3 states. [2021-10-11 02:26:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:07,660 INFO L93 Difference]: Finished difference Result 35612 states and 41992 transitions. [2021-10-11 02:26:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:07,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2021-10-11 02:26:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:07,677 INFO L225 Difference]: With dead ends: 35612 [2021-10-11 02:26:07,677 INFO L226 Difference]: Without dead ends: 18307 [2021-10-11 02:26:07,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18307 states. [2021-10-11 02:26:07,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18307 to 17449. [2021-10-11 02:26:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17449 states. [2021-10-11 02:26:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17449 states to 17449 states and 20567 transitions. [2021-10-11 02:26:07,941 INFO L78 Accepts]: Start accepts. Automaton has 17449 states and 20567 transitions. Word has length 281 [2021-10-11 02:26:07,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:07,941 INFO L481 AbstractCegarLoop]: Abstraction has 17449 states and 20567 transitions. [2021-10-11 02:26:07,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:07,942 INFO L276 IsEmpty]: Start isEmpty. Operand 17449 states and 20567 transitions. [2021-10-11 02:26:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-10-11 02:26:07,962 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:07,963 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:08,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:08,173 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:08,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:08,174 INFO L82 PathProgramCache]: Analyzing trace with hash 928833300, now seen corresponding path program 1 times [2021-10-11 02:26:08,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:08,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022116444] [2021-10-11 02:26:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 214 proven. 11 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-11 02:26:08,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022116444] [2021-10-11 02:26:08,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624448533] [2021-10-11 02:26:08,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:08,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:08,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-11 02:26:09,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2021-10-11 02:26:09,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:26:09,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 5 [2021-10-11 02:26:09,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806737773] [2021-10-11 02:26:09,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:09,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:09,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:09,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:09,582 INFO L87 Difference]: Start difference. First operand 17449 states and 20567 transitions. Second operand 3 states. [2021-10-11 02:26:10,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:10,509 INFO L93 Difference]: Finished difference Result 37040 states and 43958 transitions. [2021-10-11 02:26:10,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:10,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 362 [2021-10-11 02:26:10,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:10,511 INFO L225 Difference]: With dead ends: 37040 [2021-10-11 02:26:10,511 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:26:10,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 721 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:26:10,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:26:10,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:26:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:26:10,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-10-11 02:26:10,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:10,527 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:26:10,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:10,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:26:10,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:26:10,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-11 02:26:10,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:26:10,961 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 56 [2021-10-11 02:26:11,128 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 56 [2021-10-11 02:26:11,359 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-10-11 02:26:11,620 WARN L197 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2021-10-11 02:26:11,623 INFO L262 CegarLoopResult]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,623 INFO L262 CegarLoopResult]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,623 INFO L262 CegarLoopResult]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,623 INFO L262 CegarLoopResult]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,624 INFO L262 CegarLoopResult]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,625 INFO L262 CegarLoopResult]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,626 INFO L262 CegarLoopResult]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,627 INFO L262 CegarLoopResult]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,628 INFO L262 CegarLoopResult]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,629 INFO L262 CegarLoopResult]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1528) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,630 INFO L262 CegarLoopResult]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,631 INFO L258 CegarLoopResult]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse3 (= ~a27~0 1)) (.cse1 (not (= ~a12~0 1))) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a26~0 1)) (.cse2 (<= ~a3~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 (= ~a11~0 0)) (and .cse0 (<= ~a3~0 0)) (and .cse0 (<= 2 ~a3~0) .cse4) (and .cse0 (or (= ~a11~0 1) (= ~a6~0 1))) (and (= ~a6~0 0) .cse0 (<= ~a26~0 0) .cse3 .cse1) (and .cse0 (not .cse4) .cse2))) [2021-10-11 02:26:11,631 INFO L262 CegarLoopResult]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,631 INFO L262 CegarLoopResult]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-10-11 02:26:11,631 INFO L262 CegarLoopResult]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-10-11 02:26:11,631 INFO L262 CegarLoopResult]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L265 CegarLoopResult]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,632 INFO L262 CegarLoopResult]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,633 INFO L262 CegarLoopResult]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L258 CegarLoopResult]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse3 (= ~a27~0 1)) (.cse1 (not (= ~a12~0 1))) (.cse0 (= ~a5~0 1)) (.cse4 (= ~a26~0 1)) (.cse2 (<= ~a3~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 (= ~a11~0 0)) (and .cse0 (<= ~a3~0 0)) (and .cse0 (<= 2 ~a3~0) .cse4) (and .cse0 (or (= ~a11~0 1) (= ~a6~0 1))) (and (= ~a6~0 0) .cse0 (<= ~a26~0 0) .cse3 .cse1) (and .cse0 (not .cse4) .cse2))) [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,634 INFO L262 CegarLoopResult]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,635 INFO L262 CegarLoopResult]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,636 INFO L262 CegarLoopResult]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,637 INFO L262 CegarLoopResult]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,638 INFO L262 CegarLoopResult]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,639 INFO L262 CegarLoopResult]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,639 INFO L262 CegarLoopResult]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,639 INFO L262 CegarLoopResult]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,639 INFO L262 CegarLoopResult]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-10-11 02:26:11,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:11 BoogieIcfgContainer [2021-10-11 02:26:11,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:11,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:11,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:11,659 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:11,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:40" (3/4) ... [2021-10-11 02:26:11,663 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:26:11,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 119 nodes and edges [2021-10-11 02:26:11,719 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-11 02:26:11,723 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:26:11,727 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:26:11,986 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1be3a0a2-3a38-4aff-bdd9-37cf6784506a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:11,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:11,987 INFO L168 Benchmark]: Toolchain (without parser) took 36958.50 ms. Allocated memory was 113.2 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 69.2 MB in the beginning and 601.3 MB in the end (delta: -532.0 MB). Peak memory consumption was 554.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,988 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory is still 91.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:11,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1222.62 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 69.0 MB in the beginning and 94.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.82 ms. Allocated memory is still 142.6 MB. Free memory was 94.5 MB in the beginning and 79.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,989 INFO L168 Benchmark]: Boogie Preprocessor took 131.73 ms. Allocated memory is still 142.6 MB. Free memory was 79.9 MB in the beginning and 68.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,990 INFO L168 Benchmark]: RCFGBuilder took 3814.32 ms. Allocated memory was 142.6 MB in the beginning and 251.7 MB in the end (delta: 109.1 MB). Free memory was 68.4 MB in the beginning and 188.2 MB in the end (delta: -119.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,990 INFO L168 Benchmark]: TraceAbstraction took 31281.53 ms. Allocated memory was 251.7 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 187.1 MB in the beginning and 638.4 MB in the end (delta: -451.3 MB). Peak memory consumption was 497.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,990 INFO L168 Benchmark]: Witness Printer took 327.18 ms. Allocated memory is still 1.2 GB. Free memory was 638.4 MB in the beginning and 601.3 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:11,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory is still 91.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1222.62 ms. Allocated memory was 113.2 MB in the beginning and 142.6 MB in the end (delta: 29.4 MB). Free memory was 69.0 MB in the beginning and 94.5 MB in the end (delta: -25.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 173.82 ms. Allocated memory is still 142.6 MB. Free memory was 94.5 MB in the beginning and 79.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 131.73 ms. Allocated memory is still 142.6 MB. Free memory was 79.9 MB in the beginning and 68.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3814.32 ms. Allocated memory was 142.6 MB in the beginning and 251.7 MB in the end (delta: 109.1 MB). Free memory was 68.4 MB in the beginning and 188.2 MB in the end (delta: -119.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31281.53 ms. Allocated memory was 251.7 MB in the beginning and 1.2 GB in the end (delta: 947.9 MB). Free memory was 187.1 MB in the beginning and 638.4 MB in the end (delta: -451.3 MB). Peak memory consumption was 497.7 MB. Max. memory is 16.1 GB. * Witness Printer took 327.18 ms. Allocated memory is still 1.2 GB. Free memory was 638.4 MB in the beginning and 601.3 MB in the end (delta: 37.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1528]: 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: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((a5 == 1 && !(a12 == 1)) && a3 <= 1) || ((a5 == 1 && a27 == 1) && a11 == 0)) || (a5 == 1 && a3 <= 0)) || ((a5 == 1 && 2 <= a3) && a26 == 1)) || (a5 == 1 && (a11 == 1 || a6 == 1))) || ((((a6 == 0 && a5 == 1) && a26 <= 0) && a27 == 1) && !(a12 == 1))) || ((a5 == 1 && !(a26 == 1)) && a3 <= 1) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((((((a5 == 1 && !(a12 == 1)) && a3 <= 1) || ((a5 == 1 && a27 == 1) && a11 == 0)) || (a5 == 1 && a3 <= 0)) || ((a5 == 1 && 2 <= a3) && a26 == 1)) || (a5 == 1 && (a11 == 1 || a6 == 1))) || ((((a6 == 0 && a5 == 1) && a26 <= 0) && a27 == 1) && !(a12 == 1))) || ((a5 == 1 && !(a26 == 1)) && a3 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 148 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.2s, OverallIterations: 15, TraceHistogramMax: 4, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1922 SDtfs, 1059 SDslu, 94 SDs, 0 SdLazy, 6715 SolverSat, 1744 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3509 GetRequests, 3472 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17449occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 15 MinimizatonAttempts, 5865 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 257 NumberOfFragments, 157 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10906 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 574 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 4888 NumberOfCodeBlocks, 4757 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 6599 ConstructedInterpolants, 0 QuantifiedInterpolants, 6193013 SizeOfPredicates, 52 NumberOfNonLiveVariables, 3137 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 29 InterpolantComputations, 21 PerfectInterpolantSequences, 2709/2967 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...