./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc86cc3add356b600fcf92e092d72b9013e4f56a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc86cc3add356b600fcf92e092d72b9013e4f56a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.1-dev-4e77c04 [2021-10-13 07:58:42,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:58:42,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:58:42,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:58:42,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:58:42,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:58:42,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:58:42,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:58:42,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:58:42,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:58:42,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:58:42,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:58:42,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:58:42,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:58:42,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:58:42,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:58:42,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:58:42,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:58:42,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:58:42,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:58:42,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:58:42,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:58:42,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:58:42,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:58:42,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:58:42,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:58:42,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:58:42,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:58:42,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:58:42,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:58:42,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:58:42,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:58:42,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:58:42,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:58:42,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:58:42,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:58:42,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:58:42,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:58:42,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:58:42,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:58:42,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:58:42,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:58:42,348 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:58:42,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:58:42,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:58:42,350 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:58:42,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:58:42,351 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:58:42,351 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:58:42,352 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:58:42,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:58:42,352 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:58:42,353 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:58:42,354 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:58:42,354 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:58:42,355 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:58:42,355 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:58:42,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:58:42,356 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:58:42,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:58:42,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:58:42,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:58:42,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:58:42,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:58:42,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:58:42,358 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:58:42,359 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:58:42,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:58:42,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:58:42,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:58:42,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:58:42,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:58:42,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:58:42,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:58:42,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:58:42,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:58:42,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:58:42,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:58:42,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:58:42,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:58:42,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:58:42,364 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc86cc3add356b600fcf92e092d72b9013e4f56a [2021-10-13 07:58:42,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:58:42,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:58:42,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:58:42,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:58:42,705 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:58:42,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:58:42,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/e79691432/fa576e0d989a4c83a858652ed9f50f0d/FLAG76bb4d818 [2021-10-13 07:58:43,375 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:58:43,375 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:58:43,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/e79691432/fa576e0d989a4c83a858652ed9f50f0d/FLAG76bb4d818 [2021-10-13 07:58:43,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/e79691432/fa576e0d989a4c83a858652ed9f50f0d [2021-10-13 07:58:43,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:58:43,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:58:43,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:58:43,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:58:43,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:58:43,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:58:43" (1/1) ... [2021-10-13 07:58:43,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674e2143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:43, skipping insertion in model container [2021-10-13 07:58:43,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:58:43" (1/1) ... [2021-10-13 07:58:43,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:58:43,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:58:44,005 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c[14522,14535] [2021-10-13 07:58:44,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:58:44,019 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:58:44,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c[14522,14535] [2021-10-13 07:58:44,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:58:44,120 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:58:44,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44 WrapperNode [2021-10-13 07:58:44,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:58:44,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:58:44,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:58:44,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:58:44,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:58:44,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:58:44,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:58:44,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:58:44,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:58:44,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:58:44,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:58:44,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:58:44,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (1/1) ... [2021-10-13 07:58:44,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:58:44,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:58:44,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:58:44,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:58:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:58:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:58:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:58:44,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:58:46,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:58:46,492 INFO L299 CfgBuilder]: Removed 123 assume(true) statements. [2021-10-13 07:58:46,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:58:46 BoogieIcfgContainer [2021-10-13 07:58:46,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:58:46,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:58:46,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:58:46,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:58:46,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:58:43" (1/3) ... [2021-10-13 07:58:46,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501d6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:58:46, skipping insertion in model container [2021-10-13 07:58:46,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:44" (2/3) ... [2021-10-13 07:58:46,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501d6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:58:46, skipping insertion in model container [2021-10-13 07:58:46,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:58:46" (3/3) ... [2021-10-13 07:58:46,509 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:58:46,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:58:46,519 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-10-13 07:58:46,572 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:58:46,579 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:58:46,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-10-13 07:58:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 207 states have (on average 1.7294685990338163) internal successors, (358), 230 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:46,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:58:46,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:46,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:46,613 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:46,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1249834038, now seen corresponding path program 1 times [2021-10-13 07:58:46,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:46,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858552848] [2021-10-13 07:58:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:46,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:47,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:47,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858552848] [2021-10-13 07:58:47,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858552848] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:47,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:47,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:47,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124464359] [2021-10-13 07:58:47,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:47,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:47,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,069 INFO L87 Difference]: Start difference. First operand has 231 states, 207 states have (on average 1.7294685990338163) internal successors, (358), 230 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:47,174 INFO L93 Difference]: Finished difference Result 460 states and 717 transitions. [2021-10-13 07:58:47,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:58:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:47,214 INFO L225 Difference]: With dead ends: 460 [2021-10-13 07:58:47,214 INFO L226 Difference]: Without dead ends: 230 [2021-10-13 07:58:47,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-13 07:58:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 206. [2021-10-13 07:58:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 187 states have (on average 1.5935828877005347) internal successors, (298), 205 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 298 transitions. [2021-10-13 07:58:47,273 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 298 transitions. Word has length 11 [2021-10-13 07:58:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:47,273 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 298 transitions. [2021-10-13 07:58:47,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 298 transitions. [2021-10-13 07:58:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:58:47,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:47,275 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:47,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:58:47,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1077876091, now seen corresponding path program 1 times [2021-10-13 07:58:47,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:47,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487206183] [2021-10-13 07:58:47,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:47,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:47,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:47,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487206183] [2021-10-13 07:58:47,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487206183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:47,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:47,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:47,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914767694] [2021-10-13 07:58:47,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:47,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:47,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:47,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,388 INFO L87 Difference]: Start difference. First operand 206 states and 298 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:47,416 INFO L93 Difference]: Finished difference Result 432 states and 627 transitions. [2021-10-13 07:58:47,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:47,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:58:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:47,419 INFO L225 Difference]: With dead ends: 432 [2021-10-13 07:58:47,419 INFO L226 Difference]: Without dead ends: 227 [2021-10-13 07:58:47,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-13 07:58:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 201. [2021-10-13 07:58:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 183 states have (on average 1.5846994535519126) internal successors, (290), 200 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 290 transitions. [2021-10-13 07:58:47,439 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 290 transitions. Word has length 13 [2021-10-13 07:58:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:47,439 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 290 transitions. [2021-10-13 07:58:47,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 290 transitions. [2021-10-13 07:58:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:58:47,441 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:47,441 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:47,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:58:47,442 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:47,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:47,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1986091939, now seen corresponding path program 1 times [2021-10-13 07:58:47,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:47,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207989488] [2021-10-13 07:58:47,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:47,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:47,541 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:47,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207989488] [2021-10-13 07:58:47,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207989488] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:47,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:47,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:47,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934616830] [2021-10-13 07:58:47,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:47,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:47,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:47,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,544 INFO L87 Difference]: Start difference. First operand 201 states and 290 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:47,627 INFO L93 Difference]: Finished difference Result 431 states and 626 transitions. [2021-10-13 07:58:47,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:47,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 07:58:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:47,631 INFO L225 Difference]: With dead ends: 431 [2021-10-13 07:58:47,632 INFO L226 Difference]: Without dead ends: 231 [2021-10-13 07:58:47,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-13 07:58:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 181. [2021-10-13 07:58:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 167 states have (on average 1.5449101796407185) internal successors, (258), 180 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 258 transitions. [2021-10-13 07:58:47,664 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 258 transitions. Word has length 17 [2021-10-13 07:58:47,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:47,665 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 258 transitions. [2021-10-13 07:58:47,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 258 transitions. [2021-10-13 07:58:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 07:58:47,668 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:47,668 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:47,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:58:47,669 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:47,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:47,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1474939317, now seen corresponding path program 1 times [2021-10-13 07:58:47,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:47,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081366426] [2021-10-13 07:58:47,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:47,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:47,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:47,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081366426] [2021-10-13 07:58:47,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081366426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:47,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:47,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:47,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353683620] [2021-10-13 07:58:47,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:47,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:47,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,770 INFO L87 Difference]: Start difference. First operand 181 states and 258 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:47,835 INFO L93 Difference]: Finished difference Result 399 states and 570 transitions. [2021-10-13 07:58:47,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:47,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-13 07:58:47,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:47,838 INFO L225 Difference]: With dead ends: 399 [2021-10-13 07:58:47,838 INFO L226 Difference]: Without dead ends: 219 [2021-10-13 07:58:47,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:47,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-13 07:58:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 169. [2021-10-13 07:58:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.5286624203821657) internal successors, (240), 168 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2021-10-13 07:58:47,862 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 21 [2021-10-13 07:58:47,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:47,863 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2021-10-13 07:58:47,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2021-10-13 07:58:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:58:47,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:47,864 INFO L512 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] [2021-10-13 07:58:47,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:58:47,877 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:47,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:47,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1235871427, now seen corresponding path program 1 times [2021-10-13 07:58:47,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:47,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873874494] [2021-10-13 07:58:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:47,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:48,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:48,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873874494] [2021-10-13 07:58:48,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873874494] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:48,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:48,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:48,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274968063] [2021-10-13 07:58:48,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:48,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:48,034 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:48,095 INFO L93 Difference]: Finished difference Result 395 states and 562 transitions. [2021-10-13 07:58:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:48,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 07:58:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:48,098 INFO L225 Difference]: With dead ends: 395 [2021-10-13 07:58:48,098 INFO L226 Difference]: Without dead ends: 227 [2021-10-13 07:58:48,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:48,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-13 07:58:48,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 149. [2021-10-13 07:58:48,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 141 states have (on average 1.475177304964539) internal successors, (208), 148 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2021-10-13 07:58:48,114 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 208 transitions. Word has length 22 [2021-10-13 07:58:48,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:48,115 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-13 07:58:48,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,115 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 208 transitions. [2021-10-13 07:58:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:58:48,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:48,120 INFO L512 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] [2021-10-13 07:58:48,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:58:48,121 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1279471369, now seen corresponding path program 1 times [2021-10-13 07:58:48,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:48,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803329404] [2021-10-13 07:58:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:48,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:48,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:48,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803329404] [2021-10-13 07:58:48,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803329404] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:48,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:48,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:58:48,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506765610] [2021-10-13 07:58:48,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:48,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:48,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:48,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:48,351 INFO L87 Difference]: Start difference. First operand 149 states and 208 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:48,404 INFO L93 Difference]: Finished difference Result 440 states and 611 transitions. [2021-10-13 07:58:48,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:58:48,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 07:58:48,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:48,409 INFO L225 Difference]: With dead ends: 440 [2021-10-13 07:58:48,409 INFO L226 Difference]: Without dead ends: 289 [2021-10-13 07:58:48,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:48,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-13 07:58:48,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 151. [2021-10-13 07:58:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 143 states have (on average 1.4685314685314685) internal successors, (210), 150 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 210 transitions. [2021-10-13 07:58:48,421 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 210 transitions. Word has length 27 [2021-10-13 07:58:48,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:48,422 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 210 transitions. [2021-10-13 07:58:48,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 210 transitions. [2021-10-13 07:58:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:58:48,426 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:48,426 INFO L512 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] [2021-10-13 07:58:48,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:58:48,427 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:48,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:48,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1362861293, now seen corresponding path program 1 times [2021-10-13 07:58:48,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:48,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377343022] [2021-10-13 07:58:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:48,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:48,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:48,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377343022] [2021-10-13 07:58:48,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377343022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:48,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:48,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:58:48,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130993221] [2021-10-13 07:58:48,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:58:48,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:48,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:58:48,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:48,678 INFO L87 Difference]: Start difference. First operand 151 states and 210 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:48,889 INFO L93 Difference]: Finished difference Result 594 states and 822 transitions. [2021-10-13 07:58:48,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:58:48,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 07:58:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:48,893 INFO L225 Difference]: With dead ends: 594 [2021-10-13 07:58:48,893 INFO L226 Difference]: Without dead ends: 444 [2021-10-13 07:58:48,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:58:48,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-10-13 07:58:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 207. [2021-10-13 07:58:48,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 199 states have (on average 1.4723618090452262) internal successors, (293), 206 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 293 transitions. [2021-10-13 07:58:48,910 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 293 transitions. Word has length 29 [2021-10-13 07:58:48,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:48,910 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 293 transitions. [2021-10-13 07:58:48,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:48,911 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 293 transitions. [2021-10-13 07:58:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 07:58:48,912 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:48,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:48,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:58:48,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:48,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1379223178, now seen corresponding path program 1 times [2021-10-13 07:58:48,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:48,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624430429] [2021-10-13 07:58:48,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:48,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:48,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:48,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624430429] [2021-10-13 07:58:48,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624430429] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:48,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:48,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:48,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200483300] [2021-10-13 07:58:48,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:48,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:48,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:48,983 INFO L87 Difference]: Start difference. First operand 207 states and 293 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:49,040 INFO L93 Difference]: Finished difference Result 443 states and 620 transitions. [2021-10-13 07:58:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:49,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-13 07:58:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:49,043 INFO L225 Difference]: With dead ends: 443 [2021-10-13 07:58:49,043 INFO L226 Difference]: Without dead ends: 276 [2021-10-13 07:58:49,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:49,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-10-13 07:58:49,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 191. [2021-10-13 07:58:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 185 states have (on average 1.4432432432432432) internal successors, (267), 190 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 267 transitions. [2021-10-13 07:58:49,057 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 267 transitions. Word has length 30 [2021-10-13 07:58:49,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:49,057 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 267 transitions. [2021-10-13 07:58:49,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,058 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 267 transitions. [2021-10-13 07:58:49,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 07:58:49,059 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:49,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:49,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:58:49,059 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:49,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:49,060 INFO L82 PathProgramCache]: Analyzing trace with hash -2036163900, now seen corresponding path program 1 times [2021-10-13 07:58:49,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:49,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389561874] [2021-10-13 07:58:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:49,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:49,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:49,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389561874] [2021-10-13 07:58:49,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389561874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:49,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:49,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:49,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739271881] [2021-10-13 07:58:49,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:49,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:49,168 INFO L87 Difference]: Start difference. First operand 191 states and 267 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:49,206 INFO L93 Difference]: Finished difference Result 351 states and 492 transitions. [2021-10-13 07:58:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-13 07:58:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:49,213 INFO L225 Difference]: With dead ends: 351 [2021-10-13 07:58:49,213 INFO L226 Difference]: Without dead ends: 213 [2021-10-13 07:58:49,213 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-13 07:58:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 187. [2021-10-13 07:58:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.4285714285714286) internal successors, (260), 186 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 260 transitions. [2021-10-13 07:58:49,226 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 260 transitions. Word has length 30 [2021-10-13 07:58:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:49,226 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 260 transitions. [2021-10-13 07:58:49,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 260 transitions. [2021-10-13 07:58:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:58:49,227 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:49,228 INFO L512 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] [2021-10-13 07:58:49,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:58:49,228 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:49,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:49,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1942419569, now seen corresponding path program 1 times [2021-10-13 07:58:49,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:49,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030026275] [2021-10-13 07:58:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:49,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:49,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:49,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030026275] [2021-10-13 07:58:49,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030026275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:49,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:58:49,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672677148] [2021-10-13 07:58:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:49,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:49,292 INFO L87 Difference]: Start difference. First operand 187 states and 260 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:49,373 INFO L93 Difference]: Finished difference Result 600 states and 822 transitions. [2021-10-13 07:58:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:58:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:58:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:49,377 INFO L225 Difference]: With dead ends: 600 [2021-10-13 07:58:49,377 INFO L226 Difference]: Without dead ends: 456 [2021-10-13 07:58:49,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:58:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-13 07:58:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 292. [2021-10-13 07:58:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.3797909407665505) internal successors, (396), 291 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 396 transitions. [2021-10-13 07:58:49,424 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 396 transitions. Word has length 33 [2021-10-13 07:58:49,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:49,426 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 396 transitions. [2021-10-13 07:58:49,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,426 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 396 transitions. [2021-10-13 07:58:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:58:49,427 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:49,428 INFO L512 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] [2021-10-13 07:58:49,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 07:58:49,429 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:49,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:49,429 INFO L82 PathProgramCache]: Analyzing trace with hash 579467442, now seen corresponding path program 1 times [2021-10-13 07:58:49,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:49,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602281763] [2021-10-13 07:58:49,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:49,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:49,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:49,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602281763] [2021-10-13 07:58:49,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602281763] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:49,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:49,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:58:49,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709334025] [2021-10-13 07:58:49,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:58:49,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:49,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:58:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:58:49,607 INFO L87 Difference]: Start difference. First operand 292 states and 396 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:49,984 INFO L93 Difference]: Finished difference Result 1069 states and 1439 transitions. [2021-10-13 07:58:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:58:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:58:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:49,991 INFO L225 Difference]: With dead ends: 1069 [2021-10-13 07:58:49,991 INFO L226 Difference]: Without dead ends: 844 [2021-10-13 07:58:49,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 82.6ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:58:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-10-13 07:58:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 334. [2021-10-13 07:58:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 329 states have (on average 1.3738601823708207) internal successors, (452), 333 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 452 transitions. [2021-10-13 07:58:50,025 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 452 transitions. Word has length 33 [2021-10-13 07:58:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:50,026 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 452 transitions. [2021-10-13 07:58:50,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 452 transitions. [2021-10-13 07:58:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 07:58:50,027 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:50,027 INFO L512 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] [2021-10-13 07:58:50,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 07:58:50,027 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash 543623446, now seen corresponding path program 1 times [2021-10-13 07:58:50,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:50,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884405215] [2021-10-13 07:58:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:50,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:50,127 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:50,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884405215] [2021-10-13 07:58:50,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884405215] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:50,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:50,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:58:50,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630924522] [2021-10-13 07:58:50,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:58:50,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:50,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:58:50,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:50,129 INFO L87 Difference]: Start difference. First operand 334 states and 452 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:50,387 INFO L93 Difference]: Finished difference Result 1043 states and 1406 transitions. [2021-10-13 07:58:50,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:58:50,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-13 07:58:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:50,393 INFO L225 Difference]: With dead ends: 1043 [2021-10-13 07:58:50,393 INFO L226 Difference]: Without dead ends: 822 [2021-10-13 07:58:50,396 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 54.2ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:58:50,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-10-13 07:58:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 338. [2021-10-13 07:58:50,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 333 states have (on average 1.3723723723723724) internal successors, (457), 337 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 457 transitions. [2021-10-13 07:58:50,435 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 457 transitions. Word has length 34 [2021-10-13 07:58:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:50,435 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 457 transitions. [2021-10-13 07:58:50,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,436 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 457 transitions. [2021-10-13 07:58:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 07:58:50,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:50,437 INFO L512 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] [2021-10-13 07:58:50,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 07:58:50,438 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:50,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1637038627, now seen corresponding path program 1 times [2021-10-13 07:58:50,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:50,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962672830] [2021-10-13 07:58:50,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:50,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:50,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:50,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962672830] [2021-10-13 07:58:50,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962672830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:50,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:50,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:58:50,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605227446] [2021-10-13 07:58:50,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:50,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:50,521 INFO L87 Difference]: Start difference. First operand 338 states and 457 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:50,629 INFO L93 Difference]: Finished difference Result 545 states and 741 transitions. [2021-10-13 07:58:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:58:50,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-13 07:58:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:50,634 INFO L225 Difference]: With dead ends: 545 [2021-10-13 07:58:50,634 INFO L226 Difference]: Without dead ends: 543 [2021-10-13 07:58:50,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:58:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-10-13 07:58:50,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 340. [2021-10-13 07:58:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 335 states have (on average 1.3701492537313433) internal successors, (459), 339 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 459 transitions. [2021-10-13 07:58:50,674 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 459 transitions. Word has length 34 [2021-10-13 07:58:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:50,674 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 459 transitions. [2021-10-13 07:58:50,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 459 transitions. [2021-10-13 07:58:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:58:50,675 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:50,675 INFO L512 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] [2021-10-13 07:58:50,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 07:58:50,676 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:50,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1357019276, now seen corresponding path program 1 times [2021-10-13 07:58:50,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:50,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822519961] [2021-10-13 07:58:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:50,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:50,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:50,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822519961] [2021-10-13 07:58:50,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822519961] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:50,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:50,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:50,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109596452] [2021-10-13 07:58:50,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:50,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:50,716 INFO L87 Difference]: Start difference. First operand 340 states and 459 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:50,808 INFO L93 Difference]: Finished difference Result 769 states and 1026 transitions. [2021-10-13 07:58:50,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:58:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 07:58:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:50,812 INFO L225 Difference]: With dead ends: 769 [2021-10-13 07:58:50,812 INFO L226 Difference]: Without dead ends: 456 [2021-10-13 07:58:50,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:58:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-10-13 07:58:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 299. [2021-10-13 07:58:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.3503401360544218) internal successors, (397), 298 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 397 transitions. [2021-10-13 07:58:50,851 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 397 transitions. Word has length 35 [2021-10-13 07:58:50,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:50,851 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 397 transitions. [2021-10-13 07:58:50,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 397 transitions. [2021-10-13 07:58:50,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:58:50,852 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:50,852 INFO L512 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] [2021-10-13 07:58:50,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 07:58:50,853 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:50,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:50,854 INFO L82 PathProgramCache]: Analyzing trace with hash 180949222, now seen corresponding path program 1 times [2021-10-13 07:58:50,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:50,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332767405] [2021-10-13 07:58:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:50,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:50,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:50,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332767405] [2021-10-13 07:58:50,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332767405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:50,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:50,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:58:50,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131780909] [2021-10-13 07:58:50,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:58:50,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:58:50,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:58:50,957 INFO L87 Difference]: Start difference. First operand 299 states and 397 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:51,347 INFO L93 Difference]: Finished difference Result 1408 states and 1849 transitions. [2021-10-13 07:58:51,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:58:51,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 07:58:51,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:51,354 INFO L225 Difference]: With dead ends: 1408 [2021-10-13 07:58:51,355 INFO L226 Difference]: Without dead ends: 1167 [2021-10-13 07:58:51,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:58:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2021-10-13 07:58:51,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 362. [2021-10-13 07:58:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.3221288515406162) internal successors, (472), 361 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 472 transitions. [2021-10-13 07:58:51,409 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 472 transitions. Word has length 35 [2021-10-13 07:58:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:51,410 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 472 transitions. [2021-10-13 07:58:51,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 472 transitions. [2021-10-13 07:58:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:58:51,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:51,411 INFO L512 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] [2021-10-13 07:58:51,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 07:58:51,411 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:51,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1241523803, now seen corresponding path program 1 times [2021-10-13 07:58:51,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:51,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147250039] [2021-10-13 07:58:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:51,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:51,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:51,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:51,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147250039] [2021-10-13 07:58:51,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147250039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:51,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:51,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:58:51,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90251047] [2021-10-13 07:58:51,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:58:51,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:51,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:58:51,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:51,522 INFO L87 Difference]: Start difference. First operand 362 states and 472 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:51,685 INFO L93 Difference]: Finished difference Result 769 states and 1033 transitions. [2021-10-13 07:58:51,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:58:51,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 07:58:51,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:51,689 INFO L225 Difference]: With dead ends: 769 [2021-10-13 07:58:51,690 INFO L226 Difference]: Without dead ends: 504 [2021-10-13 07:58:51,691 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.1ms TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:58:51,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-10-13 07:58:51,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 358. [2021-10-13 07:58:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 354 states have (on average 1.3135593220338984) internal successors, (465), 357 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 465 transitions. [2021-10-13 07:58:51,759 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 465 transitions. Word has length 35 [2021-10-13 07:58:51,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:51,759 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 465 transitions. [2021-10-13 07:58:51,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 465 transitions. [2021-10-13 07:58:51,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:58:51,760 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:51,760 INFO L512 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] [2021-10-13 07:58:51,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 07:58:51,761 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:51,762 INFO L82 PathProgramCache]: Analyzing trace with hash 394694385, now seen corresponding path program 1 times [2021-10-13 07:58:51,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:51,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435160577] [2021-10-13 07:58:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:51,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:51,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:51,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435160577] [2021-10-13 07:58:51,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435160577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:51,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:51,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:58:51,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638684313] [2021-10-13 07:58:51,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:51,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:51,822 INFO L87 Difference]: Start difference. First operand 358 states and 465 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:51,987 INFO L93 Difference]: Finished difference Result 1011 states and 1313 transitions. [2021-10-13 07:58:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:58:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-13 07:58:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:51,992 INFO L225 Difference]: With dead ends: 1011 [2021-10-13 07:58:51,993 INFO L226 Difference]: Without dead ends: 750 [2021-10-13 07:58:51,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:58:51,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-10-13 07:58:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 483. [2021-10-13 07:58:52,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 479 states have (on average 1.292275574112735) internal successors, (619), 482 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 619 transitions. [2021-10-13 07:58:52,063 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 619 transitions. Word has length 37 [2021-10-13 07:58:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:52,064 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 619 transitions. [2021-10-13 07:58:52,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 619 transitions. [2021-10-13 07:58:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:58:52,065 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:52,065 INFO L512 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] [2021-10-13 07:58:52,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 07:58:52,065 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash -421488638, now seen corresponding path program 1 times [2021-10-13 07:58:52,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:52,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001793286] [2021-10-13 07:58:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:52,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:52,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:52,172 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001793286] [2021-10-13 07:58:52,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001793286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:52,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:52,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:58:52,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209360457] [2021-10-13 07:58:52,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:58:52,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:52,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:58:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:52,174 INFO L87 Difference]: Start difference. First operand 483 states and 619 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:52,412 INFO L93 Difference]: Finished difference Result 1058 states and 1379 transitions. [2021-10-13 07:58:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:58:52,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-13 07:58:52,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:52,416 INFO L225 Difference]: With dead ends: 1058 [2021-10-13 07:58:52,417 INFO L226 Difference]: Without dead ends: 698 [2021-10-13 07:58:52,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 53.0ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:58:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2021-10-13 07:58:52,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 479. [2021-10-13 07:58:52,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 476 states have (on average 1.2857142857142858) internal successors, (612), 478 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 612 transitions. [2021-10-13 07:58:52,488 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 612 transitions. Word has length 40 [2021-10-13 07:58:52,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:52,489 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 612 transitions. [2021-10-13 07:58:52,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,489 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 612 transitions. [2021-10-13 07:58:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 07:58:52,490 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:52,490 INFO L512 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] [2021-10-13 07:58:52,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 07:58:52,490 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:52,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1665302547, now seen corresponding path program 1 times [2021-10-13 07:58:52,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:52,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002734602] [2021-10-13 07:58:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:52,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:52,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:52,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002734602] [2021-10-13 07:58:52,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002734602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:52,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:52,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:52,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159608660] [2021-10-13 07:58:52,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:58:52,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:52,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:58:52,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:58:52,529 INFO L87 Difference]: Start difference. First operand 479 states and 612 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:52,652 INFO L93 Difference]: Finished difference Result 1115 states and 1419 transitions. [2021-10-13 07:58:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:58:52,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-13 07:58:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:52,657 INFO L225 Difference]: With dead ends: 1115 [2021-10-13 07:58:52,658 INFO L226 Difference]: Without dead ends: 668 [2021-10-13 07:58:52,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:58:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2021-10-13 07:58:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 443. [2021-10-13 07:58:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 440 states have (on average 1.2727272727272727) internal successors, (560), 442 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 560 transitions. [2021-10-13 07:58:52,740 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 560 transitions. Word has length 40 [2021-10-13 07:58:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:52,740 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 560 transitions. [2021-10-13 07:58:52,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 560 transitions. [2021-10-13 07:58:52,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 07:58:52,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:52,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:52,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 07:58:52,742 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:52,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:52,742 INFO L82 PathProgramCache]: Analyzing trace with hash 554841858, now seen corresponding path program 1 times [2021-10-13 07:58:52,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:52,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312720778] [2021-10-13 07:58:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:52,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:52,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:52,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312720778] [2021-10-13 07:58:52,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312720778] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:52,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:52,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:58:52,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880605312] [2021-10-13 07:58:52,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:58:52,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:52,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:58:52,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:52,855 INFO L87 Difference]: Start difference. First operand 443 states and 560 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:53,185 INFO L93 Difference]: Finished difference Result 1326 states and 1702 transitions. [2021-10-13 07:58:53,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:58:53,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-13 07:58:53,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:53,192 INFO L225 Difference]: With dead ends: 1326 [2021-10-13 07:58:53,192 INFO L226 Difference]: Without dead ends: 970 [2021-10-13 07:58:53,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:58:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2021-10-13 07:58:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 439. [2021-10-13 07:58:53,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 437 states have (on average 1.265446224256293) internal successors, (553), 438 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 553 transitions. [2021-10-13 07:58:53,271 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 553 transitions. Word has length 48 [2021-10-13 07:58:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:53,272 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 553 transitions. [2021-10-13 07:58:53,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 553 transitions. [2021-10-13 07:58:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 07:58:53,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:53,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:53,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 07:58:53,274 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:53,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1746748034, now seen corresponding path program 1 times [2021-10-13 07:58:53,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:53,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247029262] [2021-10-13 07:58:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:53,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:53,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:53,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247029262] [2021-10-13 07:58:53,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247029262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:53,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:53,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:58:53,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336340547] [2021-10-13 07:58:53,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:58:53,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:53,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:58:53,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:53,346 INFO L87 Difference]: Start difference. First operand 439 states and 553 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:53,433 INFO L93 Difference]: Finished difference Result 786 states and 999 transitions. [2021-10-13 07:58:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:58:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 07:58:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:53,436 INFO L225 Difference]: With dead ends: 786 [2021-10-13 07:58:53,436 INFO L226 Difference]: Without dead ends: 434 [2021-10-13 07:58:53,437 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:58:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-10-13 07:58:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2021-10-13 07:58:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 433 states have (on average 1.2586605080831408) internal successors, (545), 433 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 545 transitions. [2021-10-13 07:58:53,508 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 545 transitions. Word has length 56 [2021-10-13 07:58:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:53,508 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 545 transitions. [2021-10-13 07:58:53,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:53,509 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 545 transitions. [2021-10-13 07:58:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 07:58:53,510 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:53,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:53,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 07:58:53,511 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:53,512 INFO L82 PathProgramCache]: Analyzing trace with hash 2116585721, now seen corresponding path program 1 times [2021-10-13 07:58:53,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:53,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526283756] [2021-10-13 07:58:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:53,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:53,679 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:53,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526283756] [2021-10-13 07:58:53,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526283756] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:53,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:53,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:58:53,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869230676] [2021-10-13 07:58:53,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:58:53,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:58:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:58:53,681 INFO L87 Difference]: Start difference. First operand 434 states and 545 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:54,083 INFO L93 Difference]: Finished difference Result 1105 states and 1390 transitions. [2021-10-13 07:58:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 07:58:54,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-13 07:58:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:54,089 INFO L225 Difference]: With dead ends: 1105 [2021-10-13 07:58:54,089 INFO L226 Difference]: Without dead ends: 758 [2021-10-13 07:58:54,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 125.9ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:58:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-10-13 07:58:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 444. [2021-10-13 07:58:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.2505643340857788) internal successors, (554), 443 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 554 transitions. [2021-10-13 07:58:54,179 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 554 transitions. Word has length 60 [2021-10-13 07:58:54,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:54,179 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 554 transitions. [2021-10-13 07:58:54,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:54,179 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 554 transitions. [2021-10-13 07:58:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-13 07:58:54,181 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:54,181 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:54,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 07:58:54,181 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:54,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1299988770, now seen corresponding path program 1 times [2021-10-13 07:58:54,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:54,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991089126] [2021-10-13 07:58:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:54,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:54,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:54,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991089126] [2021-10-13 07:58:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991089126] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:54,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-13 07:58:54,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362750900] [2021-10-13 07:58:54,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:58:54,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:58:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:58:54,490 INFO L87 Difference]: Start difference. First operand 444 states and 554 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:55,047 INFO L93 Difference]: Finished difference Result 1187 states and 1482 transitions. [2021-10-13 07:58:55,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 07:58:55,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-13 07:58:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:55,052 INFO L225 Difference]: With dead ends: 1187 [2021-10-13 07:58:55,053 INFO L226 Difference]: Without dead ends: 816 [2021-10-13 07:58:55,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 252.1ms TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:58:55,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-10-13 07:58:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 444. [2021-10-13 07:58:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.2437923250564333) internal successors, (551), 443 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 551 transitions. [2021-10-13 07:58:55,159 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 551 transitions. Word has length 64 [2021-10-13 07:58:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:55,159 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 551 transitions. [2021-10-13 07:58:55,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:55,159 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 551 transitions. [2021-10-13 07:58:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-13 07:58:55,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:55,161 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:55,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 07:58:55,161 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:55,162 INFO L82 PathProgramCache]: Analyzing trace with hash -28035197, now seen corresponding path program 1 times [2021-10-13 07:58:55,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:55,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628787664] [2021-10-13 07:58:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:55,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:55,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:55,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628787664] [2021-10-13 07:58:55,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628787664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:55,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:55,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:58:55,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418232312] [2021-10-13 07:58:55,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:58:55,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:55,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:58:55,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:58:55,313 INFO L87 Difference]: Start difference. First operand 444 states and 551 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:55,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:55,915 INFO L93 Difference]: Finished difference Result 1480 states and 1836 transitions. [2021-10-13 07:58:55,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 07:58:55,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-13 07:58:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:55,922 INFO L225 Difference]: With dead ends: 1480 [2021-10-13 07:58:55,922 INFO L226 Difference]: Without dead ends: 1109 [2021-10-13 07:58:55,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 131.1ms TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-10-13 07:58:55,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2021-10-13 07:58:56,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 464. [2021-10-13 07:58:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.2267818574514038) internal successors, (568), 463 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 568 transitions. [2021-10-13 07:58:56,023 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 568 transitions. Word has length 68 [2021-10-13 07:58:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:56,023 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 568 transitions. [2021-10-13 07:58:56,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:56,024 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 568 transitions. [2021-10-13 07:58:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-13 07:58:56,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:56,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:56,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 07:58:56,026 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:56,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:56,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1416300307, now seen corresponding path program 1 times [2021-10-13 07:58:56,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:56,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404105025] [2021-10-13 07:58:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:56,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:56,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:56,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404105025] [2021-10-13 07:58:56,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404105025] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:56,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:56,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:58:56,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119668906] [2021-10-13 07:58:56,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:58:56,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:58:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:58:56,168 INFO L87 Difference]: Start difference. First operand 464 states and 568 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:56,650 INFO L93 Difference]: Finished difference Result 1384 states and 1717 transitions. [2021-10-13 07:58:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:58:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-10-13 07:58:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:56,657 INFO L225 Difference]: With dead ends: 1384 [2021-10-13 07:58:56,657 INFO L226 Difference]: Without dead ends: 993 [2021-10-13 07:58:56,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 70.8ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:58:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-10-13 07:58:56,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 464. [2021-10-13 07:58:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 1.2095032397408207) internal successors, (560), 463 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 560 transitions. [2021-10-13 07:58:56,753 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 560 transitions. Word has length 71 [2021-10-13 07:58:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:56,753 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 560 transitions. [2021-10-13 07:58:56,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 560 transitions. [2021-10-13 07:58:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-13 07:58:56,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:56,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:56,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 07:58:56,755 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:56,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash 961986670, now seen corresponding path program 1 times [2021-10-13 07:58:56,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:56,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025819949] [2021-10-13 07:58:56,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:56,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:57,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:57,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025819949] [2021-10-13 07:58:57,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025819949] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:58:57,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:58:57,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-13 07:58:57,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616840937] [2021-10-13 07:58:57,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 07:58:57,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:58:57,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 07:58:57,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:58:57,410 INFO L87 Difference]: Start difference. First operand 464 states and 560 transitions. Second operand has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:58,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:58,922 INFO L93 Difference]: Finished difference Result 1420 states and 1771 transitions. [2021-10-13 07:58:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-13 07:58:58,923 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-10-13 07:58:58,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:58,928 INFO L225 Difference]: With dead ends: 1420 [2021-10-13 07:58:58,928 INFO L226 Difference]: Without dead ends: 1043 [2021-10-13 07:58:58,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 991.2ms TimeCoverageRelationStatistics Valid=316, Invalid=1166, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 07:58:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2021-10-13 07:58:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 491. [2021-10-13 07:58:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.2040816326530612) internal successors, (590), 490 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:59,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 590 transitions. [2021-10-13 07:58:59,037 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 590 transitions. Word has length 71 [2021-10-13 07:58:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:59,038 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 590 transitions. [2021-10-13 07:58:59,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 18 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:58:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 590 transitions. [2021-10-13 07:58:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-13 07:58:59,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:59,040 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:59,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 07:58:59,040 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:58:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:59,041 INFO L82 PathProgramCache]: Analyzing trace with hash -555113578, now seen corresponding path program 1 times [2021-10-13 07:58:59,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:58:59,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476455069] [2021-10-13 07:58:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:59,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:58:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:58:59,196 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:58:59,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476455069] [2021-10-13 07:58:59,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476455069] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:58:59,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778914252] [2021-10-13 07:58:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:59,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:58:59,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:58:59,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:58:59,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:58:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:59,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 07:58:59,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:00,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:00,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778914252] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:00,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1379629983] [2021-10-13 07:59:00,990 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2021-10-13 07:59:00,990 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:59:00,997 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:59:01,002 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:59:01,003 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:59:02,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,755 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:59:02,756 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:59:02,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:59:02,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:59:02,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-10-13 07:59:02,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,846 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,847 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,848 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,848 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,849 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,864 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,867 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,869 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,869 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,869 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,884 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,885 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,886 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,898 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,900 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,902 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,915 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,917 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,918 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:02,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,935 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:02,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:02,936 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:02,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:59:02,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:59:02,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:59:03,064 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 07:59:03,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 07:59:03,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:59:03,069 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:59:03,070 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,083 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,085 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,098 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,100 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,113 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,115 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,126 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,126 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,128 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,140 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:59:03,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,151 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,151 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:59:03,151 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:59:03,199 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:59:03,210 INFO L180 QuantifierPusher]: treesize reduction 48, result has 84.7 percent of original size [2021-10-13 07:59:03,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 266 [2021-10-13 07:59:03,218 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:59:03,219 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 1 variables, input treesize:4051, output treesize:266 [2021-10-13 07:59:03,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:03,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-13 07:59:03,445 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_13| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:59:03,449 INFO L168 Benchmark]: Toolchain (without parser) took 19734.77 ms. Allocated memory was 94.4 MB in the beginning and 392.2 MB in the end (delta: 297.8 MB). Free memory was 51.5 MB in the beginning and 253.7 MB in the end (delta: -202.2 MB). Peak memory consumption was 97.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,449 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:59:03,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.24 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 65.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,450 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 61.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,450 INFO L168 Benchmark]: Boogie Preprocessor took 76.15 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 57.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,450 INFO L168 Benchmark]: RCFGBuilder took 2220.77 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 66.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,451 INFO L168 Benchmark]: TraceAbstraction took 16947.55 ms. Allocated memory was 113.2 MB in the beginning and 392.2 MB in the end (delta: 278.9 MB). Free memory was 66.2 MB in the beginning and 253.7 MB in the end (delta: -187.5 MB). Peak memory consumption was 91.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:59:03,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 69.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.24 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 65.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 61.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.15 ms. Allocated memory is still 94.4 MB. Free memory was 61.0 MB in the beginning and 57.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2220.77 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 66.2 MB in the end (delta: -8.8 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16947.55 ms. Allocated memory was 113.2 MB in the beginning and 392.2 MB in the end (delta: 278.9 MB). Free memory was 66.2 MB in the beginning and 253.7 MB in the end (delta: -187.5 MB). Peak memory consumption was 91.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_13| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_13|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:59:03,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:59:06,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:59:06,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:59:06,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:59:06,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:59:06,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:59:06,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:59:06,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:59:06,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:59:06,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:59:06,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:59:06,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:59:06,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:59:06,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:59:06,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:59:06,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:59:06,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:59:06,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:59:06,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:59:06,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:59:06,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:59:06,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:59:06,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:59:06,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:59:06,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:59:06,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:59:06,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:59:06,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:59:06,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:59:06,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:59:06,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:59:06,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:59:06,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:59:06,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:59:06,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:59:06,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:59:06,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:59:06,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:59:06,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:59:06,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:59:06,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:59:06,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:59:06,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:59:06,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:59:06,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:59:06,176 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:59:06,176 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:59:06,176 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:59:06,176 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:59:06,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:59:06,177 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:59:06,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:59:06,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:59:06,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:59:06,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:59:06,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:59:06,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:59:06,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:59:06,179 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:59:06,179 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:59:06,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:59:06,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:59:06,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:59:06,180 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:59:06,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:59:06,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:59:06,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:59:06,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:59:06,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:59:06,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:59:06,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:59:06,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:59:06,182 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:59:06,183 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:59:06,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:59:06,183 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:59:06,183 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:59:06,183 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc86cc3add356b600fcf92e092d72b9013e4f56a [2021-10-13 07:59:06,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:59:06,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:59:06,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:59:06,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:59:06,546 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:59:06,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:59:06,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/3109534c4/98de742d2b4c45cc89689e7105477da0/FLAG605fdf7f7 [2021-10-13 07:59:07,195 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:59:07,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:59:07,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/3109534c4/98de742d2b4c45cc89689e7105477da0/FLAG605fdf7f7 [2021-10-13 07:59:07,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/data/3109534c4/98de742d2b4c45cc89689e7105477da0 [2021-10-13 07:59:07,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:59:07,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:59:07,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:59:07,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:59:07,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:59:07,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:07" (1/1) ... [2021-10-13 07:59:07,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd367b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:07, skipping insertion in model container [2021-10-13 07:59:07,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:07" (1/1) ... [2021-10-13 07:59:07,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:59:07,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:59:07,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c[14522,14535] [2021-10-13 07:59:07,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:59:07,945 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:59:08,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c[14522,14535] [2021-10-13 07:59:08,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:59:08,111 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:59:08,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08 WrapperNode [2021-10-13 07:59:08,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:59:08,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:59:08,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:59:08,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:59:08,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:59:08,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:59:08,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:59:08,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:59:08,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:59:08,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:59:08,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:59:08,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:59:08,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (1/1) ... [2021-10-13 07:59:08,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:59:08,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:59:08,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:59:08,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:59:08,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:59:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:59:08,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:59:08,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:59:09,631 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:59:09,631 INFO L299 CfgBuilder]: Removed 123 assume(true) statements. [2021-10-13 07:59:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:09 BoogieIcfgContainer [2021-10-13 07:59:09,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:59:09,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:59:09,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:59:09,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:59:09,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:59:07" (1/3) ... [2021-10-13 07:59:09,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc53fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:09, skipping insertion in model container [2021-10-13 07:59:09,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:08" (2/3) ... [2021-10-13 07:59:09,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc53fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:09, skipping insertion in model container [2021-10-13 07:59:09,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:09" (3/3) ... [2021-10-13 07:59:09,649 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.UNBOUNDED.pals.c [2021-10-13 07:59:09,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:59:09,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-10-13 07:59:09,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:59:09,706 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:59:09,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-10-13 07:59:09,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 294 states, 270 states have (on average 1.7037037037037037) internal successors, (460), 293 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:59:09,736 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:09,736 INFO L512 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] [2021-10-13 07:59:09,737 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:09,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:09,743 INFO L82 PathProgramCache]: Analyzing trace with hash 349506240, now seen corresponding path program 1 times [2021-10-13 07:59:09,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:09,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693477655] [2021-10-13 07:59:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:09,757 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:09,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:09,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:09,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:59:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:09,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:59:09,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:10,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:10,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:10,135 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:10,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693477655] [2021-10-13 07:59:10,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693477655] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:10,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:10,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:59:10,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821322450] [2021-10-13 07:59:10,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:59:10,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:59:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:59:10,168 INFO L87 Difference]: Start difference. First operand has 294 states, 270 states have (on average 1.7037037037037037) internal successors, (460), 293 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:10,228 INFO L93 Difference]: Finished difference Result 568 states and 888 transitions. [2021-10-13 07:59:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:59:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:59:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:10,253 INFO L225 Difference]: With dead ends: 568 [2021-10-13 07:59:10,253 INFO L226 Difference]: Without dead ends: 290 [2021-10-13 07:59:10,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:59:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-13 07:59:10,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-10-13 07:59:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 267 states have (on average 1.5880149812734083) internal successors, (424), 289 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 424 transitions. [2021-10-13 07:59:10,331 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 424 transitions. Word has length 33 [2021-10-13 07:59:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:10,331 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 424 transitions. [2021-10-13 07:59:10,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 424 transitions. [2021-10-13 07:59:10,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:59:10,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:10,336 INFO L512 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] [2021-10-13 07:59:10,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:10,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:10,549 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:10,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1047215368, now seen corresponding path program 1 times [2021-10-13 07:59:10,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:10,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618944017] [2021-10-13 07:59:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:10,558 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:10,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:10,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:10,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:59:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:10,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:10,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:10,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:10,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:10,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618944017] [2021-10-13 07:59:10,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618944017] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:10,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:10,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:59:10,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904266437] [2021-10-13 07:59:10,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:59:10,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:10,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:59:10,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:59:10,949 INFO L87 Difference]: Start difference. First operand 290 states and 424 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:11,028 INFO L93 Difference]: Finished difference Result 566 states and 822 transitions. [2021-10-13 07:59:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:59:11,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:59:11,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:11,032 INFO L225 Difference]: With dead ends: 566 [2021-10-13 07:59:11,033 INFO L226 Difference]: Without dead ends: 290 [2021-10-13 07:59:11,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:59:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-13 07:59:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-10-13 07:59:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 267 states have (on average 1.5430711610486891) internal successors, (412), 289 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 412 transitions. [2021-10-13 07:59:11,074 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 412 transitions. Word has length 33 [2021-10-13 07:59:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:11,077 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 412 transitions. [2021-10-13 07:59:11,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 412 transitions. [2021-10-13 07:59:11,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-13 07:59:11,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:11,081 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:11,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 07:59:11,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:11,292 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:11,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:11,293 INFO L82 PathProgramCache]: Analyzing trace with hash -600938825, now seen corresponding path program 1 times [2021-10-13 07:59:11,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:11,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710475493] [2021-10-13 07:59:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:11,294 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:11,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:11,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:11,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:59:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:11,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:11,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:11,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:11,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:11,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:11,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710475493] [2021-10-13 07:59:11,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710475493] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:11,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:11,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:11,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536626758] [2021-10-13 07:59:11,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:11,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:11,730 INFO L87 Difference]: Start difference. First operand 290 states and 412 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:11,787 INFO L93 Difference]: Finished difference Result 642 states and 921 transitions. [2021-10-13 07:59:11,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:11,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-13 07:59:11,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:11,791 INFO L225 Difference]: With dead ends: 642 [2021-10-13 07:59:11,791 INFO L226 Difference]: Without dead ends: 369 [2021-10-13 07:59:11,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:11,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-10-13 07:59:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 266. [2021-10-13 07:59:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 247 states have (on average 1.5222672064777327) internal successors, (376), 265 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 376 transitions. [2021-10-13 07:59:11,820 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 376 transitions. Word has length 44 [2021-10-13 07:59:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:11,822 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 376 transitions. [2021-10-13 07:59:11,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:11,824 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 376 transitions. [2021-10-13 07:59:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 07:59:11,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:11,829 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:11,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:12,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:12,042 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:12,043 INFO L82 PathProgramCache]: Analyzing trace with hash -777659854, now seen corresponding path program 1 times [2021-10-13 07:59:12,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:12,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015505284] [2021-10-13 07:59:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:12,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:12,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:12,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:12,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:59:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:12,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:59:12,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:12,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:12,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:12,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015505284] [2021-10-13 07:59:12,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015505284] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:12,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:12,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:59:12,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003361972] [2021-10-13 07:59:12,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:59:12,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:12,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:59:12,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:59:12,781 INFO L87 Difference]: Start difference. First operand 266 states and 376 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:13,269 INFO L93 Difference]: Finished difference Result 1058 states and 1517 transitions. [2021-10-13 07:59:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:59:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-13 07:59:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:13,277 INFO L225 Difference]: With dead ends: 1058 [2021-10-13 07:59:13,277 INFO L226 Difference]: Without dead ends: 809 [2021-10-13 07:59:13,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 93.2ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-10-13 07:59:13,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 323. [2021-10-13 07:59:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 304 states have (on average 1.506578947368421) internal successors, (458), 322 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:13,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 458 transitions. [2021-10-13 07:59:13,320 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 458 transitions. Word has length 53 [2021-10-13 07:59:13,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:13,321 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 458 transitions. [2021-10-13 07:59:13,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 458 transitions. [2021-10-13 07:59:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-13 07:59:13,328 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:13,328 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:13,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:13,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:13,549 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:13,550 INFO L82 PathProgramCache]: Analyzing trace with hash -2135089546, now seen corresponding path program 1 times [2021-10-13 07:59:13,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:13,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869583198] [2021-10-13 07:59:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:13,552 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:13,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:13,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:59:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:13,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:59:13,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:13,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:14,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:14,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869583198] [2021-10-13 07:59:14,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869583198] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:14,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:14,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:59:14,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313989753] [2021-10-13 07:59:14,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:59:14,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:14,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:59:14,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:59:14,174 INFO L87 Difference]: Start difference. First operand 323 states and 458 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:14,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:14,599 INFO L93 Difference]: Finished difference Result 1058 states and 1515 transitions. [2021-10-13 07:59:14,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:59:14,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-13 07:59:14,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:14,605 INFO L225 Difference]: With dead ends: 1058 [2021-10-13 07:59:14,605 INFO L226 Difference]: Without dead ends: 809 [2021-10-13 07:59:14,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 84.5ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2021-10-13 07:59:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 323. [2021-10-13 07:59:14,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 304 states have (on average 1.5032894736842106) internal successors, (457), 322 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 457 transitions. [2021-10-13 07:59:14,629 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 457 transitions. Word has length 54 [2021-10-13 07:59:14,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:14,630 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 457 transitions. [2021-10-13 07:59:14,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 457 transitions. [2021-10-13 07:59:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 07:59:14,631 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:14,632 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:14,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:14,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:14,844 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:14,844 INFO L82 PathProgramCache]: Analyzing trace with hash 412338309, now seen corresponding path program 1 times [2021-10-13 07:59:14,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:14,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630639209] [2021-10-13 07:59:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:14,846 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:14,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:14,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:14,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:59:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:15,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:59:15,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:15,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:15,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:15,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:15,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630639209] [2021-10-13 07:59:15,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630639209] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:15,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:15,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:15,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931794416] [2021-10-13 07:59:15,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:15,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:15,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:15,422 INFO L87 Difference]: Start difference. First operand 323 states and 457 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:15,470 INFO L93 Difference]: Finished difference Result 827 states and 1180 transitions. [2021-10-13 07:59:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 07:59:15,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:15,476 INFO L225 Difference]: With dead ends: 827 [2021-10-13 07:59:15,477 INFO L226 Difference]: Without dead ends: 578 [2021-10-13 07:59:15,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-10-13 07:59:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 385. [2021-10-13 07:59:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 366 states have (on average 1.489071038251366) internal successors, (545), 384 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 545 transitions. [2021-10-13 07:59:15,507 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 545 transitions. Word has length 55 [2021-10-13 07:59:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:15,508 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 545 transitions. [2021-10-13 07:59:15,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:15,509 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 545 transitions. [2021-10-13 07:59:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 07:59:15,509 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:15,510 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:15,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:15,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:15,722 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:15,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash 392369909, now seen corresponding path program 1 times [2021-10-13 07:59:15,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:15,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346261816] [2021-10-13 07:59:15,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:15,723 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:15,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:15,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:15,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:59:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:16,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:59:16,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:16,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:16,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:16,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346261816] [2021-10-13 07:59:16,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346261816] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:16,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:16,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:16,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102393590] [2021-10-13 07:59:16,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:16,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:16,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:16,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:16,275 INFO L87 Difference]: Start difference. First operand 385 states and 545 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:16,341 INFO L93 Difference]: Finished difference Result 917 states and 1305 transitions. [2021-10-13 07:59:16,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:16,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 07:59:16,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:16,346 INFO L225 Difference]: With dead ends: 917 [2021-10-13 07:59:16,346 INFO L226 Difference]: Without dead ends: 635 [2021-10-13 07:59:16,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2021-10-13 07:59:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 418. [2021-10-13 07:59:16,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 399 states have (on average 1.4711779448621554) internal successors, (587), 417 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 587 transitions. [2021-10-13 07:59:16,378 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 587 transitions. Word has length 56 [2021-10-13 07:59:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:16,379 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 587 transitions. [2021-10-13 07:59:16,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 587 transitions. [2021-10-13 07:59:16,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 07:59:16,380 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:16,380 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:16,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:16,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:16,593 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:16,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1072428279, now seen corresponding path program 1 times [2021-10-13 07:59:16,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:16,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314699848] [2021-10-13 07:59:16,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:16,594 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:16,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:16,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:59:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:16,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:59:16,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:17,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:17,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:17,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [314699848] [2021-10-13 07:59:17,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [314699848] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:17,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:17,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:59:17,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460665498] [2021-10-13 07:59:17,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:59:17,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:17,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:59:17,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:59:17,173 INFO L87 Difference]: Start difference. First operand 418 states and 587 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:17,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:17,213 INFO L93 Difference]: Finished difference Result 723 states and 1026 transitions. [2021-10-13 07:59:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:59:17,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 07:59:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:17,217 INFO L225 Difference]: With dead ends: 723 [2021-10-13 07:59:17,217 INFO L226 Difference]: Without dead ends: 389 [2021-10-13 07:59:17,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:59:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-10-13 07:59:17,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2021-10-13 07:59:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 370 states have (on average 1.4864864864864864) internal successors, (550), 388 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 550 transitions. [2021-10-13 07:59:17,243 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 550 transitions. Word has length 56 [2021-10-13 07:59:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:17,243 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 550 transitions. [2021-10-13 07:59:17,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 550 transitions. [2021-10-13 07:59:17,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-13 07:59:17,244 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:17,244 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:17,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:17,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:17,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:17,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:17,458 INFO L82 PathProgramCache]: Analyzing trace with hash 315847341, now seen corresponding path program 1 times [2021-10-13 07:59:17,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:17,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977819564] [2021-10-13 07:59:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:17,459 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:17,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:17,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:59:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:17,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:17,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:17,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:17,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:17,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977819564] [2021-10-13 07:59:17,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977819564] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:17,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:17,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:17,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111683642] [2021-10-13 07:59:17,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:17,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:17,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:17,991 INFO L87 Difference]: Start difference. First operand 389 states and 550 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:18,044 INFO L93 Difference]: Finished difference Result 824 states and 1177 transitions. [2021-10-13 07:59:18,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:18,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-10-13 07:59:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:18,048 INFO L225 Difference]: With dead ends: 824 [2021-10-13 07:59:18,048 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 07:59:18,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 07:59:18,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 384. [2021-10-13 07:59:18,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 366 states have (on average 1.4808743169398908) internal successors, (542), 383 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 542 transitions. [2021-10-13 07:59:18,077 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 542 transitions. Word has length 56 [2021-10-13 07:59:18,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:18,077 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 542 transitions. [2021-10-13 07:59:18,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 542 transitions. [2021-10-13 07:59:18,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 07:59:18,078 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:18,078 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:18,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:18,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:18,291 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:18,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:18,291 INFO L82 PathProgramCache]: Analyzing trace with hash -2107582331, now seen corresponding path program 1 times [2021-10-13 07:59:18,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:18,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881937343] [2021-10-13 07:59:18,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:18,292 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:18,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:18,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:18,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:59:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:18,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:18,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:18,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:18,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:18,859 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:18,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881937343] [2021-10-13 07:59:18,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881937343] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:18,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:18,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:18,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821241970] [2021-10-13 07:59:18,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:18,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:18,861 INFO L87 Difference]: Start difference. First operand 384 states and 542 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:18,943 INFO L93 Difference]: Finished difference Result 806 states and 1157 transitions. [2021-10-13 07:59:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:18,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-13 07:59:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:18,949 INFO L225 Difference]: With dead ends: 806 [2021-10-13 07:59:18,949 INFO L226 Difference]: Without dead ends: 525 [2021-10-13 07:59:18,950 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:18,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-10-13 07:59:18,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 364. [2021-10-13 07:59:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 350 states have (on average 1.457142857142857) internal successors, (510), 363 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 510 transitions. [2021-10-13 07:59:18,978 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 510 transitions. Word has length 60 [2021-10-13 07:59:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:18,979 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 510 transitions. [2021-10-13 07:59:18,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 510 transitions. [2021-10-13 07:59:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-10-13 07:59:18,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:18,980 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:19,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:19,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:19,194 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:19,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:19,195 INFO L82 PathProgramCache]: Analyzing trace with hash -22697507, now seen corresponding path program 1 times [2021-10-13 07:59:19,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:19,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663857120] [2021-10-13 07:59:19,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:19,196 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:19,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:19,197 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:19,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:59:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:19,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:19,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:19,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:19,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:19,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:19,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663857120] [2021-10-13 07:59:19,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663857120] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:19,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:19,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:19,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142799297] [2021-10-13 07:59:19,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:19,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:19,850 INFO L87 Difference]: Start difference. First operand 364 states and 510 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:19,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:19,911 INFO L93 Difference]: Finished difference Result 745 states and 1055 transitions. [2021-10-13 07:59:19,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:19,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-10-13 07:59:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:19,915 INFO L225 Difference]: With dead ends: 745 [2021-10-13 07:59:19,915 INFO L226 Difference]: Without dead ends: 484 [2021-10-13 07:59:19,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:19,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-10-13 07:59:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 352. [2021-10-13 07:59:19,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 340 states have (on average 1.4470588235294117) internal successors, (492), 351 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:19,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 492 transitions. [2021-10-13 07:59:19,948 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 492 transitions. Word has length 64 [2021-10-13 07:59:19,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:19,949 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 492 transitions. [2021-10-13 07:59:19,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 492 transitions. [2021-10-13 07:59:19,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-13 07:59:19,956 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:19,956 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:19,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:20,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:20,168 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:20,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:20,169 INFO L82 PathProgramCache]: Analyzing trace with hash -417972715, now seen corresponding path program 1 times [2021-10-13 07:59:20,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:20,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603037912] [2021-10-13 07:59:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:20,169 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:20,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:20,170 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:20,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:59:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:20,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:20,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:20,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:21,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:21,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:21,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603037912] [2021-10-13 07:59:21,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603037912] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:21,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:21,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 07:59:21,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280703482] [2021-10-13 07:59:21,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:21,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:21,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:21,005 INFO L87 Difference]: Start difference. First operand 352 states and 492 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:21,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:21,248 INFO L93 Difference]: Finished difference Result 1308 states and 1843 transitions. [2021-10-13 07:59:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:21,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-10-13 07:59:21,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:21,255 INFO L225 Difference]: With dead ends: 1308 [2021-10-13 07:59:21,255 INFO L226 Difference]: Without dead ends: 1059 [2021-10-13 07:59:21,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 68.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:59:21,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2021-10-13 07:59:21,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 369. [2021-10-13 07:59:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 357 states have (on average 1.4285714285714286) internal successors, (510), 368 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:21,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 510 transitions. [2021-10-13 07:59:21,295 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 510 transitions. Word has length 65 [2021-10-13 07:59:21,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:21,295 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 510 transitions. [2021-10-13 07:59:21,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 510 transitions. [2021-10-13 07:59:21,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-13 07:59:21,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:21,297 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:21,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:21,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:21,510 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:21,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1586633556, now seen corresponding path program 1 times [2021-10-13 07:59:21,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:21,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34765690] [2021-10-13 07:59:21,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:21,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:21,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:21,511 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:21,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:59:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:21,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:21,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:22,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:22,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:22,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:22,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34765690] [2021-10-13 07:59:22,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34765690] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:22,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:22,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:22,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119702835] [2021-10-13 07:59:22,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:22,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:22,237 INFO L87 Difference]: Start difference. First operand 369 states and 510 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:22,333 INFO L93 Difference]: Finished difference Result 769 states and 1085 transitions. [2021-10-13 07:59:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-10-13 07:59:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:22,337 INFO L225 Difference]: With dead ends: 769 [2021-10-13 07:59:22,338 INFO L226 Difference]: Without dead ends: 520 [2021-10-13 07:59:22,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2021-10-13 07:59:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 349. [2021-10-13 07:59:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 341 states have (on average 1.401759530791789) internal successors, (478), 348 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 478 transitions. [2021-10-13 07:59:22,376 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 478 transitions. Word has length 67 [2021-10-13 07:59:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:22,376 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 478 transitions. [2021-10-13 07:59:22,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:22,377 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 478 transitions. [2021-10-13 07:59:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-13 07:59:22,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:22,378 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:22,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:22,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:22,591 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:22,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:22,592 INFO L82 PathProgramCache]: Analyzing trace with hash 132586540, now seen corresponding path program 1 times [2021-10-13 07:59:22,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:22,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000539123] [2021-10-13 07:59:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:22,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:22,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:22,593 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:22,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 07:59:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:23,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:23,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:23,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:23,345 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:23,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000539123] [2021-10-13 07:59:23,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000539123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:23,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:23,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:23,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87641186] [2021-10-13 07:59:23,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:23,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:23,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:23,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:23,347 INFO L87 Difference]: Start difference. First operand 349 states and 478 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:23,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:23,424 INFO L93 Difference]: Finished difference Result 726 states and 1009 transitions. [2021-10-13 07:59:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:23,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-10-13 07:59:23,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:23,428 INFO L225 Difference]: With dead ends: 726 [2021-10-13 07:59:23,428 INFO L226 Difference]: Without dead ends: 497 [2021-10-13 07:59:23,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:23,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-10-13 07:59:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 337. [2021-10-13 07:59:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 331 states have (on average 1.3897280966767371) internal successors, (460), 336 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 460 transitions. [2021-10-13 07:59:23,464 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 460 transitions. Word has length 71 [2021-10-13 07:59:23,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:23,464 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 460 transitions. [2021-10-13 07:59:23,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:23,465 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 460 transitions. [2021-10-13 07:59:23,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-13 07:59:23,466 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:23,466 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:23,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:23,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:23,682 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:23,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1972545423, now seen corresponding path program 1 times [2021-10-13 07:59:23,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:23,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848223143] [2021-10-13 07:59:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:23,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:23,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:23,685 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:23,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:59:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:24,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:59:24,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:24,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:24,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:24,617 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:24,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848223143] [2021-10-13 07:59:24,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848223143] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:24,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:24,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-13 07:59:24,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43886469] [2021-10-13 07:59:24,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:59:24,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:24,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:59:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:59:24,623 INFO L87 Difference]: Start difference. First operand 337 states and 460 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:24,970 INFO L93 Difference]: Finished difference Result 1397 states and 1928 transitions. [2021-10-13 07:59:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:59:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-10-13 07:59:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:24,977 INFO L225 Difference]: With dead ends: 1397 [2021-10-13 07:59:24,978 INFO L226 Difference]: Without dead ends: 1180 [2021-10-13 07:59:24,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 67.3ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2021-10-13 07:59:25,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 365. [2021-10-13 07:59:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 359 states have (on average 1.3704735376044568) internal successors, (492), 364 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:25,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 492 transitions. [2021-10-13 07:59:25,022 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 492 transitions. Word has length 74 [2021-10-13 07:59:25,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:25,023 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 492 transitions. [2021-10-13 07:59:25,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 492 transitions. [2021-10-13 07:59:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-13 07:59:25,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:25,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:25,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:25,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:25,238 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:25,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:25,239 INFO L82 PathProgramCache]: Analyzing trace with hash -303657044, now seen corresponding path program 1 times [2021-10-13 07:59:25,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:25,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323914562] [2021-10-13 07:59:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:25,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:25,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:25,241 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:25,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 07:59:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:25,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:25,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:25,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:26,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:26,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323914562] [2021-10-13 07:59:26,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323914562] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:26,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:26,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 07:59:26,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104019306] [2021-10-13 07:59:26,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:26,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:26,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:26,173 INFO L87 Difference]: Start difference. First operand 365 states and 492 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:26,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:26,412 INFO L93 Difference]: Finished difference Result 1061 states and 1458 transitions. [2021-10-13 07:59:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:26,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-10-13 07:59:26,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:26,418 INFO L225 Difference]: With dead ends: 1061 [2021-10-13 07:59:26,418 INFO L226 Difference]: Without dead ends: 823 [2021-10-13 07:59:26,419 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 54.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:59:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-10-13 07:59:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 373. [2021-10-13 07:59:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 367 states have (on average 1.3623978201634876) internal successors, (500), 372 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:26,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 500 transitions. [2021-10-13 07:59:26,459 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 500 transitions. Word has length 74 [2021-10-13 07:59:26,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:26,460 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 500 transitions. [2021-10-13 07:59:26,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:26,460 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 500 transitions. [2021-10-13 07:59:26,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-13 07:59:26,461 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:26,461 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:26,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:26,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:26,675 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:26,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:26,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1045793593, now seen corresponding path program 1 times [2021-10-13 07:59:26,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:26,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145503371] [2021-10-13 07:59:26,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:26,676 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:26,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:26,676 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:26,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 07:59:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:27,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:59:27,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:27,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:27,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:27,764 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:27,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145503371] [2021-10-13 07:59:27,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145503371] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:27,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:27,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-13 07:59:27,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575970215] [2021-10-13 07:59:27,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:59:27,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:59:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:59:27,767 INFO L87 Difference]: Start difference. First operand 373 states and 500 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:28,127 INFO L93 Difference]: Finished difference Result 1283 states and 1757 transitions. [2021-10-13 07:59:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:59:28,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-13 07:59:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:28,134 INFO L225 Difference]: With dead ends: 1283 [2021-10-13 07:59:28,134 INFO L226 Difference]: Without dead ends: 1045 [2021-10-13 07:59:28,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:28,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2021-10-13 07:59:28,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 398. [2021-10-13 07:59:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 392 states have (on average 1.344387755102041) internal successors, (527), 397 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 527 transitions. [2021-10-13 07:59:28,181 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 527 transitions. Word has length 75 [2021-10-13 07:59:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:28,181 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 527 transitions. [2021-10-13 07:59:28,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:28,182 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 527 transitions. [2021-10-13 07:59:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-13 07:59:28,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:28,183 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:28,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:28,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:28,396 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:28,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:28,397 INFO L82 PathProgramCache]: Analyzing trace with hash -533178723, now seen corresponding path program 1 times [2021-10-13 07:59:28,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:28,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784632452] [2021-10-13 07:59:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:28,398 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:28,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:28,399 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:28,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 07:59:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:29,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:29,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:29,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:29,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:29,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:29,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784632452] [2021-10-13 07:59:29,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784632452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:29,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:29,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:59:29,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612619482] [2021-10-13 07:59:29,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:59:29,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:59:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:59:29,414 INFO L87 Difference]: Start difference. First operand 398 states and 527 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:29,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:29,614 INFO L93 Difference]: Finished difference Result 1065 states and 1421 transitions. [2021-10-13 07:59:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:59:29,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-13 07:59:29,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:29,620 INFO L225 Difference]: With dead ends: 1065 [2021-10-13 07:59:29,620 INFO L226 Difference]: Without dead ends: 813 [2021-10-13 07:59:29,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 146 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:59:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2021-10-13 07:59:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 620. [2021-10-13 07:59:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 614 states have (on average 1.3143322475570032) internal successors, (807), 619 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:29,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 807 transitions. [2021-10-13 07:59:29,695 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 807 transitions. Word has length 75 [2021-10-13 07:59:29,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:29,696 INFO L470 AbstractCegarLoop]: Abstraction has 620 states and 807 transitions. [2021-10-13 07:59:29,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 807 transitions. [2021-10-13 07:59:29,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-13 07:59:29,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:29,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:29,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:29,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:29,912 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1664992290, now seen corresponding path program 1 times [2021-10-13 07:59:29,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:29,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456516380] [2021-10-13 07:59:29,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:29,914 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:29,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:29,916 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:29,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 07:59:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:30,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:59:30,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:30,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:30,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:30,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456516380] [2021-10-13 07:59:30,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456516380] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:30,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:30,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:59:30,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283373466] [2021-10-13 07:59:30,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:59:30,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:59:30,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:59:30,948 INFO L87 Difference]: Start difference. First operand 620 states and 807 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:31,356 INFO L93 Difference]: Finished difference Result 1484 states and 1938 transitions. [2021-10-13 07:59:31,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:59:31,357 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-10-13 07:59:31,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:31,362 INFO L225 Difference]: With dead ends: 1484 [2021-10-13 07:59:31,363 INFO L226 Difference]: Without dead ends: 921 [2021-10-13 07:59:31,364 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 73.6ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:59:31,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-10-13 07:59:31,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 543. [2021-10-13 07:59:31,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 537 states have (on average 1.318435754189944) internal successors, (708), 542 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 708 transitions. [2021-10-13 07:59:31,442 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 708 transitions. Word has length 77 [2021-10-13 07:59:31,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:31,442 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 708 transitions. [2021-10-13 07:59:31,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 708 transitions. [2021-10-13 07:59:31,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-13 07:59:31,444 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:31,444 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:31,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-13 07:59:31,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:31,659 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:31,660 INFO L82 PathProgramCache]: Analyzing trace with hash 529404806, now seen corresponding path program 1 times [2021-10-13 07:59:31,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:31,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623037107] [2021-10-13 07:59:31,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:31,661 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:31,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:31,662 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:31,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 07:59:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:32,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:59:32,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:32,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:32,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:33,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:33,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623037107] [2021-10-13 07:59:33,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623037107] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:33,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:33,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-10-13 07:59:33,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679249428] [2021-10-13 07:59:33,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:59:33,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:59:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:59:33,036 INFO L87 Difference]: Start difference. First operand 543 states and 708 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:33,412 INFO L93 Difference]: Finished difference Result 1662 states and 2260 transitions. [2021-10-13 07:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-10-13 07:59:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:33,420 INFO L225 Difference]: With dead ends: 1662 [2021-10-13 07:59:33,420 INFO L226 Difference]: Without dead ends: 1257 [2021-10-13 07:59:33,422 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 75.0ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:33,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2021-10-13 07:59:33,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 516. [2021-10-13 07:59:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 510 states have (on average 1.3176470588235294) internal successors, (672), 515 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 672 transitions. [2021-10-13 07:59:33,485 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 672 transitions. Word has length 77 [2021-10-13 07:59:33,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:33,486 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 672 transitions. [2021-10-13 07:59:33,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:33,486 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 672 transitions. [2021-10-13 07:59:33,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-13 07:59:33,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:33,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:33,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:33,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:33,701 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:33,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:33,701 INFO L82 PathProgramCache]: Analyzing trace with hash 542872594, now seen corresponding path program 1 times [2021-10-13 07:59:33,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:33,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588531315] [2021-10-13 07:59:33,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:33,702 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:33,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:33,704 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:33,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 07:59:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:34,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:34,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:34,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:34,856 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:34,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588531315] [2021-10-13 07:59:34,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588531315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:34,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:34,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:59:34,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735646931] [2021-10-13 07:59:34,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:59:34,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:34,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:59:34,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:59:34,858 INFO L87 Difference]: Start difference. First operand 516 states and 672 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:35,075 INFO L93 Difference]: Finished difference Result 1427 states and 1896 transitions. [2021-10-13 07:59:35,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:59:35,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-10-13 07:59:35,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:35,088 INFO L225 Difference]: With dead ends: 1427 [2021-10-13 07:59:35,088 INFO L226 Difference]: Without dead ends: 1049 [2021-10-13 07:59:35,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:59:35,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2021-10-13 07:59:35,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 714. [2021-10-13 07:59:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 708 states have (on average 1.2980225988700564) internal successors, (919), 713 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 919 transitions. [2021-10-13 07:59:35,176 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 919 transitions. Word has length 77 [2021-10-13 07:59:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:35,177 INFO L470 AbstractCegarLoop]: Abstraction has 714 states and 919 transitions. [2021-10-13 07:59:35,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 919 transitions. [2021-10-13 07:59:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-13 07:59:35,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:35,179 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:35,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:35,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:35,392 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:35,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:35,393 INFO L82 PathProgramCache]: Analyzing trace with hash -284584036, now seen corresponding path program 1 times [2021-10-13 07:59:35,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:35,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953105655] [2021-10-13 07:59:35,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:35,393 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:35,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:35,394 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:35,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 07:59:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:36,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:36,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:36,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:36,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:36,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:36,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953105655] [2021-10-13 07:59:36,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953105655] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:36,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:36,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 07:59:36,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31128779] [2021-10-13 07:59:36,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:36,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:36,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:36,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:36,578 INFO L87 Difference]: Start difference. First operand 714 states and 919 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:36,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:36,890 INFO L93 Difference]: Finished difference Result 1970 states and 2613 transitions. [2021-10-13 07:59:36,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:36,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-10-13 07:59:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:36,899 INFO L225 Difference]: With dead ends: 1970 [2021-10-13 07:59:36,899 INFO L226 Difference]: Without dead ends: 1447 [2021-10-13 07:59:36,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:59:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2021-10-13 07:59:37,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 738. [2021-10-13 07:59:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 732 states have (on average 1.2923497267759563) internal successors, (946), 737 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 946 transitions. [2021-10-13 07:59:37,012 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 946 transitions. Word has length 78 [2021-10-13 07:59:37,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:37,013 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 946 transitions. [2021-10-13 07:59:37,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:37,013 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 946 transitions. [2021-10-13 07:59:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-10-13 07:59:37,015 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:37,015 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:37,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:37,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:37,230 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:37,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1325659995, now seen corresponding path program 1 times [2021-10-13 07:59:37,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:37,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30651711] [2021-10-13 07:59:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:37,231 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:37,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:37,232 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:37,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 07:59:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:37,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:37,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:38,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:38,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:38,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30651711] [2021-10-13 07:59:38,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30651711] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:38,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:38,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 07:59:38,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857353399] [2021-10-13 07:59:38,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:38,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:38,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:38,418 INFO L87 Difference]: Start difference. First operand 738 states and 946 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:38,686 INFO L93 Difference]: Finished difference Result 1898 states and 2525 transitions. [2021-10-13 07:59:38,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:38,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-10-13 07:59:38,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:38,694 INFO L225 Difference]: With dead ends: 1898 [2021-10-13 07:59:38,695 INFO L226 Difference]: Without dead ends: 1375 [2021-10-13 07:59:38,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 43.7ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:59:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2021-10-13 07:59:38,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 748. [2021-10-13 07:59:38,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 742 states have (on average 1.2884097035040432) internal successors, (956), 747 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 956 transitions. [2021-10-13 07:59:38,794 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 956 transitions. Word has length 79 [2021-10-13 07:59:38,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:38,795 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 956 transitions. [2021-10-13 07:59:38,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:38,795 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 956 transitions. [2021-10-13 07:59:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-13 07:59:38,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:38,801 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:38,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:39,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:39,019 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:39,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1593609901, now seen corresponding path program 1 times [2021-10-13 07:59:39,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:39,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783257292] [2021-10-13 07:59:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:39,020 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:39,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:39,021 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-13 07:59:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:39,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:59:39,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:40,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:40,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:40,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783257292] [2021-10-13 07:59:40,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783257292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:40,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:40,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:59:40,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230439190] [2021-10-13 07:59:40,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:59:40,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:40,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:59:40,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:59:40,286 INFO L87 Difference]: Start difference. First operand 748 states and 956 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:40,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:40,637 INFO L93 Difference]: Finished difference Result 1794 states and 2325 transitions. [2021-10-13 07:59:40,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:59:40,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-13 07:59:40,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:40,644 INFO L225 Difference]: With dead ends: 1794 [2021-10-13 07:59:40,644 INFO L226 Difference]: Without dead ends: 1125 [2021-10-13 07:59:40,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 86.9ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:59:40,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-10-13 07:59:40,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 692. [2021-10-13 07:59:40,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 686 states have (on average 1.282798833819242) internal successors, (880), 691 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 880 transitions. [2021-10-13 07:59:40,743 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 880 transitions. Word has length 80 [2021-10-13 07:59:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:40,743 INFO L470 AbstractCegarLoop]: Abstraction has 692 states and 880 transitions. [2021-10-13 07:59:40,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 880 transitions. [2021-10-13 07:59:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 07:59:40,744 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:40,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:40,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:40,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:40,945 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:40,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash -385203667, now seen corresponding path program 1 times [2021-10-13 07:59:40,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:40,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156128116] [2021-10-13 07:59:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:40,946 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:40,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:40,947 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:40,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-13 07:59:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:41,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:41,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:42,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:42,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:42,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:42,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:42,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156128116] [2021-10-13 07:59:42,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156128116] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:42,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:42,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 07:59:42,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382921510] [2021-10-13 07:59:42,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:42,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:42,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:42,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:42,272 INFO L87 Difference]: Start difference. First operand 692 states and 880 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:42,537 INFO L93 Difference]: Finished difference Result 2103 states and 2806 transitions. [2021-10-13 07:59:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:42,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-13 07:59:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:42,547 INFO L225 Difference]: With dead ends: 2103 [2021-10-13 07:59:42,547 INFO L226 Difference]: Without dead ends: 1580 [2021-10-13 07:59:42,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:59:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2021-10-13 07:59:42,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 686. [2021-10-13 07:59:42,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 680 states have (on average 1.285294117647059) internal successors, (874), 685 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:42,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 874 transitions. [2021-10-13 07:59:42,677 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 874 transitions. Word has length 83 [2021-10-13 07:59:42,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:42,678 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 874 transitions. [2021-10-13 07:59:42,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:42,679 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 874 transitions. [2021-10-13 07:59:42,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 07:59:42,680 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:42,681 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:42,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:42,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:42,896 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:42,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:42,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1261369472, now seen corresponding path program 1 times [2021-10-13 07:59:42,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:42,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391132197] [2021-10-13 07:59:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:42,898 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:42,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:42,901 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:42,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-13 07:59:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:43,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:43,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:44,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:44,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:44,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:44,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391132197] [2021-10-13 07:59:44,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391132197] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:44,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:44,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:59:44,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313329602] [2021-10-13 07:59:44,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:59:44,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:44,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:59:44,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:44,223 INFO L87 Difference]: Start difference. First operand 686 states and 874 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:44,433 INFO L93 Difference]: Finished difference Result 1334 states and 1751 transitions. [2021-10-13 07:59:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:59:44,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-13 07:59:44,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:44,439 INFO L225 Difference]: With dead ends: 1334 [2021-10-13 07:59:44,439 INFO L226 Difference]: Without dead ends: 811 [2021-10-13 07:59:44,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:59:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-10-13 07:59:44,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 682. [2021-10-13 07:59:44,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 677 states have (on average 1.2806499261447564) internal successors, (867), 681 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:44,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 867 transitions. [2021-10-13 07:59:44,574 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 867 transitions. Word has length 83 [2021-10-13 07:59:44,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:44,575 INFO L470 AbstractCegarLoop]: Abstraction has 682 states and 867 transitions. [2021-10-13 07:59:44,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:44,575 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 867 transitions. [2021-10-13 07:59:44,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-13 07:59:44,576 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:44,577 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:44,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:44,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:44,794 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:44,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:44,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1708909977, now seen corresponding path program 1 times [2021-10-13 07:59:44,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:44,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239445368] [2021-10-13 07:59:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:44,795 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:44,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:44,796 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:44,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-13 07:59:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:45,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:45,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:46,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:46,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:46,337 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:46,337 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239445368] [2021-10-13 07:59:46,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239445368] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:46,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:46,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:59:46,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87660554] [2021-10-13 07:59:46,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:46,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:46,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:46,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:59:46,341 INFO L87 Difference]: Start difference. First operand 682 states and 867 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:46,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:46,647 INFO L93 Difference]: Finished difference Result 1224 states and 1595 transitions. [2021-10-13 07:59:46,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:59:46,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-10-13 07:59:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:46,656 INFO L225 Difference]: With dead ends: 1224 [2021-10-13 07:59:46,656 INFO L226 Difference]: Without dead ends: 1222 [2021-10-13 07:59:46,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.9ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:59:46,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-10-13 07:59:46,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 684. [2021-10-13 07:59:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 679 states have (on average 1.279823269513991) internal successors, (869), 683 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 869 transitions. [2021-10-13 07:59:46,762 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 869 transitions. Word has length 87 [2021-10-13 07:59:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:46,762 INFO L470 AbstractCegarLoop]: Abstraction has 684 states and 869 transitions. [2021-10-13 07:59:46,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 869 transitions. [2021-10-13 07:59:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-13 07:59:46,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:46,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:46,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:46,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:46,964 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:46,965 INFO L82 PathProgramCache]: Analyzing trace with hash -596332183, now seen corresponding path program 1 times [2021-10-13 07:59:46,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:46,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632449862] [2021-10-13 07:59:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:46,966 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:46,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:46,968 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:46,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-13 07:59:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:48,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:59:48,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:48,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:48,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:48,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632449862] [2021-10-13 07:59:48,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632449862] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:48,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:59:48,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 07:59:48,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678818268] [2021-10-13 07:59:48,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:59:48,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:59:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:59:48,789 INFO L87 Difference]: Start difference. First operand 684 states and 869 transitions. Second operand has 10 states, 10 states have (on average 16.3) internal successors, (163), 10 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:49,129 INFO L93 Difference]: Finished difference Result 1592 states and 2125 transitions. [2021-10-13 07:59:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:59:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.3) internal successors, (163), 10 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-10-13 07:59:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:49,135 INFO L225 Difference]: With dead ends: 1592 [2021-10-13 07:59:49,135 INFO L226 Difference]: Without dead ends: 1071 [2021-10-13 07:59:49,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 104.3ms TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:59:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-10-13 07:59:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 690. [2021-10-13 07:59:49,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 685 states have (on average 1.2773722627737227) internal successors, (875), 689 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:49,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 875 transitions. [2021-10-13 07:59:49,243 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 875 transitions. Word has length 88 [2021-10-13 07:59:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:49,244 INFO L470 AbstractCegarLoop]: Abstraction has 690 states and 875 transitions. [2021-10-13 07:59:49,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.3) internal successors, (163), 10 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 875 transitions. [2021-10-13 07:59:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-13 07:59:49,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:49,248 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:49,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:49,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:49,461 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 07:59:49,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:49,462 INFO L82 PathProgramCache]: Analyzing trace with hash 240000536, now seen corresponding path program 1 times [2021-10-13 07:59:49,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:49,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334552620] [2021-10-13 07:59:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:49,463 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:49,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:49,464 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:49,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-13 07:59:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:50,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:59:50,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:51,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:52,158 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:52,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334552620] [2021-10-13 07:59:52,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334552620] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:52,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1789895964] [2021-10-13 07:59:52,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:52,159 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:59:52,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:59:52,164 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:59:52,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2021-10-13 07:59:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:53,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:59:53,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:54,522 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:54,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:54,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1789895964] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:54,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587515167] [2021-10-13 07:59:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:54,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:59:54,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:59:54,997 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:59:55,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 07:59:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:56,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:59:56,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:57,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:57,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587515167] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:57,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:59:57,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 17 [2021-10-13 07:59:57,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146251621] [2021-10-13 07:59:57,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 07:59:57,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:57,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 07:59:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:59:57,646 INFO L87 Difference]: Start difference. First operand 690 states and 875 transitions. Second operand has 18 states, 18 states have (on average 12.833333333333334) internal successors, (231), 17 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:59:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:59,989 INFO L93 Difference]: Finished difference Result 2543 states and 3316 transitions. [2021-10-13 07:59:59,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 07:59:59,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.833333333333334) internal successors, (231), 17 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-10-13 07:59:59,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:00,000 INFO L225 Difference]: With dead ends: 2543 [2021-10-13 08:00:00,000 INFO L226 Difference]: Without dead ends: 2022 [2021-10-13 08:00:00,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 794 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 915 ImplicationChecksByTransitivity, 1198.9ms TimeCoverageRelationStatistics Valid=709, Invalid=2831, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 08:00:00,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2021-10-13 08:00:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 1012. [2021-10-13 08:00:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1007 states have (on average 1.2800397219463753) internal successors, (1289), 1011 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1289 transitions. [2021-10-13 08:00:00,166 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1289 transitions. Word has length 137 [2021-10-13 08:00:00,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:00,167 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1289 transitions. [2021-10-13 08:00:00,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.833333333333334) internal successors, (231), 17 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1289 transitions. [2021-10-13 08:00:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-13 08:00:00,170 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:00,170 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:00,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:00,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:00,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:00,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:00:00,772 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 08:00:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:00,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1679932332, now seen corresponding path program 1 times [2021-10-13 08:00:00,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:00,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127715897] [2021-10-13 08:00:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:00,773 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:00,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:00,774 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:00,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-13 08:00:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:02,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:00:02,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:03,174 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:03,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:03,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:03,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127715897] [2021-10-13 08:00:03,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1127715897] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:03,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2074692313] [2021-10-13 08:00:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:03,737 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:00:03,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:00:03,738 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:00:03,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2021-10-13 08:00:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:05,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:00:05,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:06,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:06,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2074692313] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:06,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149502302] [2021-10-13 08:00:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:06,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:00:06,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:00:06,701 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:00:06,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 08:00:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:08,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:00:08,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:09,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:09,479 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:09,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149502302] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:09,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:00:09,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 17 [2021-10-13 08:00:09,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789821149] [2021-10-13 08:00:09,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 08:00:09,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:09,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 08:00:09,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-10-13 08:00:09,482 INFO L87 Difference]: Start difference. First operand 1012 states and 1289 transitions. Second operand has 18 states, 18 states have (on average 13.333333333333334) internal successors, (240), 17 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:12,240 INFO L93 Difference]: Finished difference Result 3871 states and 5067 transitions. [2021-10-13 08:00:12,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-13 08:00:12,241 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.333333333333334) internal successors, (240), 17 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-10-13 08:00:12,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:12,256 INFO L225 Difference]: With dead ends: 3871 [2021-10-13 08:00:12,256 INFO L226 Difference]: Without dead ends: 3097 [2021-10-13 08:00:12,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 800 SyntacticMatches, 6 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1119.8ms TimeCoverageRelationStatistics Valid=757, Invalid=3275, Unknown=0, NotChecked=0, Total=4032 [2021-10-13 08:00:12,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-10-13 08:00:12,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 1532. [2021-10-13 08:00:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1527 states have (on average 1.286182056319581) internal successors, (1964), 1531 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1964 transitions. [2021-10-13 08:00:12,671 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1964 transitions. Word has length 138 [2021-10-13 08:00:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:12,671 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 1964 transitions. [2021-10-13 08:00:12,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.333333333333334) internal successors, (240), 17 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1964 transitions. [2021-10-13 08:00:12,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-10-13 08:00:12,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:12,677 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:12,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:12,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-10-13 08:00:13,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2021-10-13 08:00:13,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:00:13,291 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 08:00:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:13,291 INFO L82 PathProgramCache]: Analyzing trace with hash -682912333, now seen corresponding path program 1 times [2021-10-13 08:00:13,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:13,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692876166] [2021-10-13 08:00:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:13,292 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:13,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:13,294 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:13,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-13 08:00:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:15,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:00:15,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:15,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:16,044 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:16,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692876166] [2021-10-13 08:00:16,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692876166] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:16,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [499841624] [2021-10-13 08:00:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:16,044 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:00:16,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:00:16,046 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:00:16,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2021-10-13 08:00:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:18,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:00:18,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:18,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:18,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [499841624] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:18,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173330485] [2021-10-13 08:00:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:18,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:00:18,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:00:18,905 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:00:18,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-13 08:00:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:20,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:00:20,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:21,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:21,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:21,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173330485] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:21,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:00:21,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 11 [2021-10-13 08:00:21,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004709673] [2021-10-13 08:00:21,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 08:00:21,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:21,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 08:00:21,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-13 08:00:21,742 INFO L87 Difference]: Start difference. First operand 1532 states and 1964 transitions. Second operand has 12 states, 12 states have (on average 21.083333333333332) internal successors, (253), 11 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:23,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:23,226 INFO L93 Difference]: Finished difference Result 5752 states and 7631 transitions. [2021-10-13 08:00:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 08:00:23,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.083333333333332) internal successors, (253), 11 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-10-13 08:00:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:23,237 INFO L225 Difference]: With dead ends: 5752 [2021-10-13 08:00:23,237 INFO L226 Difference]: Without dead ends: 4552 [2021-10-13 08:00:23,240 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 812 SyntacticMatches, 6 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 314.6ms TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2021-10-13 08:00:23,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2021-10-13 08:00:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 1824. [2021-10-13 08:00:23,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1819 states have (on average 1.3007146783947223) internal successors, (2366), 1823 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:23,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2366 transitions. [2021-10-13 08:00:23,539 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2366 transitions. Word has length 139 [2021-10-13 08:00:23,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:23,539 INFO L470 AbstractCegarLoop]: Abstraction has 1824 states and 2366 transitions. [2021-10-13 08:00:23,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.083333333333332) internal successors, (253), 11 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2366 transitions. [2021-10-13 08:00:23,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-13 08:00:23,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:23,544 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:23,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:23,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:23,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2021-10-13 08:00:24,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:24,150 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 08:00:24,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:24,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1062504675, now seen corresponding path program 1 times [2021-10-13 08:00:24,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:24,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585925123] [2021-10-13 08:00:24,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:24,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:24,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:24,152 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-13 08:00:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:26,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 08:00:26,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:26,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:27,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:27,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585925123] [2021-10-13 08:00:27,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585925123] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:27,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1723058439] [2021-10-13 08:00:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:27,209 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:00:27,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:00:27,210 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:00:27,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2021-10-13 08:00:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:29,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:00:29,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-13 08:00:29,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-10-13 08:00:30,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1723058439] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:00:30,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 08:00:30,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7, 7] total 16 [2021-10-13 08:00:30,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986755019] [2021-10-13 08:00:30,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:00:30,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:30,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:00:30,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:00:30,209 INFO L87 Difference]: Start difference. First operand 1824 states and 2366 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:31,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:31,765 INFO L93 Difference]: Finished difference Result 8952 states and 11973 transitions. [2021-10-13 08:00:31,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 08:00:31,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-10-13 08:00:31,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:31,780 INFO L225 Difference]: With dead ends: 8952 [2021-10-13 08:00:31,780 INFO L226 Difference]: Without dead ends: 7460 [2021-10-13 08:00:31,783 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 547 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 246.0ms TimeCoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2021-10-13 08:00:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7460 states. [2021-10-13 08:00:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7460 to 2243. [2021-10-13 08:00:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2238 states have (on average 1.274798927613941) internal successors, (2853), 2242 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2853 transitions. [2021-10-13 08:00:32,224 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2853 transitions. Word has length 140 [2021-10-13 08:00:32,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:32,224 INFO L470 AbstractCegarLoop]: Abstraction has 2243 states and 2853 transitions. [2021-10-13 08:00:32,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2853 transitions. [2021-10-13 08:00:32,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-13 08:00:32,229 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:32,230 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:32,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:32,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:32,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:32,639 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 08:00:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:32,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1918099731, now seen corresponding path program 1 times [2021-10-13 08:00:32,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:32,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817640957] [2021-10-13 08:00:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:32,641 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:32,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:32,641 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:32,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-13 08:00:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:34,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:00:34,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 08:00:35,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:35,438 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-13 08:00:35,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:00:35,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817640957] [2021-10-13 08:00:35,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817640957] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:00:35,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:00:35,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-13 08:00:35,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385325047] [2021-10-13 08:00:35,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:00:35,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:35,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:00:35,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:00:35,440 INFO L87 Difference]: Start difference. First operand 2243 states and 2853 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:00:36,366 INFO L93 Difference]: Finished difference Result 6401 states and 8319 transitions. [2021-10-13 08:00:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 08:00:36,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-10-13 08:00:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:00:36,376 INFO L225 Difference]: With dead ends: 6401 [2021-10-13 08:00:36,376 INFO L226 Difference]: Without dead ends: 4470 [2021-10-13 08:00:36,380 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 53.9ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-13 08:00:36,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2021-10-13 08:00:36,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 2243. [2021-10-13 08:00:36,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2243 states, 2238 states have (on average 1.27390527256479) internal successors, (2851), 2242 states have internal predecessors, (2851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:36,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2243 states to 2243 states and 2851 transitions. [2021-10-13 08:00:36,870 INFO L78 Accepts]: Start accepts. Automaton has 2243 states and 2851 transitions. Word has length 140 [2021-10-13 08:00:36,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:00:36,872 INFO L470 AbstractCegarLoop]: Abstraction has 2243 states and 2851 transitions. [2021-10-13 08:00:36,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:00:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states and 2851 transitions. [2021-10-13 08:00:36,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-13 08:00:36,876 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:00:36,877 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:00:36,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (41)] Ended with exit code 0 [2021-10-13 08:00:37,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:37,081 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-13 08:00:37,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:00:37,081 INFO L82 PathProgramCache]: Analyzing trace with hash 458292102, now seen corresponding path program 1 times [2021-10-13 08:00:37,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:00:37,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676992759] [2021-10-13 08:00:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:37,082 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:00:37,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:00:37,083 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:00:37,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-13 08:00:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:00:39,366 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 08:00:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 08:00:40,158 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 08:00:40,159 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 08:00:40,160 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,162 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,163 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,164 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:00:40,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-13 08:00:40,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:00:40,371 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:00:40,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:00:40 BoogieIcfgContainer [2021-10-13 08:00:40,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:00:40,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:00:40,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:00:40,614 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:00:40,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:09" (3/4) ... [2021-10-13 08:00:40,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 08:00:40,833 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:00:40,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:00:40,835 INFO L168 Benchmark]: Toolchain (without parser) took 93321.91 ms. Allocated memory was 65.0 MB in the beginning and 597.7 MB in the end (delta: 532.7 MB). Free memory was 43.7 MB in the beginning and 212.0 MB in the end (delta: -168.4 MB). Peak memory consumption was 365.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,836 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 65.0 MB. Free memory is still 44.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:00:40,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.77 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 42.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.13 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 37.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,838 INFO L168 Benchmark]: Boogie Preprocessor took 121.68 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 34.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,838 INFO L168 Benchmark]: RCFGBuilder took 1297.33 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 34.1 MB in the beginning and 61.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,838 INFO L168 Benchmark]: TraceAbstraction took 90972.14 ms. Allocated memory was 92.3 MB in the beginning and 597.7 MB in the end (delta: 505.4 MB). Free memory was 60.6 MB in the beginning and 258.2 MB in the end (delta: -197.6 MB). Peak memory consumption was 308.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,839 INFO L168 Benchmark]: Witness Printer took 219.76 ms. Allocated memory is still 597.7 MB. Free memory was 257.1 MB in the beginning and 212.0 MB in the end (delta: 45.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:00:40,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 65.0 MB. Free memory is still 44.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.77 ms. Allocated memory is still 65.0 MB. Free memory was 43.6 MB in the beginning and 42.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.13 ms. Allocated memory is still 65.0 MB. Free memory was 42.4 MB in the beginning and 37.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 121.68 ms. Allocated memory is still 65.0 MB. Free memory was 37.9 MB in the beginning and 34.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1297.33 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 34.1 MB in the beginning and 61.0 MB in the end (delta: -26.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 90972.14 ms. Allocated memory was 92.3 MB in the beginning and 597.7 MB in the end (delta: 505.4 MB). Free memory was 60.6 MB in the beginning and 258.2 MB in the end (delta: -197.6 MB). Peak memory consumption was 308.1 MB. Max. memory is 16.1 GB. * Witness Printer took 219.76 ms. Allocated memory is still 597.7 MB. Free memory was 257.1 MB in the beginning and 212.0 MB in the end (delta: 45.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 610]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] msg_t nomsg = (msg_t )-1; [L25] port_t cs1 ; [L26] int8_t cs1_old ; [L27] int8_t cs1_new ; [L28] port_t cs2 ; [L29] int8_t cs2_old ; [L30] int8_t cs2_new ; [L31] port_t s1s2 ; [L32] int8_t s1s2_old ; [L33] int8_t s1s2_new ; [L34] port_t s1s1 ; [L35] int8_t s1s1_old ; [L36] int8_t s1s1_new ; [L37] port_t s2s1 ; [L38] int8_t s2s1_old ; [L39] int8_t s2s1_new ; [L40] port_t s2s2 ; [L41] int8_t s2s2_old ; [L42] int8_t s2s2_new ; [L43] port_t s1p ; [L44] int8_t s1p_old ; [L45] int8_t s1p_new ; [L46] port_t s2p ; [L47] int8_t s2p_old ; [L48] int8_t s2p_new ; [L51] _Bool side1Failed ; [L52] _Bool side2Failed ; [L53] msg_t side1_written ; [L54] msg_t side2_written ; [L60] static _Bool side1Failed_History_0 ; [L61] static _Bool side1Failed_History_1 ; [L62] static _Bool side1Failed_History_2 ; [L63] static _Bool side2Failed_History_0 ; [L64] static _Bool side2Failed_History_1 ; [L65] static _Bool side2Failed_History_2 ; [L66] static int8_t active_side_History_0 ; [L67] static int8_t active_side_History_1 ; [L68] static int8_t active_side_History_2 ; [L69] static msg_t manual_selection_History_0 ; [L70] static msg_t manual_selection_History_1 ; [L71] static msg_t manual_selection_History_2 ; VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=0, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=0, 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] [L534] int c1 ; [L535] int i2 ; [L538] c1 = 0 [L539] side1Failed = __VERIFIER_nondet_bool() [L540] side2Failed = __VERIFIER_nondet_bool() [L541] side1_written = __VERIFIER_nondet_char() [L542] side2_written = __VERIFIER_nondet_char() [L543] side1Failed_History_0 = __VERIFIER_nondet_bool() [L544] side1Failed_History_1 = __VERIFIER_nondet_bool() [L545] side1Failed_History_2 = __VERIFIER_nondet_bool() [L546] side2Failed_History_0 = __VERIFIER_nondet_bool() [L547] side2Failed_History_1 = __VERIFIER_nondet_bool() [L548] side2Failed_History_2 = __VERIFIER_nondet_bool() [L549] active_side_History_0 = __VERIFIER_nondet_char() [L550] active_side_History_1 = __VERIFIER_nondet_char() [L551] active_side_History_2 = __VERIFIER_nondet_char() [L552] manual_selection_History_0 = __VERIFIER_nondet_char() [L553] manual_selection_History_1 = __VERIFIER_nondet_char() [L554] manual_selection_History_2 = __VERIFIER_nondet_char() [L197] COND FALSE !((int )side1Failed_History_0 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L200] COND FALSE !((int )side2Failed_History_0 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L203] COND FALSE !((int )active_side_History_0 != -2) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L206] COND FALSE !((int )manual_selection_History_0 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L209] COND FALSE !((int )side1Failed_History_1 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L212] COND FALSE !((int )side2Failed_History_1 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L215] COND FALSE !((int )active_side_History_1 != -2) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L218] COND FALSE !((int )manual_selection_History_1 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L221] COND FALSE !((int )side1Failed_History_2 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L224] COND FALSE !((int )side2Failed_History_2 != 0) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L227] COND FALSE !((int )active_side_History_2 != -2) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L230] COND FALSE !((int )manual_selection_History_2 != 0) [L233] return (1); VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L555] i2 = init() [L58] COND FALSE !(!cond) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=0, cs2=0, cs2_new=0, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=0, s1s1=0, s1s1_new=0, s1s1_old=0, s1s2=0, s1s2_new=0, s1s2_old=0, s2p=0, s2p_new=0, s2p_old=0, s2s1=0, s2s1_new=0, s2s1_old=0, s2s2=0, s2s2_new=0, s2s2_old=0, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L557] cs1_old = nomsg [L558] cs1_new = nomsg [L559] cs2_old = nomsg [L560] cs2_new = nomsg [L561] s1s2_old = nomsg [L562] s1s2_new = nomsg [L563] s1s1_old = nomsg [L564] s1s1_new = nomsg [L565] s2s1_old = nomsg [L566] s2s1_new = nomsg [L567] s2s2_old = nomsg [L568] s2s2_new = nomsg [L569] s1p_old = nomsg [L570] s1p_new = nomsg [L571] s2p_old = nomsg [L572] s2p_new = nomsg [L573] i2 = 0 VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=255, cs2=0, cs2_new=255, cs2_old=255, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L574] COND TRUE 1 [L251] msg_t manual_selection ; [L252] char tmp ; [L255] tmp = __VERIFIER_nondet_char() [L256] manual_selection = tmp [L167] manual_selection_History_2 = manual_selection_History_1 [L168] manual_selection_History_1 = manual_selection_History_0 [L169] manual_selection_History_0 = val VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=255, cs2=0, cs2_new=255, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L258] EXPR manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=255, cs2=0, cs2_new=255, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L258] cs1_new = manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L259] EXPR manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=255, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L259] cs2_new = manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L260] manual_selection = (msg_t )0 VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=4, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L266] int8_t side1 ; [L267] int8_t side2 ; [L268] msg_t manual_selection ; [L269] int8_t next_state ; [L272] side1 = nomsg [L273] side2 = nomsg [L274] manual_selection = (msg_t )0 [L275] side1Failed = __VERIFIER_nondet_bool() [L77] side1Failed_History_2 = side1Failed_History_1 [L78] side1Failed_History_1 = side1Failed_History_0 [L79] side1Failed_History_0 = val VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L277] COND TRUE \read(side1Failed) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L278] EXPR nomsg != nomsg && s1s1_new == nomsg ? nomsg : s1s1_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L278] s1s1_new = nomsg != nomsg && s1s1_new == nomsg ? nomsg : s1s1_new [L279] EXPR nomsg != nomsg && s1s2_new == nomsg ? nomsg : s1s2_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L279] s1s2_new = nomsg != nomsg && s1s2_new == nomsg ? nomsg : s1s2_new [L280] EXPR nomsg != nomsg && s1p_new == nomsg ? nomsg : s1p_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=6, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L280] s1p_new = nomsg != nomsg && s1p_new == nomsg ? nomsg : s1p_new [L281] side1_written = nomsg VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=5, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L323] int8_t side1 ; [L324] int8_t side2 ; [L325] msg_t manual_selection ; [L326] int8_t next_state ; [L329] side1 = nomsg [L330] side2 = nomsg [L331] manual_selection = (msg_t )0 [L332] side2Failed = __VERIFIER_nondet_bool() [L107] side2Failed_History_2 = side2Failed_History_1 [L108] side2Failed_History_1 = side2Failed_History_0 [L109] side2Failed_History_0 = val VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L334] COND FALSE !(\read(side2Failed)) [L341] side1 = s1s2_old [L342] s1s2_old = nomsg [L343] side2 = s2s2_old [L344] s2s2_old = nomsg [L345] manual_selection = cs2_old [L346] cs2_old = nomsg VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L347] COND TRUE (int )side1 == (int )side2 [L348] next_state = (int8_t )0 VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L371] EXPR next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L371] s2s1_new = next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L372] EXPR next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L372] s2s2_new = next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L373] EXPR next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=3, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L373] s2p_new = next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L374] side2_written = next_state VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L380] int8_t active_side ; [L381] int8_t tmp ; [L382] int8_t side1 ; [L383] int8_t side2 ; [L148] COND TRUE (int )index == 0 [L149] return (active_side_History_0); VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L386] tmp = read_active_side_history((unsigned char)0) [L387] active_side = tmp [L388] side1 = nomsg [L389] side2 = nomsg [L390] side1 = s1p_old [L391] s1p_old = nomsg [L392] side2 = s2p_old [L393] s2p_old = nomsg VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L394] COND FALSE !((int )side1 == 1) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L397] COND FALSE !((int )side2 == 1) VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L400] COND FALSE !((int )side1 == 0) [L407] active_side = (int8_t )0 VAL [active_side_History_0=254, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L137] active_side_History_2 = active_side_History_1 [L138] active_side_History_1 = active_side_History_0 [L139] active_side_History_0 = val VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=128, cs1_old=255, cs2=0, cs2_new=128, cs2_old=255, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=0, s2p_old=255, s2s1=0, s2s1_new=0, s2s1_old=255, s2s2=0, s2s2_new=0, s2s2_old=255, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L580] cs1_old = cs1_new [L581] cs1_new = nomsg [L582] cs2_old = cs2_new [L583] cs2_new = nomsg [L584] s1s2_old = s1s2_new [L585] s1s2_new = nomsg [L586] s1s1_old = s1s1_new [L587] s1s1_new = nomsg [L588] s2s1_old = s2s1_new [L589] s2s1_new = nomsg [L590] s2s2_old = s2s2_new [L591] s2s2_new = nomsg [L592] s1p_old = s1p_new [L593] s1p_new = nomsg [L594] s2p_old = s2p_new [L595] s2p_new = nomsg [L415] int tmp ; [L416] msg_t tmp___0 ; [L417] _Bool tmp___1 ; [L418] _Bool tmp___2 ; [L419] _Bool tmp___3 ; [L420] _Bool tmp___4 ; [L421] int8_t tmp___5 ; [L422] _Bool tmp___6 ; [L423] _Bool tmp___7 ; [L424] _Bool tmp___8 ; [L425] int8_t tmp___9 ; [L426] _Bool tmp___10 ; [L427] _Bool tmp___11 ; [L428] _Bool tmp___12 ; [L429] msg_t tmp___13 ; [L430] _Bool tmp___14 ; [L431] _Bool tmp___15 ; [L432] _Bool tmp___16 ; [L433] _Bool tmp___17 ; [L434] int8_t tmp___18 ; [L435] int8_t tmp___19 ; [L436] int8_t tmp___20 ; VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L439] COND FALSE !(! side1Failed) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L442] COND TRUE ! side2Failed [L443] tmp = 1 VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L58] COND FALSE !(!cond) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L178] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L181] COND TRUE (int )index == 1 [L182] return (manual_selection_History_1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L448] tmp___0 = read_manual_selection_history((unsigned char)1) [L449] COND TRUE ! tmp___0 [L88] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L450] tmp___1 = read_side1_failed_history((unsigned char)1) [L451] COND TRUE ! tmp___1 [L88] COND TRUE (int )index == 0 [L89] return (side1Failed_History_0); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L452] tmp___2 = read_side1_failed_history((unsigned char)0) [L453] COND FALSE !(! tmp___2) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L88] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L478] tmp___7 = read_side1_failed_history((unsigned char)1) [L479] COND FALSE !(\read(tmp___7)) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L88] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L494] tmp___11 = read_side1_failed_history((unsigned char)1) [L495] COND TRUE ! tmp___11 [L118] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L121] COND TRUE (int )index == 1 [L122] return (side2Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L496] tmp___12 = read_side2_failed_history((unsigned char)1) [L497] COND FALSE !(\read(tmp___12)) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L148] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L151] COND FALSE !((int )index == 1) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L154] COND TRUE (int )index == 2 [L155] return (active_side_History_2); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L510] tmp___20 = read_active_side_history((unsigned char)2) [L511] COND FALSE !((int )tmp___20 > -2) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L529] return (1); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L596] c1 = check() [L608] COND FALSE !(! arg) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L574] COND TRUE 1 [L251] msg_t manual_selection ; [L252] char tmp ; [L255] tmp = __VERIFIER_nondet_char() [L256] manual_selection = tmp [L167] manual_selection_History_2 = manual_selection_History_1 [L168] manual_selection_History_1 = manual_selection_History_0 [L169] manual_selection_History_0 = val VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L258] EXPR manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L258] cs1_new = manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L259] EXPR manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=128, cs2=0, cs2_new=255, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L259] cs2_new = manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L260] manual_selection = (msg_t )0 VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=128, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=128, side1Failed_History_0=128, 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] [L266] int8_t side1 ; [L267] int8_t side2 ; [L268] msg_t manual_selection ; [L269] int8_t next_state ; [L272] side1 = nomsg [L273] side2 = nomsg [L274] manual_selection = (msg_t )0 [L275] side1Failed = __VERIFIER_nondet_bool() [L77] side1Failed_History_2 = side1Failed_History_1 [L78] side1Failed_History_1 = side1Failed_History_0 [L79] side1Failed_History_0 = val VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=128, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=0, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L277] COND FALSE !(\read(side1Failed)) [L284] side1 = s1s1_old [L285] s1s1_old = nomsg [L286] side2 = s2s1_old [L287] s2s1_old = nomsg [L288] manual_selection = cs1_old [L289] cs1_old = nomsg VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L290] COND FALSE !((int )side1 == (int )side2) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L293] COND TRUE (int )side1 == (int )nomsg VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L294] COND TRUE (int )side2 != (int )nomsg [L295] next_state = (int8_t )0 VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L314] EXPR next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=255, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L314] s1s1_new = next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L315] EXPR next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=255, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L315] s1s2_new = next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L316] EXPR next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=255, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L316] s1p_new = next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L317] side1_written = next_state VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L323] int8_t side1 ; [L324] int8_t side2 ; [L325] msg_t manual_selection ; [L326] int8_t next_state ; [L329] side1 = nomsg [L330] side2 = nomsg [L331] manual_selection = (msg_t )0 [L332] side2Failed = __VERIFIER_nondet_bool() [L107] side2Failed_History_2 = side2Failed_History_1 [L108] side2Failed_History_1 = side2Failed_History_0 [L109] side2Failed_History_0 = val VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L334] COND TRUE \read(side2Failed) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L335] EXPR nomsg != nomsg && s2s1_new == nomsg ? nomsg : s2s1_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L335] s2s1_new = nomsg != nomsg && s2s1_new == nomsg ? nomsg : s2s1_new [L336] EXPR nomsg != nomsg && s2s2_new == nomsg ? nomsg : s2s2_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L336] s2s2_new = nomsg != nomsg && s2s2_new == nomsg ? nomsg : s2s2_new [L337] EXPR nomsg != nomsg && s2p_new == nomsg ? nomsg : s2p_new VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=0, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L337] s2p_new = nomsg != nomsg && s2p_new == nomsg ? nomsg : s2p_new [L338] side2_written = nomsg VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L380] int8_t active_side ; [L381] int8_t tmp ; [L382] int8_t side1 ; [L383] int8_t side2 ; [L148] COND TRUE (int )index == 0 [L149] return (active_side_History_0); VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=0, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L386] tmp = read_active_side_history((unsigned char)0) [L387] active_side = tmp [L388] side1 = nomsg [L389] side2 = nomsg [L390] side1 = s1p_old [L391] s1p_old = nomsg [L392] side2 = s2p_old [L393] s2p_old = nomsg VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L394] COND FALSE !((int )side1 == 1) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L397] COND FALSE !((int )side2 == 1) VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L400] COND FALSE !((int )side1 == 0) [L407] active_side = (int8_t )0 VAL [active_side_History_0=0, active_side_History_1=254, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L137] active_side_History_2 = active_side_History_1 [L138] active_side_History_1 = active_side_History_0 [L139] active_side_History_0 = val VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=0, cs1_old=255, cs2=0, cs2_new=0, cs2_old=128, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=0, s1p_old=255, s1s1=0, s1s1_new=0, s1s1_old=255, s1s2=0, s1s2_new=0, s1s2_old=255, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=0, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L580] cs1_old = cs1_new [L581] cs1_new = nomsg [L582] cs2_old = cs2_new [L583] cs2_new = nomsg [L584] s1s2_old = s1s2_new [L585] s1s2_new = nomsg [L586] s1s1_old = s1s1_new [L587] s1s1_new = nomsg [L588] s2s1_old = s2s1_new [L589] s2s1_new = nomsg [L590] s2s2_old = s2s2_new [L591] s2s2_new = nomsg [L592] s1p_old = s1p_new [L593] s1p_new = nomsg [L594] s2p_old = s2p_new [L595] s2p_new = nomsg [L415] int tmp ; [L416] msg_t tmp___0 ; [L417] _Bool tmp___1 ; [L418] _Bool tmp___2 ; [L419] _Bool tmp___3 ; [L420] _Bool tmp___4 ; [L421] int8_t tmp___5 ; [L422] _Bool tmp___6 ; [L423] _Bool tmp___7 ; [L424] _Bool tmp___8 ; [L425] int8_t tmp___9 ; [L426] _Bool tmp___10 ; [L427] _Bool tmp___11 ; [L428] _Bool tmp___12 ; [L429] msg_t tmp___13 ; [L430] _Bool tmp___14 ; [L431] _Bool tmp___15 ; [L432] _Bool tmp___16 ; [L433] _Bool tmp___17 ; [L434] int8_t tmp___18 ; [L435] int8_t tmp___19 ; [L436] int8_t tmp___20 ; VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L439] COND TRUE ! side1Failed [L440] tmp = 1 VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L58] COND FALSE !(!cond) VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L178] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L181] COND TRUE (int )index == 1 [L182] return (manual_selection_History_1); VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L448] tmp___0 = read_manual_selection_history((unsigned char)1) [L449] COND FALSE !(! tmp___0) VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L88] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L478] tmp___7 = read_side1_failed_history((unsigned char)1) [L479] COND TRUE \read(tmp___7) [L118] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L121] COND TRUE (int )index == 1 [L122] return (side2Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L480] tmp___8 = read_side2_failed_history((unsigned char)1) [L481] COND TRUE ! tmp___8 [L148] COND TRUE (int )index == 0 [L149] return (active_side_History_0); VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L482] tmp___5 = read_active_side_history((unsigned char)0) [L483] COND TRUE ! ((int )tmp___5 == 2) [L484] return (0); VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L596] c1 = check() [L608] COND TRUE ! arg VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] [L610] reach_error() VAL [active_side_History_0=0, active_side_History_1=0, active_side_History_2=254, cs1=0, cs1_new=255, cs1_old=0, cs2=0, cs2_new=255, cs2_old=0, manual_selection_History_0=0, manual_selection_History_1=128, manual_selection_History_2=0, nomsg=255, s1p=0, s1p_new=255, s1p_old=0, s1s1=0, s1s1_new=255, s1s1_old=0, s1s2=0, s1s2_new=255, s1s2_old=0, s2p=0, s2p_new=255, s2p_old=255, s2s1=0, s2s1_new=255, s2s1_old=255, s2s2=0, s2s2_new=255, s2s2_old=255, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=128, side1Failed_History_2=0, side2_written=255, side2Failed=128, side2Failed_History_0=128, side2Failed_History_1=0, side2Failed_History_2=0] - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 610]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 294 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 90670.6ms, OverallIterations: 34, TraceHistogramMax: 2, EmptinessCheckTime: 85.9ms, AutomataDifference: 15529.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14087 SDtfs, 36454 SDslu, 38681 SDs, 0 SdLazy, 5162 SolverSat, 500 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4362.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7222 GetRequests, 6842 SyntacticMatches, 34 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2345 ImplicationChecksByTransitivity, 3964.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2243occurred in iteration=32, InterpolantAutomatonStates: 328, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3469.5ms AutomataMinimizationTime, 33 MinimizatonAttempts, 22970 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1243.5ms SsaConstructionTime, 6397.3ms SatisfiabilityAnalysisTime, 22667.0ms InterpolantComputationTime, 3677 NumberOfCodeBlocks, 3677 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 6992 ConstructedInterpolants, 0 QuantifiedInterpolants, 23895 SizeOfPredicates, 120 NumberOfNonLiveVariables, 11591 ConjunctsInSsa, 228 ConjunctsInUnsatCore, 80 InterpolantComputations, 60 PerfectInterpolantSequences, 608/834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 08:00:40,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_370e86b6-1124-465f-ae39-c2d8c47e94e4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...