./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41aeb4b3eafc96a3464e4411965bc0b5575f7ae7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:50:32,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:50:32,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:50:32,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:50:32,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:50:32,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:50:32,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:50:32,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:50:32,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:50:32,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:50:32,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:50:32,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:50:32,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:50:32,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:50:32,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:50:32,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:50:32,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:50:32,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:50:32,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:50:32,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:50:32,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:50:32,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:50:32,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:50:32,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:50:32,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:50:32,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:50:32,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:50:32,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:50:32,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:50:32,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:50:32,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:50:32,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:50:32,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:50:32,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:50:32,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:50:32,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:50:32,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:50:32,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:50:32,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:50:32,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:50:32,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:50:32,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:50:33,001 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:50:33,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:50:33,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:50:33,002 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:50:33,002 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:50:33,003 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:50:33,003 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:50:33,003 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:50:33,003 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:50:33,003 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:50:33,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:50:33,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:50:33,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:50:33,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:50:33,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:50:33,006 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 41aeb4b3eafc96a3464e4411965bc0b5575f7ae7 [2019-12-07 12:50:33,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:50:33,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:50:33,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:50:33,120 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:50:33,121 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:50:33,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-12-07 12:50:33,160 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/data/72b84289e/c2f1eb4c6283460488c264039229b162/FLAGc67559de2 [2019-12-07 12:50:33,540 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:50:33,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-12-07 12:50:33,547 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/data/72b84289e/c2f1eb4c6283460488c264039229b162/FLAGc67559de2 [2019-12-07 12:50:33,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/data/72b84289e/c2f1eb4c6283460488c264039229b162 [2019-12-07 12:50:33,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:50:33,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:50:33,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:50:33,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:50:33,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:50:33,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:50:33" (1/1) ... [2019-12-07 12:50:33,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a368b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:33, skipping insertion in model container [2019-12-07 12:50:33,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:50:33" (1/1) ... [2019-12-07 12:50:33,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:50:33,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:50:34,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:50:34,158 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:50:34,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:50:34,216 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:50:34,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34 WrapperNode [2019-12-07 12:50:34,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:50:34,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:50:34,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:50:34,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:50:34,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:50:34,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:50:34,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:50:34,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:50:34,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... [2019-12-07 12:50:34,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:50:34,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:50:34,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:50:34,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:50:34,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:50:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:50:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:50:35,248 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:50:35,248 INFO L287 CfgBuilder]: Removed 119 assume(true) statements. [2019-12-07 12:50:35,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:50:35 BoogieIcfgContainer [2019-12-07 12:50:35,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:50:35,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:50:35,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:50:35,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:50:35,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:50:33" (1/3) ... [2019-12-07 12:50:35,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf09c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:50:35, skipping insertion in model container [2019-12-07 12:50:35,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:50:34" (2/3) ... [2019-12-07 12:50:35,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf09c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:50:35, skipping insertion in model container [2019-12-07 12:50:35,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:50:35" (3/3) ... [2019-12-07 12:50:35,255 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.UNBOUNDED.pals.c [2019-12-07 12:50:35,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:50:35,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 23 error locations. [2019-12-07 12:50:35,275 INFO L249 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2019-12-07 12:50:35,293 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:50:35,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:50:35,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:50:35,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:50:35,294 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:50:35,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:50:35,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:50:35,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:50:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2019-12-07 12:50:35,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:50:35,315 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:35,316 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:50:35,316 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:35,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:35,321 INFO L82 PathProgramCache]: Analyzing trace with hash 341399660, now seen corresponding path program 1 times [2019-12-07 12:50:35,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:35,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862332251] [2019-12-07 12:50:35,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:35,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862332251] [2019-12-07 12:50:35,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:35,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:35,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398459319] [2019-12-07 12:50:35,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:35,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:35,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:35,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:35,523 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 3 states. [2019-12-07 12:50:35,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:35,589 INFO L93 Difference]: Finished difference Result 472 states and 737 transitions. [2019-12-07 12:50:35,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:35,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 12:50:35,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:35,600 INFO L225 Difference]: With dead ends: 472 [2019-12-07 12:50:35,600 INFO L226 Difference]: Without dead ends: 236 [2019-12-07 12:50:35,603 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:35,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-07 12:50:35,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212. [2019-12-07 12:50:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-12-07 12:50:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 308 transitions. [2019-12-07 12:50:35,641 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 308 transitions. Word has length 11 [2019-12-07 12:50:35,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:35,641 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 308 transitions. [2019-12-07 12:50:35,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 308 transitions. [2019-12-07 12:50:35,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 12:50:35,642 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:35,642 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:50:35,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash -2070080243, now seen corresponding path program 1 times [2019-12-07 12:50:35,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:35,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928018599] [2019-12-07 12:50:35,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:35,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928018599] [2019-12-07 12:50:35,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:35,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:50:35,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391428483] [2019-12-07 12:50:35,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:50:35,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:35,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:50:35,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:50:35,728 INFO L87 Difference]: Start difference. First operand 212 states and 308 transitions. Second operand 5 states. [2019-12-07 12:50:35,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:35,789 INFO L93 Difference]: Finished difference Result 649 states and 946 transitions. [2019-12-07 12:50:35,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:50:35,789 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-12-07 12:50:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:35,793 INFO L225 Difference]: With dead ends: 649 [2019-12-07 12:50:35,793 INFO L226 Difference]: Without dead ends: 438 [2019-12-07 12:50:35,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:50:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-12-07 12:50:35,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 234. [2019-12-07 12:50:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-12-07 12:50:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 342 transitions. [2019-12-07 12:50:35,817 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 342 transitions. Word has length 15 [2019-12-07 12:50:35,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:35,818 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 342 transitions. [2019-12-07 12:50:35,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:50:35,818 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 342 transitions. [2019-12-07 12:50:35,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 12:50:35,819 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:35,819 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:50:35,820 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:35,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1810736648, now seen corresponding path program 1 times [2019-12-07 12:50:35,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:35,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281080368] [2019-12-07 12:50:35,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:35,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281080368] [2019-12-07 12:50:35,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:35,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:50:35,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977019881] [2019-12-07 12:50:35,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:50:35,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:50:35,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:50:35,886 INFO L87 Difference]: Start difference. First operand 234 states and 342 transitions. Second operand 5 states. [2019-12-07 12:50:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:35,988 INFO L93 Difference]: Finished difference Result 857 states and 1248 transitions. [2019-12-07 12:50:35,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:50:35,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-12-07 12:50:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:35,993 INFO L225 Difference]: With dead ends: 857 [2019-12-07 12:50:35,993 INFO L226 Difference]: Without dead ends: 646 [2019-12-07 12:50:35,995 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:50:35,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2019-12-07 12:50:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 235. [2019-12-07 12:50:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-12-07 12:50:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 343 transitions. [2019-12-07 12:50:36,011 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 343 transitions. Word has length 16 [2019-12-07 12:50:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,011 INFO L462 AbstractCegarLoop]: Abstraction has 235 states and 343 transitions. [2019-12-07 12:50:36,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:50:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 343 transitions. [2019-12-07 12:50:36,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:50:36,012 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,013 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:50:36,013 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,013 INFO L82 PathProgramCache]: Analyzing trace with hash 482055830, now seen corresponding path program 1 times [2019-12-07 12:50:36,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145156675] [2019-12-07 12:50:36,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,072 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145156675] [2019-12-07 12:50:36,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:50:36,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727578919] [2019-12-07 12:50:36,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:50:36,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:50:36,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:50:36,073 INFO L87 Difference]: Start difference. First operand 235 states and 343 transitions. Second operand 4 states. [2019-12-07 12:50:36,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,105 INFO L93 Difference]: Finished difference Result 677 states and 981 transitions. [2019-12-07 12:50:36,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:50:36,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-12-07 12:50:36,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,109 INFO L225 Difference]: With dead ends: 677 [2019-12-07 12:50:36,109 INFO L226 Difference]: Without dead ends: 452 [2019-12-07 12:50:36,110 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:50:36,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-12-07 12:50:36,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 239. [2019-12-07 12:50:36,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-12-07 12:50:36,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 347 transitions. [2019-12-07 12:50:36,121 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 347 transitions. Word has length 18 [2019-12-07 12:50:36,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,122 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 347 transitions. [2019-12-07 12:50:36,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:50:36,122 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 347 transitions. [2019-12-07 12:50:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 12:50:36,123 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,123 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:50:36,123 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1660837388, now seen corresponding path program 1 times [2019-12-07 12:50:36,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531059708] [2019-12-07 12:50:36,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531059708] [2019-12-07 12:50:36,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974109770] [2019-12-07 12:50:36,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,170 INFO L87 Difference]: Start difference. First operand 239 states and 347 transitions. Second operand 3 states. [2019-12-07 12:50:36,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,187 INFO L93 Difference]: Finished difference Result 481 states and 700 transitions. [2019-12-07 12:50:36,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-07 12:50:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,188 INFO L225 Difference]: With dead ends: 481 [2019-12-07 12:50:36,189 INFO L226 Difference]: Without dead ends: 268 [2019-12-07 12:50:36,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-12-07 12:50:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 234. [2019-12-07 12:50:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-12-07 12:50:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 339 transitions. [2019-12-07 12:50:36,195 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 339 transitions. Word has length 20 [2019-12-07 12:50:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,196 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 339 transitions. [2019-12-07 12:50:36,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 339 transitions. [2019-12-07 12:50:36,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:50:36,197 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,197 INFO L410 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] [2019-12-07 12:50:36,197 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,197 INFO L82 PathProgramCache]: Analyzing trace with hash -540599348, now seen corresponding path program 1 times [2019-12-07 12:50:36,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698508546] [2019-12-07 12:50:36,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698508546] [2019-12-07 12:50:36,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458232427] [2019-12-07 12:50:36,234 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,234 INFO L87 Difference]: Start difference. First operand 234 states and 339 transitions. Second operand 3 states. [2019-12-07 12:50:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,283 INFO L93 Difference]: Finished difference Result 480 states and 699 transitions. [2019-12-07 12:50:36,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 12:50:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,286 INFO L225 Difference]: With dead ends: 480 [2019-12-07 12:50:36,286 INFO L226 Difference]: Without dead ends: 272 [2019-12-07 12:50:36,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-12-07 12:50:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 214. [2019-12-07 12:50:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-12-07 12:50:36,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 307 transitions. [2019-12-07 12:50:36,296 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 307 transitions. Word has length 24 [2019-12-07 12:50:36,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,296 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 307 transitions. [2019-12-07 12:50:36,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 307 transitions. [2019-12-07 12:50:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 12:50:36,298 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,298 INFO L410 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] [2019-12-07 12:50:36,298 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,298 INFO L82 PathProgramCache]: Analyzing trace with hash -317062876, now seen corresponding path program 1 times [2019-12-07 12:50:36,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280786286] [2019-12-07 12:50:36,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,342 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280786286] [2019-12-07 12:50:36,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581426648] [2019-12-07 12:50:36,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,344 INFO L87 Difference]: Start difference. First operand 214 states and 307 transitions. Second operand 3 states. [2019-12-07 12:50:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,378 INFO L93 Difference]: Finished difference Result 448 states and 643 transitions. [2019-12-07 12:50:36,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-12-07 12:50:36,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,379 INFO L225 Difference]: With dead ends: 448 [2019-12-07 12:50:36,379 INFO L226 Difference]: Without dead ends: 260 [2019-12-07 12:50:36,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2019-12-07 12:50:36,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 202. [2019-12-07 12:50:36,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-12-07 12:50:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 289 transitions. [2019-12-07 12:50:36,386 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 289 transitions. Word has length 28 [2019-12-07 12:50:36,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,386 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 289 transitions. [2019-12-07 12:50:36,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 289 transitions. [2019-12-07 12:50:36,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 12:50:36,387 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,388 INFO L410 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] [2019-12-07 12:50:36,388 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,388 INFO L82 PathProgramCache]: Analyzing trace with hash -953364564, now seen corresponding path program 1 times [2019-12-07 12:50:36,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715441672] [2019-12-07 12:50:36,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715441672] [2019-12-07 12:50:36,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282832746] [2019-12-07 12:50:36,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,424 INFO L87 Difference]: Start difference. First operand 202 states and 289 transitions. Second operand 3 states. [2019-12-07 12:50:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,466 INFO L93 Difference]: Finished difference Result 444 states and 635 transitions. [2019-12-07 12:50:36,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-12-07 12:50:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,468 INFO L225 Difference]: With dead ends: 444 [2019-12-07 12:50:36,468 INFO L226 Difference]: Without dead ends: 268 [2019-12-07 12:50:36,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-12-07 12:50:36,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 182. [2019-12-07 12:50:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-12-07 12:50:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 257 transitions. [2019-12-07 12:50:36,474 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 257 transitions. Word has length 29 [2019-12-07 12:50:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,474 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 257 transitions. [2019-12-07 12:50:36,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 257 transitions. [2019-12-07 12:50:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-07 12:50:36,475 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,475 INFO L410 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] [2019-12-07 12:50:36,476 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1602550152, now seen corresponding path program 1 times [2019-12-07 12:50:36,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450924705] [2019-12-07 12:50:36,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450924705] [2019-12-07 12:50:36,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:50:36,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352855605] [2019-12-07 12:50:36,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:50:36,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:50:36,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:50:36,556 INFO L87 Difference]: Start difference. First operand 182 states and 257 transitions. Second operand 6 states. [2019-12-07 12:50:36,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,682 INFO L93 Difference]: Finished difference Result 624 states and 870 transitions. [2019-12-07 12:50:36,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 12:50:36,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-12-07 12:50:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,685 INFO L225 Difference]: With dead ends: 624 [2019-12-07 12:50:36,685 INFO L226 Difference]: Without dead ends: 468 [2019-12-07 12:50:36,685 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:50:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-12-07 12:50:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 219. [2019-12-07 12:50:36,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-12-07 12:50:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 311 transitions. [2019-12-07 12:50:36,694 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 311 transitions. Word has length 34 [2019-12-07 12:50:36,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,694 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 311 transitions. [2019-12-07 12:50:36,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:50:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 311 transitions. [2019-12-07 12:50:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 12:50:36,695 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,695 INFO L410 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] [2019-12-07 12:50:36,696 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1756164157, now seen corresponding path program 1 times [2019-12-07 12:50:36,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12012442] [2019-12-07 12:50:36,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12012442] [2019-12-07 12:50:36,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215614896] [2019-12-07 12:50:36,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,727 INFO L87 Difference]: Start difference. First operand 219 states and 311 transitions. Second operand 3 states. [2019-12-07 12:50:36,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,765 INFO L93 Difference]: Finished difference Result 467 states and 658 transitions. [2019-12-07 12:50:36,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-07 12:50:36,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,767 INFO L225 Difference]: With dead ends: 467 [2019-12-07 12:50:36,767 INFO L226 Difference]: Without dead ends: 294 [2019-12-07 12:50:36,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2019-12-07 12:50:36,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 203. [2019-12-07 12:50:36,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-12-07 12:50:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 285 transitions. [2019-12-07 12:50:36,779 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 285 transitions. Word has length 35 [2019-12-07 12:50:36,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,779 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 285 transitions. [2019-12-07 12:50:36,780 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,780 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 285 transitions. [2019-12-07 12:50:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 12:50:36,780 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,781 INFO L410 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] [2019-12-07 12:50:36,781 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,781 INFO L82 PathProgramCache]: Analyzing trace with hash -876583939, now seen corresponding path program 1 times [2019-12-07 12:50:36,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043337407] [2019-12-07 12:50:36,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043337407] [2019-12-07 12:50:36,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:50:36,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705393192] [2019-12-07 12:50:36,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:50:36,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:50:36,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,817 INFO L87 Difference]: Start difference. First operand 203 states and 285 transitions. Second operand 3 states. [2019-12-07 12:50:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,844 INFO L93 Difference]: Finished difference Result 369 states and 520 transitions. [2019-12-07 12:50:36,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:50:36,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-07 12:50:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,846 INFO L225 Difference]: With dead ends: 369 [2019-12-07 12:50:36,846 INFO L226 Difference]: Without dead ends: 225 [2019-12-07 12:50:36,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:50:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-12-07 12:50:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 199. [2019-12-07 12:50:36,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2019-12-07 12:50:36,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 278 transitions. [2019-12-07 12:50:36,854 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 278 transitions. Word has length 35 [2019-12-07 12:50:36,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,854 INFO L462 AbstractCegarLoop]: Abstraction has 199 states and 278 transitions. [2019-12-07 12:50:36,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:50:36,854 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 278 transitions. [2019-12-07 12:50:36,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 12:50:36,855 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,855 INFO L410 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] [2019-12-07 12:50:36,855 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1727893290, now seen corresponding path program 1 times [2019-12-07 12:50:36,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,856 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936251745] [2019-12-07 12:50:36,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:36,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936251745] [2019-12-07 12:50:36,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:36,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:50:36,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625502034] [2019-12-07 12:50:36,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:50:36,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:36,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:50:36,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:50:36,891 INFO L87 Difference]: Start difference. First operand 199 states and 278 transitions. Second operand 4 states. [2019-12-07 12:50:36,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:36,951 INFO L93 Difference]: Finished difference Result 630 states and 868 transitions. [2019-12-07 12:50:36,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:50:36,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-12-07 12:50:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:36,953 INFO L225 Difference]: With dead ends: 630 [2019-12-07 12:50:36,953 INFO L226 Difference]: Without dead ends: 480 [2019-12-07 12:50:36,954 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:50:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2019-12-07 12:50:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 316. [2019-12-07 12:50:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-12-07 12:50:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 432 transitions. [2019-12-07 12:50:36,966 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 432 transitions. Word has length 38 [2019-12-07 12:50:36,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:36,967 INFO L462 AbstractCegarLoop]: Abstraction has 316 states and 432 transitions. [2019-12-07 12:50:36,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:50:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 432 transitions. [2019-12-07 12:50:36,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-07 12:50:36,967 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:36,967 INFO L410 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] [2019-12-07 12:50:36,967 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:36,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:36,968 INFO L82 PathProgramCache]: Analyzing trace with hash -786443337, now seen corresponding path program 1 times [2019-12-07 12:50:36,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:36,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704910663] [2019-12-07 12:50:36,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:37,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704910663] [2019-12-07 12:50:37,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:37,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 12:50:37,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425187237] [2019-12-07 12:50:37,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:50:37,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:37,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:50:37,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:50:37,051 INFO L87 Difference]: Start difference. First operand 316 states and 432 transitions. Second operand 7 states. [2019-12-07 12:50:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:37,334 INFO L93 Difference]: Finished difference Result 1171 states and 1603 transitions. [2019-12-07 12:50:37,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 12:50:37,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-07 12:50:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:37,338 INFO L225 Difference]: With dead ends: 1171 [2019-12-07 12:50:37,338 INFO L226 Difference]: Without dead ends: 934 [2019-12-07 12:50:37,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:50:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-12-07 12:50:37,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 370. [2019-12-07 12:50:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2019-12-07 12:50:37,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 506 transitions. [2019-12-07 12:50:37,359 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 506 transitions. Word has length 38 [2019-12-07 12:50:37,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:37,359 INFO L462 AbstractCegarLoop]: Abstraction has 370 states and 506 transitions. [2019-12-07 12:50:37,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:50:37,359 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 506 transitions. [2019-12-07 12:50:37,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-07 12:50:37,360 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:37,360 INFO L410 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] [2019-12-07 12:50:37,360 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:37,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1566925489, now seen corresponding path program 1 times [2019-12-07 12:50:37,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:37,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155238326] [2019-12-07 12:50:37,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:37,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155238326] [2019-12-07 12:50:37,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:37,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:50:37,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871874695] [2019-12-07 12:50:37,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:50:37,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:37,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:50:37,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:50:37,423 INFO L87 Difference]: Start difference. First operand 370 states and 506 transitions. Second operand 6 states. [2019-12-07 12:50:37,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:37,590 INFO L93 Difference]: Finished difference Result 1151 states and 1580 transitions. [2019-12-07 12:50:37,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 12:50:37,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-12-07 12:50:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:37,594 INFO L225 Difference]: With dead ends: 1151 [2019-12-07 12:50:37,594 INFO L226 Difference]: Without dead ends: 912 [2019-12-07 12:50:37,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:50:37,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2019-12-07 12:50:37,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 374. [2019-12-07 12:50:37,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2019-12-07 12:50:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 511 transitions. [2019-12-07 12:50:37,617 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 511 transitions. Word has length 39 [2019-12-07 12:50:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:37,617 INFO L462 AbstractCegarLoop]: Abstraction has 374 states and 511 transitions. [2019-12-07 12:50:37,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:50:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 511 transitions. [2019-12-07 12:50:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-07 12:50:37,618 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:37,618 INFO L410 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] [2019-12-07 12:50:37,618 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:37,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:37,618 INFO L82 PathProgramCache]: Analyzing trace with hash 547379734, now seen corresponding path program 1 times [2019-12-07 12:50:37,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:37,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64006520] [2019-12-07 12:50:37,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:37,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64006520] [2019-12-07 12:50:37,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:37,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 12:50:37,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777711210] [2019-12-07 12:50:37,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:50:37,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:37,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:50:37,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:50:37,662 INFO L87 Difference]: Start difference. First operand 374 states and 511 transitions. Second operand 4 states. [2019-12-07 12:50:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:37,746 INFO L93 Difference]: Finished difference Result 599 states and 825 transitions. [2019-12-07 12:50:37,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:50:37,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-12-07 12:50:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:37,749 INFO L225 Difference]: With dead ends: 599 [2019-12-07 12:50:37,749 INFO L226 Difference]: Without dead ends: 597 [2019-12-07 12:50:37,750 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:50:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2019-12-07 12:50:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 376. [2019-12-07 12:50:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2019-12-07 12:50:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 513 transitions. [2019-12-07 12:50:37,770 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 513 transitions. Word has length 39 [2019-12-07 12:50:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:37,771 INFO L462 AbstractCegarLoop]: Abstraction has 376 states and 513 transitions. [2019-12-07 12:50:37,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:50:37,771 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 513 transitions. [2019-12-07 12:50:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 12:50:37,771 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:37,771 INFO L410 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] [2019-12-07 12:50:37,771 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:37,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:37,772 INFO L82 PathProgramCache]: Analyzing trace with hash -821558325, now seen corresponding path program 1 times [2019-12-07 12:50:37,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:37,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708043063] [2019-12-07 12:50:37,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:37,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708043063] [2019-12-07 12:50:37,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:37,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 12:50:37,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321840345] [2019-12-07 12:50:37,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 12:50:37,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:37,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 12:50:37,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 12:50:37,843 INFO L87 Difference]: Start difference. First operand 376 states and 513 transitions. Second operand 7 states. [2019-12-07 12:50:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:38,131 INFO L93 Difference]: Finished difference Result 1643 states and 2217 transitions. [2019-12-07 12:50:38,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 12:50:38,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-07 12:50:38,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:38,137 INFO L225 Difference]: With dead ends: 1643 [2019-12-07 12:50:38,137 INFO L226 Difference]: Without dead ends: 1379 [2019-12-07 12:50:38,138 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:50:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2019-12-07 12:50:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 457. [2019-12-07 12:50:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-12-07 12:50:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 616 transitions. [2019-12-07 12:50:38,175 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 616 transitions. Word has length 40 [2019-12-07 12:50:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:38,175 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 616 transitions. [2019-12-07 12:50:38,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 12:50:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 616 transitions. [2019-12-07 12:50:38,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 12:50:38,176 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:38,176 INFO L410 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] [2019-12-07 12:50:38,176 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:38,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:38,176 INFO L82 PathProgramCache]: Analyzing trace with hash 2050935946, now seen corresponding path program 1 times [2019-12-07 12:50:38,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:38,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602934889] [2019-12-07 12:50:38,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:50:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:50:38,227 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602934889] [2019-12-07 12:50:38,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:50:38,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:50:38,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520434127] [2019-12-07 12:50:38,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 12:50:38,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:50:38,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:50:38,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:50:38,228 INFO L87 Difference]: Start difference. First operand 457 states and 616 transitions. Second operand 6 states. [2019-12-07 12:50:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:50:38,346 INFO L93 Difference]: Finished difference Result 1015 states and 1409 transitions. [2019-12-07 12:50:38,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 12:50:38,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-12-07 12:50:38,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:50:38,349 INFO L225 Difference]: With dead ends: 1015 [2019-12-07 12:50:38,349 INFO L226 Difference]: Without dead ends: 720 [2019-12-07 12:50:38,350 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:50:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2019-12-07 12:50:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 463. [2019-12-07 12:50:38,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-12-07 12:50:38,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 622 transitions. [2019-12-07 12:50:38,376 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 622 transitions. Word has length 40 [2019-12-07 12:50:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:50:38,376 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 622 transitions. [2019-12-07 12:50:38,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 12:50:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 622 transitions. [2019-12-07 12:50:38,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-12-07 12:50:38,376 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:50:38,377 INFO L410 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] [2019-12-07 12:50:38,377 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:50:38,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:50:38,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1021985610, now seen corresponding path program 1 times [2019-12-07 12:50:38,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:50:38,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995483710] [2019-12-07 12:50:38,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:50:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:50:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:50:38,445 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 12:50:38,446 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:50:38,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:50:38 BoogieIcfgContainer [2019-12-07 12:50:38,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:50:38,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:50:38,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:50:38,525 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:50:38,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:50:35" (3/4) ... [2019-12-07 12:50:38,527 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:50:38,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b5842dc4-5767-447d-81cc-8a299fd49141/bin/utaipan/witness.graphml [2019-12-07 12:50:38,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:50:38,613 INFO L168 Benchmark]: Toolchain (without parser) took 4700.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 941.6 MB in the beginning and 1.0 GB in the end (delta: -98.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,613 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:50:38,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,614 INFO L168 Benchmark]: Boogie Preprocessor took 44.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,614 INFO L168 Benchmark]: RCFGBuilder took 941.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.8 MB in the end (delta: 169.6 MB). Peak memory consumption was 169.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,615 INFO L168 Benchmark]: TraceAbstraction took 3274.56 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 900.8 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:50:38,615 INFO L168 Benchmark]: Witness Printer took 86.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:50:38,617 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 957.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 941.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 900.8 MB in the end (delta: 169.6 MB). Peak memory consumption was 169.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3274.56 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 900.8 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 86.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 661]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] msg_t nomsg = (msg_t )-1; [L70] port_t cs1 ; [L71] int8_t cs1_old ; [L72] int8_t cs1_new ; [L73] port_t cs2 ; [L74] int8_t cs2_old ; [L75] int8_t cs2_new ; [L76] port_t s1s2 ; [L77] int8_t s1s2_old ; [L78] int8_t s1s2_new ; [L79] port_t s1s1 ; [L80] int8_t s1s1_old ; [L81] int8_t s1s1_new ; [L82] port_t s2s1 ; [L83] int8_t s2s1_old ; [L84] int8_t s2s1_new ; [L85] port_t s2s2 ; [L86] int8_t s2s2_old ; [L87] int8_t s2s2_new ; [L88] port_t s1p ; [L89] int8_t s1p_old ; [L90] int8_t s1p_new ; [L91] port_t s2p ; [L92] int8_t s2p_old ; [L93] int8_t s2p_new ; [L96] _Bool side1Failed ; [L97] _Bool side2Failed ; [L98] msg_t side1_written ; [L99] msg_t side2_written ; [L102] static _Bool side1Failed_History_0 ; [L103] static _Bool side1Failed_History_1 ; [L104] static _Bool side1Failed_History_2 ; [L105] static _Bool side2Failed_History_0 ; [L106] static _Bool side2Failed_History_1 ; [L107] static _Bool side2Failed_History_2 ; [L108] static int8_t active_side_History_0 ; [L109] static int8_t active_side_History_1 ; [L110] static int8_t active_side_History_2 ; [L111] static msg_t manual_selection_History_0 ; [L112] static msg_t manual_selection_History_1 ; [L113] static msg_t manual_selection_History_2 ; [L463] void (*nodes[4])(void) = { & Console_task_each_pals_period, & Side1_activestandby_task_each_pals_period, & Side2_activestandby_task_each_pals_period, & Pendulum_prism_task_each_pals_period}; [L585] int c1 ; [L586] int i2 ; [L589] c1 = 0 [L590] side1Failed = __VERIFIER_nondet_bool() [L591] side2Failed = __VERIFIER_nondet_bool() [L592] side1_written = __VERIFIER_nondet_char() [L593] side2_written = __VERIFIER_nondet_char() [L594] side1Failed_History_0 = __VERIFIER_nondet_bool() [L595] side1Failed_History_1 = __VERIFIER_nondet_bool() [L596] side1Failed_History_2 = __VERIFIER_nondet_bool() [L597] side2Failed_History_0 = __VERIFIER_nondet_bool() [L598] side2Failed_History_1 = __VERIFIER_nondet_bool() [L599] side2Failed_History_2 = __VERIFIER_nondet_bool() [L600] active_side_History_0 = __VERIFIER_nondet_char() [L601] active_side_History_1 = __VERIFIER_nondet_char() [L602] active_side_History_2 = __VERIFIER_nondet_char() [L603] manual_selection_History_0 = __VERIFIER_nondet_char() [L604] manual_selection_History_1 = __VERIFIER_nondet_char() [L605] manual_selection_History_2 = __VERIFIER_nondet_char() [L239] COND FALSE !((int )side1Failed_History_0 != 0) [L242] COND FALSE !((int )side2Failed_History_0 != 0) [L245] COND FALSE !((int )active_side_History_0 != -2) [L248] COND FALSE !((int )manual_selection_History_0 != 0) [L251] COND FALSE !((int )side1Failed_History_1 != 0) [L254] COND FALSE !((int )side2Failed_History_1 != 0) [L257] COND FALSE !((int )active_side_History_1 != -2) [L260] COND FALSE !((int )manual_selection_History_1 != 0) [L263] COND FALSE !((int )side1Failed_History_2 != 0) [L266] COND FALSE !((int )side2Failed_History_2 != 0) [L269] COND FALSE !((int )active_side_History_2 != -2) [L272] COND FALSE !((int )manual_selection_History_2 != 0) [L275] return (1); [L606] i2 = init() [L608] cs1_old = nomsg [L609] cs1_new = nomsg [L610] cs2_old = nomsg [L611] cs2_new = nomsg [L612] s1s2_old = nomsg [L613] s1s2_new = nomsg [L614] s1s1_old = nomsg [L615] s1s1_new = nomsg [L616] s2s1_old = nomsg [L617] s2s1_new = nomsg [L618] s2s2_old = nomsg [L619] s2s2_new = nomsg [L620] s1p_old = nomsg [L621] s1p_new = nomsg [L622] s2p_old = nomsg [L623] s2p_new = nomsg [L624] i2 = 0 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-1, cs2=0, cs2_new=-1, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L625] COND TRUE 1 [L293] msg_t manual_selection ; [L294] char tmp ; [L297] tmp = __VERIFIER_nondet_char() [L298] manual_selection = tmp [L209] manual_selection_History_2 = manual_selection_History_1 [L210] manual_selection_History_1 = manual_selection_History_0 [L211] manual_selection_History_0 = val [L300] EXPR manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L300] cs1_new = manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L301] EXPR manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L301] cs2_new = manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L302] manual_selection = (msg_t )0 [L308] int8_t side1 ; [L309] int8_t side2 ; [L310] msg_t manual_selection ; [L311] int8_t next_state ; [L314] side1 = nomsg [L315] side2 = nomsg [L316] manual_selection = (msg_t )0 [L317] side1Failed = __VERIFIER_nondet_bool() [L119] side1Failed_History_2 = side1Failed_History_1 [L120] side1Failed_History_1 = side1Failed_History_0 [L121] side1Failed_History_0 = val VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L319] COND FALSE !(\read(side1Failed)) [L326] side1 = s1s1_old [L327] s1s1_old = nomsg [L328] side2 = s2s1_old [L329] s2s1_old = nomsg [L330] manual_selection = cs1_old [L331] cs1_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L332] COND TRUE (int )side1 == (int )side2 [L333] next_state = (int8_t )1 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L356] EXPR next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L356] s1s1_new = next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L357] EXPR next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L357] s1s2_new = next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L358] EXPR next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L358] s1p_new = next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L359] side1_written = next_state VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L365] int8_t side1 ; [L366] int8_t side2 ; [L367] msg_t manual_selection ; [L368] int8_t next_state ; [L371] side1 = nomsg [L372] side2 = nomsg [L373] manual_selection = (msg_t )0 [L374] side2Failed = __VERIFIER_nondet_bool() [L149] side2Failed_History_2 = side2Failed_History_1 [L150] side2Failed_History_1 = side2Failed_History_0 [L151] side2Failed_History_0 = val VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L376] COND FALSE !(\read(side2Failed)) [L383] side1 = s1s2_old [L384] s1s2_old = nomsg [L385] side2 = s2s2_old [L386] s2s2_old = nomsg [L387] manual_selection = cs2_old [L388] cs2_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L389] COND TRUE (int )side1 == (int )side2 [L390] next_state = (int8_t )1 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L413] EXPR next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L413] s2s1_new = next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L414] EXPR next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L414] s2s2_new = next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L415] EXPR next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L415] s2p_new = next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L416] side2_written = next_state VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L422] int8_t active_side ; [L423] int8_t tmp ; [L424] int8_t side1 ; [L425] int8_t side2 ; [L190] COND TRUE (int )index == 0 [L191] return (active_side_History_0); VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L428] tmp = read_active_side_history((unsigned char)0) [L429] active_side = tmp [L430] side1 = nomsg [L431] side2 = nomsg [L432] side1 = s1p_old [L433] s1p_old = nomsg [L434] side2 = s2p_old [L435] s2p_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L436] COND FALSE !((int )side1 == 1) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L439] COND FALSE !((int )side2 == 1) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L442] COND FALSE !((int )side1 == 0) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L450] COND TRUE (int )side1 == (int )nomsg [L451] COND FALSE !((int )side2 == 0) [L454] active_side = (int8_t )0 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=0, cs1_old=-1, cs2=0, cs2_new=0, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L179] active_side_History_2 = active_side_History_1 [L180] active_side_History_1 = active_side_History_0 [L181] active_side_History_0 = val [L631] cs1_old = cs1_new [L632] cs1_new = nomsg [L633] cs2_old = cs2_new [L634] cs2_new = nomsg [L635] s1s2_old = s1s2_new [L636] s1s2_new = nomsg [L637] s1s1_old = s1s1_new [L638] s1s1_new = nomsg [L639] s2s1_old = s2s1_new [L640] s2s1_new = nomsg [L641] s2s2_old = s2s2_new [L642] s2s2_new = nomsg [L643] s1p_old = s1p_new [L644] s1p_new = nomsg [L645] s2p_old = s2p_new [L646] s2p_new = nomsg [L466] int tmp ; [L467] msg_t tmp___0 ; [L468] _Bool tmp___1 ; [L469] _Bool tmp___2 ; [L470] _Bool tmp___3 ; [L471] _Bool tmp___4 ; [L472] int8_t tmp___5 ; [L473] _Bool tmp___6 ; [L474] _Bool tmp___7 ; [L475] _Bool tmp___8 ; [L476] int8_t tmp___9 ; [L477] _Bool tmp___10 ; [L478] _Bool tmp___11 ; [L479] _Bool tmp___12 ; [L480] msg_t tmp___13 ; [L481] _Bool tmp___14 ; [L482] _Bool tmp___15 ; [L483] _Bool tmp___16 ; [L484] _Bool tmp___17 ; [L485] int8_t tmp___18 ; [L486] int8_t tmp___19 ; [L487] int8_t tmp___20 ; [L490] COND TRUE ! side1Failed [L491] tmp = 1 [L220] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L223] COND TRUE (int )index == 1 [L224] return (manual_selection_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L499] tmp___0 = read_manual_selection_history((unsigned char)1) [L500] COND TRUE ! tmp___0 [L130] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L133] COND TRUE (int )index == 1 [L134] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L501] tmp___1 = read_side1_failed_history((unsigned char)1) [L502] COND TRUE ! tmp___1 [L130] COND TRUE (int )index == 0 [L131] return (side1Failed_History_0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L503] tmp___2 = read_side1_failed_history((unsigned char)0) [L504] COND TRUE ! tmp___2 [L160] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L163] COND TRUE (int )index == 1 [L164] return (side2Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L505] tmp___3 = read_side2_failed_history((unsigned char)1) [L506] COND TRUE ! tmp___3 [L160] COND TRUE (int )index == 0 [L161] return (side2Failed_History_0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L507] tmp___4 = read_side2_failed_history((unsigned char)0) [L508] COND TRUE ! tmp___4 VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L509] COND FALSE !(! ((int )side1_written == 1)) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L514] COND FALSE !(! (! ((int )side1_written == 0))) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L519] COND TRUE ! (! ((int )side1_written == 1)) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L520] COND TRUE ! ((int )side2_written == 0) [L521] return (0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L647] c1 = check() [L659] COND TRUE ! arg VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L661] __VERIFIER_error() VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=0, cs2=0, cs2_new=-1, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 237 locations, 23 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 18, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5888 SDtfs, 6769 SDslu, 10899 SDs, 0 SdLazy, 801 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 35 SyntacticMatches, 11 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 4120 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 57883 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...