./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:03:59,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:03:59,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:03:59,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:03:59,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:03:59,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:03:59,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:03:59,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:03:59,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:03:59,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:03:59,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:03:59,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:03:59,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:03:59,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:03:59,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:03:59,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:03:59,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:03:59,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:03:59,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:03:59,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:03:59,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:03:59,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:03:59,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:03:59,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:03:59,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:03:59,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:03:59,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:03:59,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:03:59,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:03:59,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:03:59,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:03:59,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:03:59,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:03:59,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:03:59,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:03:59,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:03:59,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:03:59,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:03:59,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:03:59,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:03:59,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:03:59,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:03:59,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:03:59,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:03:59,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:03:59,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:03:59,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:03:59,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:03:59,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:03:59,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:03:59,325 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:03:59,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:03:59,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:03:59,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:03:59,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:03:59,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:03:59,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:03:59,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:03:59,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:03:59,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:03:59,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:03:59,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:03:59,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:03:59,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:03:59,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:03:59,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:03:59,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:03:59,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:03:59,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:03:59,330 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:03:59,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:03:59,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:03:59,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f [2022-11-02 21:03:59,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:03:59,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:03:59,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:03:59,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:03:59,618 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:03:59,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2022-11-02 21:03:59,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/48543532f/20de6b7780ca4b229c4894f5e90511b7/FLAGc700330b8 [2022-11-02 21:04:00,281 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:00,282 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2022-11-02 21:04:00,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/48543532f/20de6b7780ca4b229c4894f5e90511b7/FLAGc700330b8 [2022-11-02 21:04:00,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/48543532f/20de6b7780ca4b229c4894f5e90511b7 [2022-11-02 21:04:00,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:00,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:00,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:00,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:00,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:00,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:00" (1/1) ... [2022-11-02 21:04:00,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb89973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:00, skipping insertion in model container [2022-11-02 21:04:00,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:00" (1/1) ... [2022-11-02 21:04:00,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:00,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:00,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1107,1120] [2022-11-02 21:04:01,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:01,156 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:01,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1107,1120] [2022-11-02 21:04:01,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:01,304 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:01,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01 WrapperNode [2022-11-02 21:04:01,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:01,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:01,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:01,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:01,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,413 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1088 [2022-11-02 21:04:01,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:01,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:01,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:01,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:01,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:01,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:01,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:01,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:01,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (1/1) ... [2022-11-02 21:04:01,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:01,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:01,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:01,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:01,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:02,127 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:02,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:03,503 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:03,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:03,511 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:04:03,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:03 BoogieIcfgContainer [2022-11-02 21:04:03,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:03,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:03,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:03,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:03,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:00" (1/3) ... [2022-11-02 21:04:03,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3ebbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:03, skipping insertion in model container [2022-11-02 21:04:03,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:01" (2/3) ... [2022-11-02 21:04:03,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3ebbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:03, skipping insertion in model container [2022-11-02 21:04:03,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:03" (3/3) ... [2022-11-02 21:04:03,523 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_FIFO.c [2022-11-02 21:04:03,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:03,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:04:03,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:03,600 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1081b2b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:03,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:04:03,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:03,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:03,613 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:03,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:03,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1972187821, now seen corresponding path program 1 times [2022-11-02 21:04:03,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:03,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507964237] [2022-11-02 21:04:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:03,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:05,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:05,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:05,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507964237] [2022-11-02 21:04:05,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507964237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:05,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:05,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:05,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838803554] [2022-11-02 21:04:05,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:05,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:05,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:05,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:05,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:05,303 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 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) [2022-11-02 21:04:05,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:05,563 INFO L93 Difference]: Finished difference Result 408 states and 611 transitions. [2022-11-02 21:04:05,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:05,568 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 [2022-11-02 21:04:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:05,577 INFO L225 Difference]: With dead ends: 408 [2022-11-02 21:04:05,586 INFO L226 Difference]: Without dead ends: 273 [2022-11-02 21:04:05,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:05,593 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 376 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:05,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 585 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:05,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-11-02 21:04:05,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 143. [2022-11-02 21:04:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4788732394366197) internal successors, (210), 142 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) [2022-11-02 21:04:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 210 transitions. [2022-11-02 21:04:05,636 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 210 transitions. Word has length 27 [2022-11-02 21:04:05,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:05,636 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 210 transitions. [2022-11-02 21:04:05,637 INFO L496 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) [2022-11-02 21:04:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 210 transitions. [2022-11-02 21:04:05,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:05,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:05,638 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:05,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:04:05,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:05,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1301711121, now seen corresponding path program 1 times [2022-11-02 21:04:05,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:05,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222185904] [2022-11-02 21:04:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:05,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:06,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:06,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222185904] [2022-11-02 21:04:06,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222185904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:06,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:06,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:06,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891574405] [2022-11-02 21:04:06,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:06,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:06,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:06,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:06,194 INFO L87 Difference]: Start difference. First operand 143 states and 210 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:06,332 INFO L93 Difference]: Finished difference Result 535 states and 789 transitions. [2022-11-02 21:04:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:06,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:06,336 INFO L225 Difference]: With dead ends: 535 [2022-11-02 21:04:06,336 INFO L226 Difference]: Without dead ends: 404 [2022-11-02 21:04:06,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:06,338 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 955 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:06,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 804 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-02 21:04:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 145. [2022-11-02 21:04:06,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4722222222222223) internal successors, (212), 144 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:06,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 212 transitions. [2022-11-02 21:04:06,354 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 212 transitions. Word has length 27 [2022-11-02 21:04:06,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:06,355 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 212 transitions. [2022-11-02 21:04:06,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:06,356 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 212 transitions. [2022-11-02 21:04:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:06,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:06,357 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:06,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:04:06,357 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:06,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:06,358 INFO L85 PathProgramCache]: Analyzing trace with hash 290593871, now seen corresponding path program 1 times [2022-11-02 21:04:06,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:06,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606225874] [2022-11-02 21:04:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:07,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:07,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:07,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606225874] [2022-11-02 21:04:07,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606225874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:07,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:07,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:07,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36348119] [2022-11-02 21:04:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:07,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:07,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:07,350 INFO L87 Difference]: Start difference. First operand 145 states and 212 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) [2022-11-02 21:04:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:07,497 INFO L93 Difference]: Finished difference Result 408 states and 598 transitions. [2022-11-02 21:04:07,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:07,498 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 [2022-11-02 21:04:07,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:07,499 INFO L225 Difference]: With dead ends: 408 [2022-11-02 21:04:07,499 INFO L226 Difference]: Without dead ends: 267 [2022-11-02 21:04:07,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:07,502 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 380 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:07,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 574 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-02 21:04:07,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 145. [2022-11-02 21:04:07,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4652777777777777) internal successors, (211), 144 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:07,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 211 transitions. [2022-11-02 21:04:07,511 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 211 transitions. Word has length 27 [2022-11-02 21:04:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:07,512 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 211 transitions. [2022-11-02 21:04:07,512 INFO L496 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) [2022-11-02 21:04:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 211 transitions. [2022-11-02 21:04:07,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:07,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:07,513 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:07,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:04:07,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:07,514 INFO L85 PathProgramCache]: Analyzing trace with hash 156580365, now seen corresponding path program 1 times [2022-11-02 21:04:07,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:07,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314342777] [2022-11-02 21:04:07,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:07,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:08,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:08,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:08,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314342777] [2022-11-02 21:04:08,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314342777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:08,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:08,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:08,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14637554] [2022-11-02 21:04:08,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:08,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:08,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:08,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:08,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:08,234 INFO L87 Difference]: Start difference. First operand 145 states and 211 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:08,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:08,423 INFO L93 Difference]: Finished difference Result 414 states and 606 transitions. [2022-11-02 21:04:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:08,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:08,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:08,425 INFO L225 Difference]: With dead ends: 414 [2022-11-02 21:04:08,426 INFO L226 Difference]: Without dead ends: 281 [2022-11-02 21:04:08,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:08,428 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 560 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:08,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 776 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-11-02 21:04:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 149. [2022-11-02 21:04:08,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.4527027027027026) internal successors, (215), 148 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:08,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 215 transitions. [2022-11-02 21:04:08,436 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 215 transitions. Word has length 27 [2022-11-02 21:04:08,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:08,436 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 215 transitions. [2022-11-02 21:04:08,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:08,437 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 215 transitions. [2022-11-02 21:04:08,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:08,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:08,438 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:08,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:04:08,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:08,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash 414745803, now seen corresponding path program 1 times [2022-11-02 21:04:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:08,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514738912] [2022-11-02 21:04:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:10,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514738912] [2022-11-02 21:04:10,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514738912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:10,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:10,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:04:10,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679327145] [2022-11-02 21:04:10,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:10,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:04:10,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:10,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:04:10,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:10,005 INFO L87 Difference]: Start difference. First operand 149 states and 215 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-02 21:04:11,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:11,711 INFO L93 Difference]: Finished difference Result 557 states and 815 transitions. [2022-11-02 21:04:11,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:04:11,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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 [2022-11-02 21:04:11,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:11,713 INFO L225 Difference]: With dead ends: 557 [2022-11-02 21:04:11,713 INFO L226 Difference]: Without dead ends: 421 [2022-11-02 21:04:11,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:04:11,715 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 3314 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:11,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 879 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-02 21:04:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-02 21:04:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 155. [2022-11-02 21:04:11,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.448051948051948) internal successors, (223), 154 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 223 transitions. [2022-11-02 21:04:11,723 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 223 transitions. Word has length 27 [2022-11-02 21:04:11,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:11,724 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 223 transitions. [2022-11-02 21:04:11,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 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) [2022-11-02 21:04:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 223 transitions. [2022-11-02 21:04:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:11,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:11,725 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:11,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:04:11,725 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 472004105, now seen corresponding path program 1 times [2022-11-02 21:04:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364868356] [2022-11-02 21:04:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:11,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:12,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:12,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364868356] [2022-11-02 21:04:12,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364868356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:12,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:12,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:04:12,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384727924] [2022-11-02 21:04:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:12,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:12,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:12,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:12,376 INFO L87 Difference]: Start difference. First operand 155 states and 223 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:12,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:12,594 INFO L93 Difference]: Finished difference Result 433 states and 630 transitions. [2022-11-02 21:04:12,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:12,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-11-02 21:04:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:12,596 INFO L225 Difference]: With dead ends: 433 [2022-11-02 21:04:12,596 INFO L226 Difference]: Without dead ends: 294 [2022-11-02 21:04:12,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:12,597 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 558 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:12,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 963 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:12,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-02 21:04:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 159. [2022-11-02 21:04:12,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 158 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:12,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 228 transitions. [2022-11-02 21:04:12,610 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 228 transitions. Word has length 27 [2022-11-02 21:04:12,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:12,611 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 228 transitions. [2022-11-02 21:04:12,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 228 transitions. [2022-11-02 21:04:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:12,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:12,612 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:12,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:04:12,613 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:12,614 INFO L85 PathProgramCache]: Analyzing trace with hash -337342521, now seen corresponding path program 1 times [2022-11-02 21:04:12,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:12,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155781281] [2022-11-02 21:04:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:12,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:13,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:13,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155781281] [2022-11-02 21:04:13,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155781281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:13,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:13,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589388855] [2022-11-02 21:04:13,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:13,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:13,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:13,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:13,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:13,259 INFO L87 Difference]: Start difference. First operand 159 states and 228 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:13,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:13,461 INFO L93 Difference]: Finished difference Result 440 states and 639 transitions. [2022-11-02 21:04:13,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:13,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:13,465 INFO L225 Difference]: With dead ends: 440 [2022-11-02 21:04:13,465 INFO L226 Difference]: Without dead ends: 301 [2022-11-02 21:04:13,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:13,469 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 546 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:13,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 787 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-02 21:04:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 163. [2022-11-02 21:04:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4320987654320987) internal successors, (232), 162 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:13,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 232 transitions. [2022-11-02 21:04:13,477 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 232 transitions. Word has length 27 [2022-11-02 21:04:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:13,478 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 232 transitions. [2022-11-02 21:04:13,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 232 transitions. [2022-11-02 21:04:13,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:13,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:13,479 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:13,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:04:13,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:13,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:13,480 INFO L85 PathProgramCache]: Analyzing trace with hash -337282939, now seen corresponding path program 1 times [2022-11-02 21:04:13,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:13,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085854499] [2022-11-02 21:04:13,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:13,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:14,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:14,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085854499] [2022-11-02 21:04:14,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085854499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:14,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:14,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:04:14,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334480364] [2022-11-02 21:04:14,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:14,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:14,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:14,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:14,846 INFO L87 Difference]: Start difference. First operand 163 states and 232 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:15,122 INFO L93 Difference]: Finished difference Result 432 states and 622 transitions. [2022-11-02 21:04:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:04:15,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-11-02 21:04:15,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:15,124 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:04:15,125 INFO L226 Difference]: Without dead ends: 279 [2022-11-02 21:04:15,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:04:15,126 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 736 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:15,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 962 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:15,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-11-02 21:04:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 163. [2022-11-02 21:04:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4259259259259258) internal successors, (231), 162 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) [2022-11-02 21:04:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 231 transitions. [2022-11-02 21:04:15,135 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 231 transitions. Word has length 27 [2022-11-02 21:04:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:15,135 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 231 transitions. [2022-11-02 21:04:15,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 231 transitions. [2022-11-02 21:04:15,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:15,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:15,137 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:15,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:04:15,137 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:15,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1963539651, now seen corresponding path program 1 times [2022-11-02 21:04:15,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:15,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152577082] [2022-11-02 21:04:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152577082] [2022-11-02 21:04:15,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152577082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:15,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:15,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:04:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293285650] [2022-11-02 21:04:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:15,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:15,936 INFO L87 Difference]: Start difference. First operand 163 states and 231 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:16,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:16,144 INFO L93 Difference]: Finished difference Result 432 states and 620 transitions. [2022-11-02 21:04:16,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:04:16,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-11-02 21:04:16,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:16,146 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:04:16,146 INFO L226 Difference]: Without dead ends: 277 [2022-11-02 21:04:16,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:04:16,149 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 736 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:16,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 959 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:16,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-11-02 21:04:16,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 163. [2022-11-02 21:04:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4197530864197532) internal successors, (230), 162 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 230 transitions. [2022-11-02 21:04:16,157 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 230 transitions. Word has length 27 [2022-11-02 21:04:16,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:16,158 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 230 transitions. [2022-11-02 21:04:16,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:16,158 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 230 transitions. [2022-11-02 21:04:16,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:16,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:16,160 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:16,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:04:16,164 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1145891201, now seen corresponding path program 1 times [2022-11-02 21:04:16,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:16,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394535642] [2022-11-02 21:04:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:16,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:16,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:16,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394535642] [2022-11-02 21:04:16,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394535642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:16,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:16,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:16,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436710631] [2022-11-02 21:04:16,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:16,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:16,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:16,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:16,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:16,851 INFO L87 Difference]: Start difference. First operand 163 states and 230 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:17,013 INFO L93 Difference]: Finished difference Result 432 states and 618 transitions. [2022-11-02 21:04:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:17,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:17,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:17,015 INFO L225 Difference]: With dead ends: 432 [2022-11-02 21:04:17,016 INFO L226 Difference]: Without dead ends: 275 [2022-11-02 21:04:17,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:17,017 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 549 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:17,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 766 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-02 21:04:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 163. [2022-11-02 21:04:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.4135802469135803) internal successors, (229), 162 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 229 transitions. [2022-11-02 21:04:17,026 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 229 transitions. Word has length 27 [2022-11-02 21:04:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:17,026 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 229 transitions. [2022-11-02 21:04:17,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 229 transitions. [2022-11-02 21:04:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:17,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:17,028 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:17,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:04:17,029 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:17,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1364745919, now seen corresponding path program 1 times [2022-11-02 21:04:17,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:17,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056761931] [2022-11-02 21:04:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:17,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:17,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:04:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:04:17,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:04:17,659 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:04:17,660 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-02 21:04:17,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:04:17,669 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:17,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:04:17,768 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-02 21:04:17,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:04:17 BoogieIcfgContainer [2022-11-02 21:04:17,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:04:17,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:04:17,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:04:17,791 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:04:17,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:03" (3/4) ... [2022-11-02 21:04:17,795 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:04:17,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:04:17,795 INFO L158 Benchmark]: Toolchain (without parser) took 17222.04ms. Allocated memory was 121.6MB in the beginning and 497.0MB in the end (delta: 375.4MB). Free memory was 83.4MB in the beginning and 298.5MB in the end (delta: -215.0MB). Peak memory consumption was 160.1MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,796 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:04:17,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.76ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 77.3MB in the end (delta: 5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.43ms. Allocated memory is still 121.6MB. Free memory was 77.3MB in the beginning and 61.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,797 INFO L158 Benchmark]: Boogie Preprocessor took 142.57ms. Allocated memory is still 121.6MB. Free memory was 61.7MB in the beginning and 88.7MB in the end (delta: -27.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,797 INFO L158 Benchmark]: RCFGBuilder took 1947.74ms. Allocated memory was 121.6MB in the beginning and 224.4MB in the end (delta: 102.8MB). Free memory was 88.1MB in the beginning and 167.8MB in the end (delta: -79.7MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,797 INFO L158 Benchmark]: TraceAbstraction took 14274.68ms. Allocated memory was 224.4MB in the beginning and 497.0MB in the end (delta: 272.6MB). Free memory was 167.8MB in the beginning and 299.5MB in the end (delta: -131.7MB). Peak memory consumption was 139.9MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,798 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 497.0MB. Free memory was 299.5MB in the beginning and 298.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:04:17,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 101.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.76ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 77.3MB in the end (delta: 5.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.43ms. Allocated memory is still 121.6MB. Free memory was 77.3MB in the beginning and 61.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.57ms. Allocated memory is still 121.6MB. Free memory was 61.7MB in the beginning and 88.7MB in the end (delta: -27.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * RCFGBuilder took 1947.74ms. Allocated memory was 121.6MB in the beginning and 224.4MB in the end (delta: 102.8MB). Free memory was 88.1MB in the beginning and 167.8MB in the end (delta: -79.7MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. * TraceAbstraction took 14274.68ms. Allocated memory was 224.4MB in the beginning and 497.0MB in the end (delta: 272.6MB). Free memory was 167.8MB in the beginning and 299.5MB in the end (delta: -131.7MB). Peak memory consumption was 139.9MB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 497.0MB. Free memory was 299.5MB in the beginning and 298.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 248, overapproximation of bitwiseComplement at line 259, overapproximation of bitwiseAnd at line 242. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L31] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L32] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L34] const SORT_36 mask_SORT_36 = (SORT_36)-1 >> (sizeof(SORT_36) * 8 - 3); [L35] const SORT_36 msb_SORT_36 = (SORT_36)1 << (3 - 1); [L37] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 2); [L38] const SORT_206 msb_SORT_206 = (SORT_206)1 << (2 - 1); [L40] const SORT_1 var_10 = 0; [L41] const SORT_13 var_15 = 4; [L42] const SORT_5 var_22 = 1; [L43] const SORT_36 var_38 = 1; [L44] const SORT_36 var_43 = 2; [L45] const SORT_36 var_50 = 4; [L46] const SORT_36 var_53 = 3; [L47] const SORT_13 var_81 = 1; [L48] const SORT_13 var_101 = 0; [L49] const SORT_5 var_149 = 0; [L50] const SORT_1 var_186 = 15; [L52] SORT_1 input_2; [L53] SORT_1 input_3; [L54] SORT_1 input_4; [L55] SORT_5 input_6; [L56] SORT_1 input_7; [L57] SORT_5 input_8; [L58] SORT_5 input_9; [L59] SORT_13 input_94; [L60] SORT_1 input_96; [L61] SORT_1 input_107; [L62] SORT_1 input_112; [L63] SORT_1 input_114; [L64] SORT_1 input_129; [L65] SORT_5 input_140; [L66] SORT_5 input_144; [L67] SORT_5 input_147; [L68] SORT_5 input_152; [L69] SORT_5 input_155; [L70] SORT_5 input_158; [L71] SORT_1 input_173; [L72] SORT_1 input_176; [L74] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L78] SORT_5 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L79] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 init_12_arg_1 = var_10; [L91] state_11 = init_12_arg_1 [L92] SORT_1 init_18_arg_1 = var_10; [L93] state_17 = init_18_arg_1 [L94] SORT_1 init_20_arg_1 = var_10; [L95] state_19 = init_20_arg_1 [L96] SORT_5 init_24_arg_1 = var_22; [L97] state_23 = init_24_arg_1 [L98] SORT_5 init_29_arg_1 = var_22; [L99] state_28 = init_29_arg_1 [L100] SORT_1 init_33_arg_1 = var_10; [L101] state_32 = init_33_arg_1 [L102] SORT_1 init_35_arg_1 = var_10; [L103] state_34 = init_35_arg_1 [L104] SORT_1 init_42_arg_1 = var_10; [L105] state_41 = init_42_arg_1 [L106] SORT_1 init_47_arg_1 = var_10; [L107] state_46 = init_47_arg_1 [L108] SORT_1 init_49_arg_1 = var_10; [L109] state_48 = init_49_arg_1 [L110] SORT_1 init_58_arg_1 = var_10; [L111] state_57 = init_58_arg_1 [L112] SORT_1 init_60_arg_1 = var_10; [L113] state_59 = init_60_arg_1 [L114] SORT_1 init_64_arg_1 = var_10; [L115] state_63 = init_64_arg_1 [L116] SORT_1 init_66_arg_1 = var_10; [L117] state_65 = init_66_arg_1 [L118] SORT_1 init_71_arg_1 = var_10; [L119] state_70 = init_71_arg_1 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L122] input_2 = __VERIFIER_nondet_uchar() [L123] input_3 = __VERIFIER_nondet_uchar() [L124] input_4 = __VERIFIER_nondet_uchar() [L125] input_6 = __VERIFIER_nondet_uchar() [L126] input_7 = __VERIFIER_nondet_uchar() [L127] input_8 = __VERIFIER_nondet_uchar() [L128] input_9 = __VERIFIER_nondet_uchar() [L129] input_94 = __VERIFIER_nondet_uint() [L130] input_96 = __VERIFIER_nondet_uchar() [L131] input_107 = __VERIFIER_nondet_uchar() [L132] input_112 = __VERIFIER_nondet_uchar() [L133] input_114 = __VERIFIER_nondet_uchar() [L134] input_129 = __VERIFIER_nondet_uchar() [L135] input_140 = __VERIFIER_nondet_uchar() [L136] input_144 = __VERIFIER_nondet_uchar() [L137] input_147 = __VERIFIER_nondet_uchar() [L138] input_152 = __VERIFIER_nondet_uchar() [L139] input_155 = __VERIFIER_nondet_uchar() [L140] input_158 = __VERIFIER_nondet_uchar() [L141] input_173 = __VERIFIER_nondet_uchar() [L142] input_176 = __VERIFIER_nondet_uchar() [L145] SORT_1 var_14_arg_0 = state_11; [L146] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L147] SORT_13 var_14 = var_14_arg_0; [L148] SORT_13 var_16_arg_0 = var_14; [L149] SORT_13 var_16_arg_1 = var_15; [L150] SORT_5 var_16 = var_16_arg_0 == var_16_arg_1; [L151] SORT_1 var_21_arg_0 = state_17; [L152] SORT_1 var_21_arg_1 = state_19; [L153] SORT_5 var_21 = var_21_arg_0 == var_21_arg_1; [L154] SORT_5 var_25_arg_0 = state_23; [L155] SORT_5 var_25 = ~var_25_arg_0; [L156] SORT_5 var_26_arg_0 = var_21; [L157] SORT_5 var_26_arg_1 = var_25; [L158] SORT_5 var_26 = var_26_arg_0 & var_26_arg_1; [L159] var_26 = var_26 & mask_SORT_5 [L160] SORT_5 var_27_arg_0 = var_16; [L161] SORT_5 var_27_arg_1 = var_26; [L162] SORT_5 var_27 = var_27_arg_0 == var_27_arg_1; [L163] SORT_5 var_30_arg_0 = state_28; [L164] SORT_5 var_30_arg_1 = state_23; [L165] SORT_5 var_30 = var_30_arg_0 == var_30_arg_1; [L166] SORT_5 var_31_arg_0 = var_27; [L167] SORT_5 var_31_arg_1 = var_30; [L168] SORT_5 var_31 = var_31_arg_0 & var_31_arg_1; [L169] SORT_1 var_37_arg_0 = state_11; [L170] SORT_36 var_37 = var_37_arg_0 >> 0; [L171] var_37 = var_37 & mask_SORT_36 [L172] SORT_36 var_54_arg_0 = var_37; [L173] SORT_36 var_54_arg_1 = var_53; [L174] SORT_5 var_54 = var_54_arg_0 == var_54_arg_1; [L175] SORT_36 var_51_arg_0 = var_37; [L176] SORT_36 var_51_arg_1 = var_50; [L177] SORT_5 var_51 = var_51_arg_0 == var_51_arg_1; [L178] SORT_5 var_55_arg_0 = var_54; [L179] SORT_5 var_55_arg_1 = var_51; [L180] SORT_5 var_55 = var_55_arg_0 | var_55_arg_1; [L181] var_55 = var_55 & mask_SORT_5 [L182] SORT_5 var_52_arg_0 = var_51; [L183] SORT_1 var_52_arg_1 = state_48; [L184] SORT_1 var_52_arg_2 = state_46; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_43=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L185] EXPR var_52_arg_0 ? var_52_arg_1 : var_52_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_43=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52_arg_0=0, var_52_arg_0 ? var_52_arg_1 : var_52_arg_2=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L185] SORT_1 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L186] SORT_36 var_44_arg_0 = var_37; [L187] SORT_36 var_44_arg_1 = var_43; [L188] SORT_5 var_44 = var_44_arg_0 == var_44_arg_1; [L189] SORT_36 var_39_arg_0 = var_37; [L190] SORT_36 var_39_arg_1 = var_38; [L191] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L192] SORT_5 var_40_arg_0 = var_39; [L193] SORT_1 var_40_arg_1 = state_34; [L194] SORT_1 var_40_arg_2 = state_32; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L195] EXPR var_40_arg_0 ? var_40_arg_1 : var_40_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40_arg_0=0, var_40_arg_0 ? var_40_arg_1 : var_40_arg_2=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L195] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L196] SORT_5 var_45_arg_0 = var_44; [L197] SORT_1 var_45_arg_1 = state_41; [L198] SORT_1 var_45_arg_2 = var_40; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L199] EXPR var_45_arg_0 ? var_45_arg_1 : var_45_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45_arg_0=0, var_45_arg_0 ? var_45_arg_1 : var_45_arg_2=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L199] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L200] SORT_5 var_56_arg_0 = var_55; [L201] SORT_1 var_56_arg_1 = var_52; [L202] SORT_1 var_56_arg_2 = var_45; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_81=1] [L203] EXPR var_56_arg_0 ? var_56_arg_1 : var_56_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=0, var_56_arg_0 ? var_56_arg_1 : var_56_arg_2=0, var_56_arg_1=0, var_56_arg_2=0, var_81=1] [L203] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; [L204] var_56 = var_56 & mask_SORT_1 [L205] SORT_1 var_75_arg_0 = state_17; [L206] SORT_5 var_75 = var_75_arg_0 >> 2; [L207] var_75 = var_75 & mask_SORT_5 [L208] SORT_1 var_68_arg_0 = state_17; [L209] SORT_5 var_68 = var_68_arg_0 >> 1; [L210] var_68 = var_68 & mask_SORT_5 [L211] SORT_1 var_61_arg_0 = state_17; [L212] SORT_5 var_61 = var_61_arg_0 >> 0; [L213] var_61 = var_61 & mask_SORT_5 [L214] SORT_5 var_73_arg_0 = var_61; [L215] SORT_1 var_73_arg_1 = input_4; [L216] SORT_1 var_73_arg_2 = input_3; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L217] EXPR var_73_arg_0 ? var_73_arg_1 : var_73_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_73_arg_0=0, var_73_arg_0 ? var_73_arg_1 : var_73_arg_2=2, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L217] SORT_1 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L218] SORT_5 var_72_arg_0 = var_61; [L219] SORT_1 var_72_arg_1 = input_2; [L220] SORT_1 var_72_arg_2 = state_70; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L221] EXPR var_72_arg_0 ? var_72_arg_1 : var_72_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72_arg_0=0, var_72_arg_0 ? var_72_arg_1 : var_72_arg_2=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_75=0, var_75_arg_0=0, var_81=1] [L221] SORT_1 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L222] SORT_5 var_74_arg_0 = var_68; [L223] SORT_1 var_74_arg_1 = var_73; [L224] SORT_1 var_74_arg_2 = var_72; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L225] EXPR var_74_arg_0 ? var_74_arg_1 : var_74_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74_arg_0=0, var_74_arg_0 ? var_74_arg_1 : var_74_arg_2=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L225] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L226] SORT_5 var_67_arg_0 = var_61; [L227] SORT_1 var_67_arg_1 = state_65; [L228] SORT_1 var_67_arg_2 = state_63; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L229] EXPR var_67_arg_0 ? var_67_arg_1 : var_67_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_67_arg_0=0, var_67_arg_0 ? var_67_arg_1 : var_67_arg_2=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L229] SORT_1 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L230] SORT_5 var_62_arg_0 = var_61; [L231] SORT_1 var_62_arg_1 = state_59; [L232] SORT_1 var_62_arg_2 = state_57; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L233] EXPR var_62_arg_0 ? var_62_arg_1 : var_62_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62_arg_0=0, var_62_arg_0 ? var_62_arg_1 : var_62_arg_2=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L233] SORT_1 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L234] SORT_5 var_69_arg_0 = var_68; [L235] SORT_1 var_69_arg_1 = var_67; [L236] SORT_1 var_69_arg_2 = var_62; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L237] EXPR var_69_arg_0 ? var_69_arg_1 : var_69_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69_arg_0=0, var_69_arg_0 ? var_69_arg_1 : var_69_arg_2=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_81=1] [L237] SORT_1 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L238] SORT_5 var_76_arg_0 = var_75; [L239] SORT_1 var_76_arg_1 = var_74; [L240] SORT_1 var_76_arg_2 = var_69; VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_76_arg_0=0, var_76_arg_1=0, var_76_arg_2=0, var_81=1] [L241] EXPR var_76_arg_0 ? var_76_arg_1 : var_76_arg_2 VAL [init_12_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=1, init_29_arg_1=1, init_33_arg_1=0, init_35_arg_1=0, init_42_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_71_arg_1=0, input_107=6, input_112=19, input_114=14, input_129=12, input_140=3, input_144=10, input_147=11, input_152=1, input_155=4, input_158=17, input_173=9, input_176=7, input_2=16, input_3=2, input_4=13, input_6=18, input_7=20, input_8=8, input_9=15, input_94=2147483653, input_96=2, mask_SORT_1=15, mask_SORT_13=4294967295, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, msb_SORT_1=8, msb_SORT_13=2147483648, msb_SORT_206=2, msb_SORT_36=4, msb_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_10=0, var_101=0, var_14=0, var_149=0, var_14_arg_0=0, var_15=4, var_16=0, var_16_arg_0=0, var_16_arg_1=4, var_186=15, var_21=1, var_21_arg_0=0, var_21_arg_1=0, var_22=1, var_25=0, var_25_arg_0=1, var_26=0, var_26_arg_0=1, var_26_arg_1=0, var_27=1, var_27_arg_0=0, var_27_arg_1=0, var_30=1, var_30_arg_0=1, var_30_arg_1=1, var_31=1, var_31_arg_0=1, var_31_arg_1=1, var_37=0, var_37_arg_0=0, var_38=1, var_39=0, var_39_arg_0=0, var_39_arg_1=1, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_43=2, var_44=0, var_44_arg_0=0, var_44_arg_1=2, var_45=0, var_45_arg_0=0, var_45_arg_1=0, var_45_arg_2=0, var_50=4, var_51=0, var_51_arg_0=0, var_51_arg_1=4, var_52=0, var_52_arg_0=0, var_52_arg_1=0, var_52_arg_2=0, var_53=3, var_54=0, var_54_arg_0=0, var_54_arg_1=3, var_55=0, var_55_arg_0=0, var_55_arg_1=0, var_56=0, var_56_arg_0=0, var_56_arg_1=0, var_56_arg_2=0, var_61=0, var_61_arg_0=0, var_62=0, var_62_arg_0=0, var_62_arg_1=0, var_62_arg_2=0, var_67=0, var_67_arg_0=0, var_67_arg_1=0, var_67_arg_2=0, var_68=0, var_68_arg_0=0, var_69=0, var_69_arg_0=0, var_69_arg_1=0, var_69_arg_2=0, var_72=0, var_72_arg_0=0, var_72_arg_1=16, var_72_arg_2=0, var_73=2, var_73_arg_0=0, var_73_arg_1=13, var_73_arg_2=2, var_74=0, var_74_arg_0=0, var_74_arg_1=2, var_74_arg_2=0, var_75=0, var_75_arg_0=0, var_76_arg_0=0, var_76_arg_0 ? var_76_arg_1 : var_76_arg_2=0, var_76_arg_1=0, var_76_arg_2=0, var_81=1] [L241] SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; [L242] var_76 = var_76 & mask_SORT_1 [L243] SORT_1 var_77_arg_0 = var_56; [L244] SORT_1 var_77_arg_1 = var_76; [L245] SORT_5 var_77 = var_77_arg_0 == var_77_arg_1; [L246] SORT_5 var_78_arg_0 = state_28; [L247] SORT_5 var_78_arg_1 = var_77; [L248] SORT_5 var_78 = var_78_arg_0 | var_78_arg_1; [L249] SORT_5 var_79_arg_0 = var_31; [L250] SORT_5 var_79_arg_1 = var_78; [L251] SORT_5 var_79 = var_79_arg_0 & var_79_arg_1; [L252] SORT_5 var_80_arg_0 = var_79; [L253] var_80_arg_0 = var_80_arg_0 & mask_SORT_5 [L254] SORT_13 var_80 = var_80_arg_0; [L255] SORT_13 var_82_arg_0 = var_80; [L256] SORT_13 var_82_arg_1 = var_81; [L257] SORT_5 var_82 = var_82_arg_0 == var_82_arg_1; [L258] SORT_5 var_85_arg_0 = var_82; [L259] SORT_5 var_85 = ~var_85_arg_0; [L260] SORT_5 var_86_arg_0 = var_22; [L261] SORT_5 var_86_arg_1 = var_85; [L262] SORT_5 var_86 = var_86_arg_0 & var_86_arg_1; [L263] var_86 = var_86 & mask_SORT_5 [L264] SORT_5 bad_87_arg_0 = var_86; [L265] CALL __VERIFIER_assert(!(bad_87_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8710 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8710 mSDsluCounter, 8055 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6058 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 406 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1997 mSDtfsCounter, 406 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=7, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 1524 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 297 NumberOfCodeBlocks, 297 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 989 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:04:17,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:04:20,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:20,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:20,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:20,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:20,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:20,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:20,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:20,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:20,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:20,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:20,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:20,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:20,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:20,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:20,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:20,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:20,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:20,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:20,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:20,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:20,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:20,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:20,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:20,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:20,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:20,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:20,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:20,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:20,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:20,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:20,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:20,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:20,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:20,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:20,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:20,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:20,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:20,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:20,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:20,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:20,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-02 21:04:20,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:20,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:20,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:20,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:20,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:04:20,296 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:04:20,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:20,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:20,298 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:20,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:20,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:20,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:04:20,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:04:20,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:04:20,300 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 21:04:20,300 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 21:04:20,300 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 21:04:20,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:20,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:20,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:04:20,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:20,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:20,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:04:20,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:20,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:20,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:04:20,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:04:20,303 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 21:04:20,304 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 21:04:20,304 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:04:20,304 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:04:20,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:04:20,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 21:04:20,305 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_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16eea741307fcf998a7d8c15fea1df6c992fe7672606bd6ee824e0bc4e8768f [2022-11-02 21:04:20,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:20,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:20,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:20,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:20,684 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:20,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2022-11-02 21:04:20,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/e10e238b6/0a98349573b24a108abea22a3d801eb3/FLAGc0408dbf4 [2022-11-02 21:04:21,366 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:21,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2022-11-02 21:04:21,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/e10e238b6/0a98349573b24a108abea22a3d801eb3/FLAGc0408dbf4 [2022-11-02 21:04:21,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/data/e10e238b6/0a98349573b24a108abea22a3d801eb3 [2022-11-02 21:04:21,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:21,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:21,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:21,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:21,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:21,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:21" (1/1) ... [2022-11-02 21:04:21,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a47f187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:21, skipping insertion in model container [2022-11-02 21:04:21,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:21" (1/1) ... [2022-11-02 21:04:21,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:21,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:21,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1107,1120] [2022-11-02 21:04:22,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:22,065 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:22,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1107,1120] [2022-11-02 21:04:22,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:22,244 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:22,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22 WrapperNode [2022-11-02 21:04:22,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:22,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:22,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:22,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:22,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,356 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1088 [2022-11-02 21:04:22,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:22,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:22,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:22,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:22,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:22,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:22,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:22,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:22,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (1/1) ... [2022-11-02 21:04:22,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:22,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:22,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:22,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:22,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:22,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:23,811 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:23,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:23,820 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 21:04:23,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:23 BoogieIcfgContainer [2022-11-02 21:04:23,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:23,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:23,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:23,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:23,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:21" (1/3) ... [2022-11-02 21:04:23,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af4d6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:23, skipping insertion in model container [2022-11-02 21:04:23,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:22" (2/3) ... [2022-11-02 21:04:23,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af4d6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:23, skipping insertion in model container [2022-11-02 21:04:23,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:23" (3/3) ... [2022-11-02 21:04:23,831 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_FIFO.c [2022-11-02 21:04:23,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:23,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:04:23,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:23,905 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@52060e05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:23,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:04:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:23,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:23,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:23,918 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:23,918 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:23,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1972187821, now seen corresponding path program 1 times [2022-11-02 21:04:23,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:23,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089239285] [2022-11-02 21:04:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:23,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:23,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:23,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:23,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 21:04:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:24,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:04:24,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:24,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:24,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:24,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089239285] [2022-11-02 21:04:24,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089239285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:24,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:24,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076683300] [2022-11-02 21:04:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:24,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:24,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:24,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:24,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:24,363 INFO L87 Difference]: Start difference. First operand has 137 states, 135 states have (on average 1.4962962962962962) internal successors, (202), 136 states have internal predecessors, (202), 0 states have call successors, (0), 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 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) [2022-11-02 21:04:24,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:24,496 INFO L93 Difference]: Finished difference Result 529 states and 791 transitions. [2022-11-02 21:04:24,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:24,499 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 [2022-11-02 21:04:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:24,510 INFO L225 Difference]: With dead ends: 529 [2022-11-02 21:04:24,510 INFO L226 Difference]: Without dead ends: 394 [2022-11-02 21:04:24,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:24,517 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 575 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:24,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 761 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:24,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-02 21:04:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 135. [2022-11-02 21:04:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 134 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 198 transitions. [2022-11-02 21:04:24,562 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 198 transitions. Word has length 27 [2022-11-02 21:04:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:24,563 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 198 transitions. [2022-11-02 21:04:24,563 INFO L496 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) [2022-11-02 21:04:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 198 transitions. [2022-11-02 21:04:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:24,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:24,564 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:24,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:24,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:24,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2106201327, now seen corresponding path program 1 times [2022-11-02 21:04:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:24,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186168421] [2022-11-02 21:04:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:24,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:24,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:24,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:24,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 21:04:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:25,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:04:25,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:25,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:25,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:25,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186168421] [2022-11-02 21:04:25,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186168421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:25,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:25,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:25,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794576025] [2022-11-02 21:04:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:25,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:25,095 INFO L87 Difference]: Start difference. First operand 135 states and 198 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:25,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:25,219 INFO L93 Difference]: Finished difference Result 526 states and 776 transitions. [2022-11-02 21:04:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:25,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:25,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:25,223 INFO L225 Difference]: With dead ends: 526 [2022-11-02 21:04:25,223 INFO L226 Difference]: Without dead ends: 395 [2022-11-02 21:04:25,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:25,225 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 762 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:25,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1138 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-02 21:04:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 137. [2022-11-02 21:04:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 136 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 200 transitions. [2022-11-02 21:04:25,236 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 200 transitions. Word has length 27 [2022-11-02 21:04:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:25,237 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 200 transitions. [2022-11-02 21:04:25,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 200 transitions. [2022-11-02 21:04:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:25,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:25,238 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:25,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:25,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:25,453 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:25,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:25,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1887346609, now seen corresponding path program 1 times [2022-11-02 21:04:25,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:25,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277548603] [2022-11-02 21:04:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:25,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:25,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:25,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:25,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 21:04:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:25,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 21:04:25,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:25,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:25,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:25,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277548603] [2022-11-02 21:04:25,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277548603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:25,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:25,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:04:25,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083106313] [2022-11-02 21:04:25,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:25,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:25,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:25,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:25,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:25,807 INFO L87 Difference]: Start difference. First operand 137 states and 200 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:25,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:25,964 INFO L93 Difference]: Finished difference Result 528 states and 778 transitions. [2022-11-02 21:04:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:04:25,965 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-11-02 21:04:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:25,966 INFO L225 Difference]: With dead ends: 528 [2022-11-02 21:04:25,967 INFO L226 Difference]: Without dead ends: 397 [2022-11-02 21:04:25,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:04:25,974 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 950 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 1512 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:25,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 1512 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-02 21:04:25,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 139. [2022-11-02 21:04:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 1.463768115942029) internal successors, (202), 138 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 202 transitions. [2022-11-02 21:04:25,989 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 202 transitions. Word has length 27 [2022-11-02 21:04:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:25,990 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 202 transitions. [2022-11-02 21:04:25,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-11-02 21:04:25,990 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 202 transitions. [2022-11-02 21:04:25,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:25,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:25,991 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:26,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:26,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:26,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:26,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1589972237, now seen corresponding path program 1 times [2022-11-02 21:04:26,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:26,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667445453] [2022-11-02 21:04:26,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:26,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:26,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:26,210 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:26,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 21:04:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:26,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:26,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:26,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:26,576 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:26,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667445453] [2022-11-02 21:04:26,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667445453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:26,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:26,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:26,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954281577] [2022-11-02 21:04:26,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:26,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:26,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:26,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:26,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:26,578 INFO L87 Difference]: Start difference. First operand 139 states and 202 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:26,869 INFO L93 Difference]: Finished difference Result 526 states and 774 transitions. [2022-11-02 21:04:26,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:26,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:26,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:26,871 INFO L225 Difference]: With dead ends: 526 [2022-11-02 21:04:26,871 INFO L226 Difference]: Without dead ends: 395 [2022-11-02 21:04:26,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:26,873 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 746 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:26,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1052 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-02 21:04:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 141. [2022-11-02 21:04:26,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.457142857142857) internal successors, (204), 140 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:26,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 204 transitions. [2022-11-02 21:04:26,887 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 204 transitions. Word has length 27 [2022-11-02 21:04:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:26,887 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 204 transitions. [2022-11-02 21:04:26,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 204 transitions. [2022-11-02 21:04:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:26,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:26,889 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:26,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:27,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:27,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -404172469, now seen corresponding path program 1 times [2022-11-02 21:04:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:27,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365358781] [2022-11-02 21:04:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:27,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:27,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:27,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:27,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 21:04:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:27,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:27,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:27,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:27,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:27,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365358781] [2022-11-02 21:04:27,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365358781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:27,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:27,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:27,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256048937] [2022-11-02 21:04:27,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:27,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:27,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:27,458 INFO L87 Difference]: Start difference. First operand 141 states and 204 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) [2022-11-02 21:04:27,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:27,713 INFO L93 Difference]: Finished difference Result 525 states and 772 transitions. [2022-11-02 21:04:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:27,714 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 [2022-11-02 21:04:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:27,715 INFO L225 Difference]: With dead ends: 525 [2022-11-02 21:04:27,715 INFO L226 Difference]: Without dead ends: 394 [2022-11-02 21:04:27,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:27,717 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 550 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:27,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 678 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:27,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-02 21:04:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 143. [2022-11-02 21:04:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.4507042253521127) internal successors, (206), 142 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:27,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 206 transitions. [2022-11-02 21:04:27,723 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 206 transitions. Word has length 27 [2022-11-02 21:04:27,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:27,724 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 206 transitions. [2022-11-02 21:04:27,724 INFO L496 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) [2022-11-02 21:04:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 206 transitions. [2022-11-02 21:04:27,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:27,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:27,725 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:27,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:27,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:27,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:27,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1425240823, now seen corresponding path program 1 times [2022-11-02 21:04:27,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:27,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753995454] [2022-11-02 21:04:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:27,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:27,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:27,928 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:27,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 21:04:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:28,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:28,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:28,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:28,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:28,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753995454] [2022-11-02 21:04:28,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753995454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:28,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:28,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:28,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964340363] [2022-11-02 21:04:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:28,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:28,240 INFO L87 Difference]: Start difference. First operand 143 states and 206 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:28,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:28,547 INFO L93 Difference]: Finished difference Result 534 states and 784 transitions. [2022-11-02 21:04:28,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:28,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:28,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:28,551 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:04:28,551 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:04:28,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:28,552 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 748 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:28,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1049 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:04:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 145. [2022-11-02 21:04:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.4444444444444444) internal successors, (208), 144 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) [2022-11-02 21:04:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 208 transitions. [2022-11-02 21:04:28,559 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 208 transitions. Word has length 27 [2022-11-02 21:04:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:28,559 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 208 transitions. [2022-11-02 21:04:28,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 208 transitions. [2022-11-02 21:04:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:28,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:28,561 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:28,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:28,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:28,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1858609223, now seen corresponding path program 1 times [2022-11-02 21:04:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:28,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227036193] [2022-11-02 21:04:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:28,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:28,764 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:28,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 21:04:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:28,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:28,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:29,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:29,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:29,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227036193] [2022-11-02 21:04:29,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227036193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:29,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:29,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:29,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022515289] [2022-11-02 21:04:29,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:29,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:29,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:29,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:29,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:29,080 INFO L87 Difference]: Start difference. First operand 145 states and 208 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:29,365 INFO L93 Difference]: Finished difference Result 534 states and 783 transitions. [2022-11-02 21:04:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:29,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:29,368 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:04:29,368 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:04:29,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:29,370 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 741 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:29,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1048 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:29,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:04:29,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 147. [2022-11-02 21:04:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.4383561643835616) internal successors, (210), 146 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) [2022-11-02 21:04:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 210 transitions. [2022-11-02 21:04:29,382 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 210 transitions. Word has length 27 [2022-11-02 21:04:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:29,384 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 210 transitions. [2022-11-02 21:04:29,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 210 transitions. [2022-11-02 21:04:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:29,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:29,392 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:29,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:29,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:29,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:29,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2116774661, now seen corresponding path program 1 times [2022-11-02 21:04:29,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:29,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064929866] [2022-11-02 21:04:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:29,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:29,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:29,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:29,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 21:04:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:29,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:29,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:29,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:29,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:29,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064929866] [2022-11-02 21:04:29,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064929866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:29,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:29,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:29,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889678336] [2022-11-02 21:04:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:29,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:29,889 INFO L87 Difference]: Start difference. First operand 147 states and 210 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:30,150 INFO L93 Difference]: Finished difference Result 534 states and 782 transitions. [2022-11-02 21:04:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:30,152 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:04:30,152 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:04:30,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:30,153 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 729 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:30,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 1038 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:04:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 151. [2022-11-02 21:04:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4333333333333333) internal successors, (215), 150 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2022-11-02 21:04:30,160 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 27 [2022-11-02 21:04:30,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:30,161 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2022-11-02 21:04:30,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2022-11-02 21:04:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:30,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:30,162 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:30,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:30,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:30,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:30,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:30,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1307428035, now seen corresponding path program 1 times [2022-11-02 21:04:30,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:30,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711190000] [2022-11-02 21:04:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:30,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:30,377 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-02 21:04:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:30,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:30,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:30,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:30,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:30,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:30,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711190000] [2022-11-02 21:04:30,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711190000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:30,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:30,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901390809] [2022-11-02 21:04:30,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:30,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:30,673 INFO L87 Difference]: Start difference. First operand 151 states and 215 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:30,989 INFO L93 Difference]: Finished difference Result 534 states and 781 transitions. [2022-11-02 21:04:30,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:30,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,002 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:04:31,002 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:04:31,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:31,005 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 722 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 1037 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:04:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 153. [2022-11-02 21:04:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.4276315789473684) internal successors, (217), 152 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 217 transitions. [2022-11-02 21:04:31,013 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 217 transitions. Word has length 27 [2022-11-02 21:04:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,013 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 217 transitions. [2022-11-02 21:04:31,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 217 transitions. [2022-11-02 21:04:31,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:31,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,015 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:31,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:31,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:31,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:31,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1364686337, now seen corresponding path program 1 times [2022-11-02 21:04:31,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:31,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203203126] [2022-11-02 21:04:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:31,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:31,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:31,229 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:31,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-02 21:04:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:31,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:31,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:31,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:31,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:31,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203203126] [2022-11-02 21:04:31,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [203203126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:31,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:31,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:31,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360483117] [2022-11-02 21:04:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:31,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:31,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:31,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:31,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:31,585 INFO L87 Difference]: Start difference. First operand 153 states and 217 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:31,886 INFO L93 Difference]: Finished difference Result 534 states and 780 transitions. [2022-11-02 21:04:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:31,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:31,889 INFO L225 Difference]: With dead ends: 534 [2022-11-02 21:04:31,889 INFO L226 Difference]: Without dead ends: 403 [2022-11-02 21:04:31,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:31,890 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 715 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:31,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1036 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-02 21:04:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 155. [2022-11-02 21:04:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.422077922077922) internal successors, (219), 154 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2022-11-02 21:04:31,899 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 27 [2022-11-02 21:04:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:31,899 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2022-11-02 21:04:31,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2022-11-02 21:04:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-02 21:04:31,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:31,901 INFO L195 NwaCegarLoop]: 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] [2022-11-02 21:04:31,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:32,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:32,114 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:32,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1364745919, now seen corresponding path program 1 times [2022-11-02 21:04:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:32,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467833718] [2022-11-02 21:04:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:32,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:32,117 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:32,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-02 21:04:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:32,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-02 21:04:32,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:32,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:32,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:32,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:32,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467833718] [2022-11-02 21:04:32,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467833718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:32,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:32,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:32,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224513149] [2022-11-02 21:04:32,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:32,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:32,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:32,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:32,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:32,917 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:33,259 INFO L93 Difference]: Finished difference Result 287 states and 414 transitions. [2022-11-02 21:04:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2022-11-02 21:04:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:33,261 INFO L225 Difference]: With dead ends: 287 [2022-11-02 21:04:33,262 INFO L226 Difference]: Without dead ends: 285 [2022-11-02 21:04:33,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:33,263 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 530 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:33,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 698 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-02 21:04:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-02 21:04:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 157. [2022-11-02 21:04:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.4166666666666667) internal successors, (221), 156 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 221 transitions. [2022-11-02 21:04:33,282 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 221 transitions. Word has length 27 [2022-11-02 21:04:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:33,283 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 221 transitions. [2022-11-02 21:04:33,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2022-11-02 21:04:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 221 transitions. [2022-11-02 21:04:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:33,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:33,295 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:33,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:33,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:33,510 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:33,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:33,510 INFO L85 PathProgramCache]: Analyzing trace with hash -389837389, now seen corresponding path program 1 times [2022-11-02 21:04:33,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:33,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281848678] [2022-11-02 21:04:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:33,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:33,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:33,513 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:33,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-02 21:04:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:33,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:04:33,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:34,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:34,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:34,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281848678] [2022-11-02 21:04:34,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281848678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:34,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:34,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:34,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113243866] [2022-11-02 21:04:34,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:34,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:34,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:34,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:34,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:34,092 INFO L87 Difference]: Start difference. First operand 157 states and 221 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:34,340 INFO L93 Difference]: Finished difference Result 523 states and 764 transitions. [2022-11-02 21:04:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:34,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:34,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:34,343 INFO L225 Difference]: With dead ends: 523 [2022-11-02 21:04:34,343 INFO L226 Difference]: Without dead ends: 392 [2022-11-02 21:04:34,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:34,344 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 501 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:34,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 670 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:04:34,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-02 21:04:34,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 159. [2022-11-02 21:04:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.4113924050632911) internal successors, (223), 158 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 223 transitions. [2022-11-02 21:04:34,352 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 223 transitions. Word has length 156 [2022-11-02 21:04:34,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:34,352 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 223 transitions. [2022-11-02 21:04:34,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:34,352 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 223 transitions. [2022-11-02 21:04:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:34,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:34,354 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:34,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:34,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:34,570 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1337889355, now seen corresponding path program 1 times [2022-11-02 21:04:34,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:34,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857436119] [2022-11-02 21:04:34,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:34,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:34,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:34,573 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:34,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-02 21:04:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:35,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:35,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:35,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:35,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:35,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857436119] [2022-11-02 21:04:35,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857436119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:35,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:35,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004656194] [2022-11-02 21:04:35,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:35,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:35,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:35,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:35,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:35,263 INFO L87 Difference]: Start difference. First operand 159 states and 223 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:35,464 INFO L93 Difference]: Finished difference Result 296 states and 426 transitions. [2022-11-02 21:04:35,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:04:35,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:35,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:35,467 INFO L225 Difference]: With dead ends: 296 [2022-11-02 21:04:35,467 INFO L226 Difference]: Without dead ends: 165 [2022-11-02 21:04:35,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:35,468 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 6 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:35,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 732 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 18 Unchecked, 0.2s Time] [2022-11-02 21:04:35,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-02 21:04:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-02 21:04:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 1.4085365853658536) internal successors, (231), 164 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) [2022-11-02 21:04:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 231 transitions. [2022-11-02 21:04:35,484 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 231 transitions. Word has length 156 [2022-11-02 21:04:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:35,485 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 231 transitions. [2022-11-02 21:04:35,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 231 transitions. [2022-11-02 21:04:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:35,491 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:35,491 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:35,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:35,698 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:35,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash -476055753, now seen corresponding path program 1 times [2022-11-02 21:04:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:35,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969442357] [2022-11-02 21:04:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:35,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:35,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:35,701 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:35,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-02 21:04:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:36,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:36,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:36,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:36,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:36,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969442357] [2022-11-02 21:04:36,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969442357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:36,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:36,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897325094] [2022-11-02 21:04:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:36,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:36,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:36,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:36,357 INFO L87 Difference]: Start difference. First operand 165 states and 231 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:36,473 INFO L93 Difference]: Finished difference Result 300 states and 431 transitions. [2022-11-02 21:04:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:36,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:36,475 INFO L225 Difference]: With dead ends: 300 [2022-11-02 21:04:36,475 INFO L226 Difference]: Without dead ends: 169 [2022-11-02 21:04:36,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:36,476 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 7 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:36,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 720 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-02 21:04:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-02 21:04:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-02 21:04:36,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.4047619047619047) internal successors, (236), 168 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 236 transitions. [2022-11-02 21:04:36,481 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 236 transitions. Word has length 156 [2022-11-02 21:04:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:36,481 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 236 transitions. [2022-11-02 21:04:36,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:36,481 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 236 transitions. [2022-11-02 21:04:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:36,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:36,483 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:36,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:36,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:36,694 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:36,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:36,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1758228039, now seen corresponding path program 1 times [2022-11-02 21:04:36,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:36,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316875774] [2022-11-02 21:04:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:36,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:36,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:36,696 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:36,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-02 21:04:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:37,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:04:37,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:37,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:37,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316875774] [2022-11-02 21:04:37,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316875774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:37,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:37,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:04:37,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76993626] [2022-11-02 21:04:37,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:37,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:04:37,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:37,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:04:37,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:37,333 INFO L87 Difference]: Start difference. First operand 169 states and 236 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:37,447 INFO L93 Difference]: Finished difference Result 310 states and 443 transitions. [2022-11-02 21:04:37,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:37,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:37,449 INFO L225 Difference]: With dead ends: 310 [2022-11-02 21:04:37,449 INFO L226 Difference]: Without dead ends: 179 [2022-11-02 21:04:37,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:37,450 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 12 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:37,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 901 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-02 21:04:37,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-11-02 21:04:37,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2022-11-02 21:04:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 1.3932584269662922) internal successors, (248), 178 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 248 transitions. [2022-11-02 21:04:37,455 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 248 transitions. Word has length 156 [2022-11-02 21:04:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:37,455 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 248 transitions. [2022-11-02 21:04:37,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 248 transitions. [2022-11-02 21:04:37,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:37,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:37,457 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:37,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:37,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:37,679 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:37,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:37,679 INFO L85 PathProgramCache]: Analyzing trace with hash -36225353, now seen corresponding path program 1 times [2022-11-02 21:04:37,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:37,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340441064] [2022-11-02 21:04:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:37,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:37,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:37,681 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:37,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-02 21:04:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:38,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:38,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:38,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:38,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340441064] [2022-11-02 21:04:38,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340441064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:38,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:38,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:04:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412064075] [2022-11-02 21:04:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:38,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:04:38,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:38,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:04:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:04:38,360 INFO L87 Difference]: Start difference. First operand 179 states and 248 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:38,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:38,490 INFO L93 Difference]: Finished difference Result 316 states and 451 transitions. [2022-11-02 21:04:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:04:38,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:38,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:38,492 INFO L225 Difference]: With dead ends: 316 [2022-11-02 21:04:38,492 INFO L226 Difference]: Without dead ends: 185 [2022-11-02 21:04:38,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:38,493 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 7 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:38,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 543 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2022-11-02 21:04:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-02 21:04:38,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-02 21:04:38,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.391304347826087) internal successors, (256), 184 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 256 transitions. [2022-11-02 21:04:38,498 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 256 transitions. Word has length 156 [2022-11-02 21:04:38,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:38,499 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 256 transitions. [2022-11-02 21:04:38,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 256 transitions. [2022-11-02 21:04:38,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:38,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:38,501 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:38,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:38,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:38,702 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1690919609, now seen corresponding path program 1 times [2022-11-02 21:04:38,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:38,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756041293] [2022-11-02 21:04:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:38,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:38,704 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:38,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-02 21:04:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:39,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:39,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:39,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:39,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756041293] [2022-11-02 21:04:39,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [756041293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:39,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:39,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205328647] [2022-11-02 21:04:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:39,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:39,728 INFO L87 Difference]: Start difference. First operand 185 states and 256 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:39,895 INFO L93 Difference]: Finished difference Result 533 states and 772 transitions. [2022-11-02 21:04:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:39,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:39,898 INFO L225 Difference]: With dead ends: 533 [2022-11-02 21:04:39,898 INFO L226 Difference]: Without dead ends: 402 [2022-11-02 21:04:39,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:39,900 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 568 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:39,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1073 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:04:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-02 21:04:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 193. [2022-11-02 21:04:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.390625) internal successors, (267), 192 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) [2022-11-02 21:04:39,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 267 transitions. [2022-11-02 21:04:39,932 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 267 transitions. Word has length 156 [2022-11-02 21:04:39,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:39,932 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 267 transitions. [2022-11-02 21:04:39,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 267 transitions. [2022-11-02 21:04:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:39,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:39,935 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:39,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:40,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:40,155 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1809361083, now seen corresponding path program 1 times [2022-11-02 21:04:40,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:40,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418495207] [2022-11-02 21:04:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:40,157 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:40,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:40,159 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:40,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-02 21:04:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:40,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:40,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:40,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:40,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:40,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418495207] [2022-11-02 21:04:40,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418495207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:40,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:40,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187512370] [2022-11-02 21:04:40,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:40,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:40,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:40,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:40,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:40,904 INFO L87 Difference]: Start difference. First operand 193 states and 267 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:41,057 INFO L93 Difference]: Finished difference Result 330 states and 470 transitions. [2022-11-02 21:04:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:41,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:41,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:41,059 INFO L225 Difference]: With dead ends: 330 [2022-11-02 21:04:41,060 INFO L226 Difference]: Without dead ends: 199 [2022-11-02 21:04:41,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:41,061 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 22 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:41,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 716 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-11-02 21:04:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-02 21:04:41,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-11-02 21:04:41,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 1.3888888888888888) internal successors, (275), 198 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 275 transitions. [2022-11-02 21:04:41,068 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 275 transitions. Word has length 156 [2022-11-02 21:04:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:41,068 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 275 transitions. [2022-11-02 21:04:41,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 275 transitions. [2022-11-02 21:04:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:41,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:41,071 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:41,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:41,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:41,287 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:41,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1454565315, now seen corresponding path program 1 times [2022-11-02 21:04:41,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:41,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455256160] [2022-11-02 21:04:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:41,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:41,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:41,290 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:41,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-02 21:04:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:41,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:41,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:41,918 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:41,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:41,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455256160] [2022-11-02 21:04:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455256160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:41,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:41,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:41,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254547274] [2022-11-02 21:04:41,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:41,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:41,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:41,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:41,920 INFO L87 Difference]: Start difference. First operand 199 states and 275 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:42,040 INFO L93 Difference]: Finished difference Result 338 states and 481 transitions. [2022-11-02 21:04:42,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:42,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:42,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:42,042 INFO L225 Difference]: With dead ends: 338 [2022-11-02 21:04:42,042 INFO L226 Difference]: Without dead ends: 207 [2022-11-02 21:04:42,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:42,043 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 17 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:42,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 726 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-02 21:04:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-02 21:04:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2022-11-02 21:04:42,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3883495145631068) internal successors, (286), 206 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2022-11-02 21:04:42,048 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 286 transitions. Word has length 156 [2022-11-02 21:04:42,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:42,048 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 286 transitions. [2022-11-02 21:04:42,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 286 transitions. [2022-11-02 21:04:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:42,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:42,050 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:42,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:42,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:42,275 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:42,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:42,276 INFO L85 PathProgramCache]: Analyzing trace with hash 899819967, now seen corresponding path program 1 times [2022-11-02 21:04:42,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:42,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410142894] [2022-11-02 21:04:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:42,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:42,278 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:42,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-02 21:04:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:42,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-02 21:04:42,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:42,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:42,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:42,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410142894] [2022-11-02 21:04:42,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410142894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:42,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:42,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110278102] [2022-11-02 21:04:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:42,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:04:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:42,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:04:42,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:04:42,910 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:43,020 INFO L93 Difference]: Finished difference Result 342 states and 486 transitions. [2022-11-02 21:04:43,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:04:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:43,022 INFO L225 Difference]: With dead ends: 342 [2022-11-02 21:04:43,022 INFO L226 Difference]: Without dead ends: 211 [2022-11-02 21:04:43,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:43,023 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 18 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:43,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 724 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 20 Unchecked, 0.1s Time] [2022-11-02 21:04:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-02 21:04:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-02 21:04:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.3857142857142857) internal successors, (291), 210 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2022-11-02 21:04:43,028 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 291 transitions. Word has length 156 [2022-11-02 21:04:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:43,028 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 291 transitions. [2022-11-02 21:04:43,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions. [2022-11-02 21:04:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:43,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:43,030 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:43,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:43,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:43,246 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:43,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash 313543745, now seen corresponding path program 1 times [2022-11-02 21:04:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:43,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890827766] [2022-11-02 21:04:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:43,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:43,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:43,249 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:43,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-02 21:04:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:43,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 21:04:43,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:44,013 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:44,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:44,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:44,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890827766] [2022-11-02 21:04:44,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890827766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:44,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:44,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:04:44,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987602659] [2022-11-02 21:04:44,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:44,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:04:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:44,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:04:44,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:44,016 INFO L87 Difference]: Start difference. First operand 211 states and 291 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:44,151 INFO L93 Difference]: Finished difference Result 374 states and 528 transitions. [2022-11-02 21:04:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 21:04:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:44,154 INFO L225 Difference]: With dead ends: 374 [2022-11-02 21:04:44,154 INFO L226 Difference]: Without dead ends: 243 [2022-11-02 21:04:44,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:44,155 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 51 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:44,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1048 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 40 Unchecked, 0.1s Time] [2022-11-02 21:04:44,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-02 21:04:44,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2022-11-02 21:04:44,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.3760330578512396) internal successors, (333), 242 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 333 transitions. [2022-11-02 21:04:44,161 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 333 transitions. Word has length 156 [2022-11-02 21:04:44,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:44,162 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 333 transitions. [2022-11-02 21:04:44,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 333 transitions. [2022-11-02 21:04:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:44,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:44,164 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:44,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:44,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:44,382 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1562939073, now seen corresponding path program 1 times [2022-11-02 21:04:44,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:44,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308943478] [2022-11-02 21:04:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:44,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:44,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:44,385 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:44,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-02 21:04:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:44,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:44,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:45,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:45,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:45,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308943478] [2022-11-02 21:04:45,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308943478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:45,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:45,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:04:45,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877665263] [2022-11-02 21:04:45,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:45,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:04:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:45,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:04:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:04:45,467 INFO L87 Difference]: Start difference. First operand 243 states and 333 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:45,572 INFO L93 Difference]: Finished difference Result 388 states and 548 transitions. [2022-11-02 21:04:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:04:45,575 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:45,576 INFO L225 Difference]: With dead ends: 388 [2022-11-02 21:04:45,576 INFO L226 Difference]: Without dead ends: 257 [2022-11-02 21:04:45,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:04:45,577 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 39 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:45,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1064 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 89 Unchecked, 0.1s Time] [2022-11-02 21:04:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-02 21:04:45,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2022-11-02 21:04:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.37890625) internal successors, (353), 256 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 353 transitions. [2022-11-02 21:04:45,584 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 353 transitions. Word has length 156 [2022-11-02 21:04:45,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:45,585 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 353 transitions. [2022-11-02 21:04:45,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 353 transitions. [2022-11-02 21:04:45,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:45,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:45,587 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:45,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:45,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:45,803 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:45,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash -595588419, now seen corresponding path program 1 times [2022-11-02 21:04:45,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:45,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [341951710] [2022-11-02 21:04:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:45,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:45,805 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:45,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-02 21:04:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:46,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:46,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:46,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:46,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:46,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:46,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [341951710] [2022-11-02 21:04:46,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [341951710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:46,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:46,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:04:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034707146] [2022-11-02 21:04:46,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:46,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:04:46,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:46,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:04:46,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:46,818 INFO L87 Difference]: Start difference. First operand 257 states and 353 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:47,490 INFO L93 Difference]: Finished difference Result 912 states and 1321 transitions. [2022-11-02 21:04:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:04:47,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:47,493 INFO L225 Difference]: With dead ends: 912 [2022-11-02 21:04:47,494 INFO L226 Difference]: Without dead ends: 781 [2022-11-02 21:04:47,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:04:47,495 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 1249 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:47,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1716 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-11-02 21:04:47,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 287. [2022-11-02 21:04:47,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.3881118881118881) internal successors, (397), 286 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) [2022-11-02 21:04:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 397 transitions. [2022-11-02 21:04:47,504 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 397 transitions. Word has length 156 [2022-11-02 21:04:47,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:47,504 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 397 transitions. [2022-11-02 21:04:47,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:47,505 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 397 transitions. [2022-11-02 21:04:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:47,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:47,506 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:47,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:47,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:47,718 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:47,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:47,718 INFO L85 PathProgramCache]: Analyzing trace with hash 665328831, now seen corresponding path program 1 times [2022-11-02 21:04:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:47,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701121262] [2022-11-02 21:04:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:47,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:47,721 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:47,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-02 21:04:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:48,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:48,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:48,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:48,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:48,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701121262] [2022-11-02 21:04:48,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701121262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:48,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:48,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763771462] [2022-11-02 21:04:48,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:48,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:48,715 INFO L87 Difference]: Start difference. First operand 287 states and 397 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:49,396 INFO L93 Difference]: Finished difference Result 922 states and 1335 transitions. [2022-11-02 21:04:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:04:49,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:49,399 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:04:49,399 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:04:49,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:49,400 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 1445 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:49,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:04:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 289. [2022-11-02 21:04:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.3854166666666667) internal successors, (399), 288 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 399 transitions. [2022-11-02 21:04:49,409 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 399 transitions. Word has length 156 [2022-11-02 21:04:49,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:49,410 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 399 transitions. [2022-11-02 21:04:49,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 399 transitions. [2022-11-02 21:04:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:49,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:49,411 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:49,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:49,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:49,628 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:49,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:49,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2052114241, now seen corresponding path program 1 times [2022-11-02 21:04:49,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:49,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615706591] [2022-11-02 21:04:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:49,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:49,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:49,630 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-02 21:04:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:50,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 21:04:50,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:50,637 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:50,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:50,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:50,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615706591] [2022-11-02 21:04:50,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615706591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:50,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:50,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:50,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429351930] [2022-11-02 21:04:50,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:50,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:50,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:50,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:50,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:50,640 INFO L87 Difference]: Start difference. First operand 289 states and 399 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:51,311 INFO L93 Difference]: Finished difference Result 918 states and 1328 transitions. [2022-11-02 21:04:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:04:51,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:51,315 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:04:51,315 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:04:51,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:51,316 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 1425 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1425 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:51,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1425 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:51,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:04:51,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 293. [2022-11-02 21:04:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 292 states have (on average 1.3835616438356164) internal successors, (404), 292 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 404 transitions. [2022-11-02 21:04:51,325 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 404 transitions. Word has length 156 [2022-11-02 21:04:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:51,326 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 404 transitions. [2022-11-02 21:04:51,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 404 transitions. [2022-11-02 21:04:51,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:51,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:51,327 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:51,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:51,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:51,538 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:51,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:51,539 INFO L85 PathProgramCache]: Analyzing trace with hash 23528131, now seen corresponding path program 1 times [2022-11-02 21:04:51,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:51,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118042470] [2022-11-02 21:04:51,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:51,540 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:51,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:51,540 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:51,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-02 21:04:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:52,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:04:52,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:52,652 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:52,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:52,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:52,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118042470] [2022-11-02 21:04:52,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118042470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:52,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:52,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:04:52,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272479555] [2022-11-02 21:04:52,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:52,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:04:52,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:52,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:04:52,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:04:52,654 INFO L87 Difference]: Start difference. First operand 293 states and 404 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:53,230 INFO L93 Difference]: Finished difference Result 904 states and 1306 transitions. [2022-11-02 21:04:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:04:53,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:53,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:53,233 INFO L225 Difference]: With dead ends: 904 [2022-11-02 21:04:53,233 INFO L226 Difference]: Without dead ends: 773 [2022-11-02 21:04:53,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:04:53,234 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1208 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:53,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1720 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-11-02 21:04:53,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 295. [2022-11-02 21:04:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.380952380952381) internal successors, (406), 294 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 406 transitions. [2022-11-02 21:04:53,244 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 406 transitions. Word has length 156 [2022-11-02 21:04:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:53,244 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 406 transitions. [2022-11-02 21:04:53,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:53,244 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 406 transitions. [2022-11-02 21:04:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:53,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:53,246 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:53,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:53,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:53,462 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:53,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:53,462 INFO L85 PathProgramCache]: Analyzing trace with hash 8009413, now seen corresponding path program 1 times [2022-11-02 21:04:53,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:53,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969393250] [2022-11-02 21:04:53,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:53,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:53,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:53,464 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:53,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-02 21:04:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:53,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:04:53,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:54,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:54,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:54,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969393250] [2022-11-02 21:04:54,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [969393250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:54,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:54,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:54,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924096592] [2022-11-02 21:04:54,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:54,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:54,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:54,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:54,457 INFO L87 Difference]: Start difference. First operand 295 states and 406 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:55,226 INFO L93 Difference]: Finished difference Result 922 states and 1332 transitions. [2022-11-02 21:04:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:04:55,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:55,231 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:04:55,231 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:04:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:55,232 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1416 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:55,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:04:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:04:55,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 297. [2022-11-02 21:04:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.3783783783783783) internal successors, (408), 296 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 408 transitions. [2022-11-02 21:04:55,243 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 408 transitions. Word has length 156 [2022-11-02 21:04:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:55,243 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 408 transitions. [2022-11-02 21:04:55,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,244 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 408 transitions. [2022-11-02 21:04:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:55,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:55,245 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:55,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:55,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:55,464 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:55,465 INFO L85 PathProgramCache]: Analyzing trace with hash -345078969, now seen corresponding path program 1 times [2022-11-02 21:04:55,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:55,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746987234] [2022-11-02 21:04:55,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:55,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:55,467 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-02 21:04:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:55,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:04:55,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:56,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:56,556 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:56,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746987234] [2022-11-02 21:04:56,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746987234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:56,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:56,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:56,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078540447] [2022-11-02 21:04:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:56,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:56,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:56,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:56,558 INFO L87 Difference]: Start difference. First operand 297 states and 408 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:57,231 INFO L93 Difference]: Finished difference Result 920 states and 1328 transitions. [2022-11-02 21:04:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:04:57,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:57,235 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:04:57,235 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:04:57,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:57,236 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 1404 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 2131 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:04:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 299. [2022-11-02 21:04:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 1.3758389261744965) internal successors, (410), 298 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 410 transitions. [2022-11-02 21:04:57,245 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 410 transitions. Word has length 156 [2022-11-02 21:04:57,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:57,245 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 410 transitions. [2022-11-02 21:04:57,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,246 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 410 transitions. [2022-11-02 21:04:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:57,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:57,247 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:57,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:57,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:57,460 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:57,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash 548407369, now seen corresponding path program 1 times [2022-11-02 21:04:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:57,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187225568] [2022-11-02 21:04:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:57,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:57,462 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-02 21:04:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:57,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:04:57,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:04:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:58,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:04:58,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:04:58,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187225568] [2022-11-02 21:04:58,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187225568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:58,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:58,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:04:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816435310] [2022-11-02 21:04:58,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:58,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:04:58,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:04:58,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:04:58,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:04:58,525 INFO L87 Difference]: Start difference. First operand 299 states and 410 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:04:59,212 INFO L93 Difference]: Finished difference Result 918 states and 1324 transitions. [2022-11-02 21:04:59,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:04:59,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:04:59,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:04:59,215 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:04:59,216 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:04:59,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:04:59,217 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 1392 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:04:59,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:04:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:04:59,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 301. [2022-11-02 21:04:59,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.3733333333333333) internal successors, (412), 300 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) [2022-11-02 21:04:59,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 412 transitions. [2022-11-02 21:04:59,225 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 412 transitions. Word has length 156 [2022-11-02 21:04:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:04:59,226 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 412 transitions. [2022-11-02 21:04:59,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 412 transitions. [2022-11-02 21:04:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:04:59,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:04:59,227 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:59,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-02 21:04:59,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:04:59,443 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:04:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:59,444 INFO L85 PathProgramCache]: Analyzing trace with hash -348985909, now seen corresponding path program 1 times [2022-11-02 21:04:59,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:04:59,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536363279] [2022-11-02 21:04:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:59,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:04:59,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:04:59,445 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:04:59,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-02 21:04:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:59,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:04:59,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:00,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:00,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:00,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536363279] [2022-11-02 21:05:00,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536363279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:00,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:00,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:00,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286302008] [2022-11-02 21:05:00,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:00,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:00,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:00,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:00,397 INFO L87 Difference]: Start difference. First operand 301 states and 412 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:01,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:01,044 INFO L93 Difference]: Finished difference Result 916 states and 1320 transitions. [2022-11-02 21:05:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:05:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:01,049 INFO L225 Difference]: With dead ends: 916 [2022-11-02 21:05:01,049 INFO L226 Difference]: Without dead ends: 785 [2022-11-02 21:05:01,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:05:01,050 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1380 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:01,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 2133 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:05:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-11-02 21:05:01,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 303. [2022-11-02 21:05:01,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.3708609271523178) internal successors, (414), 302 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:01,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 414 transitions. [2022-11-02 21:05:01,059 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 414 transitions. Word has length 156 [2022-11-02 21:05:01,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:01,060 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 414 transitions. [2022-11-02 21:05:01,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:01,060 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 414 transitions. [2022-11-02 21:05:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:01,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:01,061 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:01,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:01,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:01,277 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash 74660813, now seen corresponding path program 1 times [2022-11-02 21:05:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:01,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555470450] [2022-11-02 21:05:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:01,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:01,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:01,281 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:01,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-02 21:05:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:01,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:01,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:02,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:02,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:02,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:02,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555470450] [2022-11-02 21:05:02,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555470450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:02,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:02,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:05:02,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150876094] [2022-11-02 21:05:02,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:02,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:05:02,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:02,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:05:02,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:05:02,320 INFO L87 Difference]: Start difference. First operand 303 states and 414 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:03,079 INFO L93 Difference]: Finished difference Result 920 states and 1325 transitions. [2022-11-02 21:05:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:05:03,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:03,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:03,081 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:05:03,081 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:05:03,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:03,082 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1560 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:03,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 2549 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:05:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 307. [2022-11-02 21:05:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.369281045751634) internal successors, (419), 306 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2022-11-02 21:05:03,091 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 156 [2022-11-02 21:05:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:03,091 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2022-11-02 21:05:03,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2022-11-02 21:05:03,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:03,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:03,093 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:03,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:03,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:03,309 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash 734192335, now seen corresponding path program 1 times [2022-11-02 21:05:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:03,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482880255] [2022-11-02 21:05:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:03,311 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:03,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:03,312 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:03,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-02 21:05:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:03,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:03,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:04,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:04,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:04,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482880255] [2022-11-02 21:05:04,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482880255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:04,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:04,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 21:05:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451026256] [2022-11-02 21:05:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:04,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 21:05:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 21:05:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:05:04,309 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:05,140 INFO L93 Difference]: Finished difference Result 918 states and 1321 transitions. [2022-11-02 21:05:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 21:05:05,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:05,146 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:05:05,146 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:05:05,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:05,147 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1547 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:05,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 2550 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:05,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:05:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 309. [2022-11-02 21:05:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.3668831168831168) internal successors, (421), 308 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 421 transitions. [2022-11-02 21:05:05,156 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 421 transitions. Word has length 156 [2022-11-02 21:05:05,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:05,157 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 421 transitions. [2022-11-02 21:05:05,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:05,157 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 421 transitions. [2022-11-02 21:05:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:05,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:05,159 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:05,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2022-11-02 21:05:05,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:05,378 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:05,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:05,379 INFO L85 PathProgramCache]: Analyzing trace with hash -109813167, now seen corresponding path program 1 times [2022-11-02 21:05:05,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:05,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186915063] [2022-11-02 21:05:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:05,380 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:05,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:05,381 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:05,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-02 21:05:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:05,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:05,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:06,460 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:06,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:06,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186915063] [2022-11-02 21:05:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186915063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:06,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:06,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 21:05:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826914173] [2022-11-02 21:05:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:06,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:05:06,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:05:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:05:06,462 INFO L87 Difference]: Start difference. First operand 309 states and 421 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:07,066 INFO L93 Difference]: Finished difference Result 888 states and 1275 transitions. [2022-11-02 21:05:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:05:07,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:07,068 INFO L225 Difference]: With dead ends: 888 [2022-11-02 21:05:07,068 INFO L226 Difference]: Without dead ends: 757 [2022-11-02 21:05:07,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:05:07,069 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1123 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:07,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 1728 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-02 21:05:07,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-11-02 21:05:07,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 311. [2022-11-02 21:05:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.364516129032258) internal successors, (423), 310 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 423 transitions. [2022-11-02 21:05:07,080 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 423 transitions. Word has length 156 [2022-11-02 21:05:07,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:07,081 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 423 transitions. [2022-11-02 21:05:07,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,082 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 423 transitions. [2022-11-02 21:05:07,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:07,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:07,083 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:07,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:07,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:07,298 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash -182199725, now seen corresponding path program 1 times [2022-11-02 21:05:07,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:07,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028312917] [2022-11-02 21:05:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:07,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:07,301 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:07,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-02 21:05:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:07,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:07,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:08,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:08,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028312917] [2022-11-02 21:05:08,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028312917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:08,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:08,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:08,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148080834] [2022-11-02 21:05:08,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:08,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:08,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:08,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:08,587 INFO L87 Difference]: Start difference. First operand 311 states and 423 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:09,317 INFO L93 Difference]: Finished difference Result 922 states and 1325 transitions. [2022-11-02 21:05:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:05:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:09,322 INFO L225 Difference]: With dead ends: 922 [2022-11-02 21:05:09,322 INFO L226 Difference]: Without dead ends: 791 [2022-11-02 21:05:09,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:05:09,323 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1355 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:09,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 2130 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-02 21:05:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 313. [2022-11-02 21:05:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.3621794871794872) internal successors, (425), 312 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:09,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 425 transitions. [2022-11-02 21:05:09,332 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 425 transitions. Word has length 156 [2022-11-02 21:05:09,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:09,333 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 425 transitions. [2022-11-02 21:05:09,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 425 transitions. [2022-11-02 21:05:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:09,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:09,334 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:09,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:09,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:09,535 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:09,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:09,535 INFO L85 PathProgramCache]: Analyzing trace with hash 519400149, now seen corresponding path program 1 times [2022-11-02 21:05:09,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:09,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582946430] [2022-11-02 21:05:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:09,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:09,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:09,538 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:09,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-02 21:05:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:09,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:09,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:10,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:10,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:10,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582946430] [2022-11-02 21:05:10,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582946430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:10,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:10,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711695853] [2022-11-02 21:05:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:10,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:10,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:10,742 INFO L87 Difference]: Start difference. First operand 313 states and 425 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:11,502 INFO L93 Difference]: Finished difference Result 920 states and 1321 transitions. [2022-11-02 21:05:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:05:11,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:11,504 INFO L225 Difference]: With dead ends: 920 [2022-11-02 21:05:11,505 INFO L226 Difference]: Without dead ends: 789 [2022-11-02 21:05:11,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:05:11,505 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1343 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:11,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 2131 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-02 21:05:11,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 315. [2022-11-02 21:05:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.3598726114649682) internal successors, (427), 314 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 427 transitions. [2022-11-02 21:05:11,511 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 427 transitions. Word has length 156 [2022-11-02 21:05:11,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:11,512 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 427 transitions. [2022-11-02 21:05:11,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:11,512 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 427 transitions. [2022-11-02 21:05:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:11,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:11,514 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:11,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (36)] Ended with exit code 0 [2022-11-02 21:05:11,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:11,726 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1905603543, now seen corresponding path program 1 times [2022-11-02 21:05:11,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:11,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95972255] [2022-11-02 21:05:11,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:11,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:11,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:11,729 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-02 21:05:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:12,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-02 21:05:12,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:13,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:05:13,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:13,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95972255] [2022-11-02 21:05:13,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95972255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:13,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:13,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812875746] [2022-11-02 21:05:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:13,056 INFO L87 Difference]: Start difference. First operand 315 states and 427 transitions. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:13,872 INFO L93 Difference]: Finished difference Result 918 states and 1317 transitions. [2022-11-02 21:05:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:05:13,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:13,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:13,878 INFO L225 Difference]: With dead ends: 918 [2022-11-02 21:05:13,878 INFO L226 Difference]: Without dead ends: 787 [2022-11-02 21:05:13,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:05:13,879 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1331 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:13,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 2132 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-02 21:05:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-11-02 21:05:13,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 317. [2022-11-02 21:05:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 316 states have (on average 1.3575949367088607) internal successors, (429), 316 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 429 transitions. [2022-11-02 21:05:13,889 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 429 transitions. Word has length 156 [2022-11-02 21:05:13,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:13,890 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 429 transitions. [2022-11-02 21:05:13,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:13,891 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 429 transitions. [2022-11-02 21:05:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:13,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:13,892 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:13,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:14,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:14,101 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:14,101 INFO L85 PathProgramCache]: Analyzing trace with hash -466135719, now seen corresponding path program 1 times [2022-11-02 21:05:14,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:14,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94202116] [2022-11-02 21:05:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:14,103 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:14,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:14,104 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:14,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-02 21:05:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:14,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:05:14,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:15,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:16,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:16,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94202116] [2022-11-02 21:05:16,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94202116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:16,073 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:16,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-02 21:05:16,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471108364] [2022-11-02 21:05:16,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:16,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-02 21:05:16,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:16,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-02 21:05:16,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2022-11-02 21:05:16,078 INFO L87 Difference]: Start difference. First operand 317 states and 429 transitions. Second operand has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:17,046 INFO L93 Difference]: Finished difference Result 1251 states and 1773 transitions. [2022-11-02 21:05:17,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-02 21:05:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:17,049 INFO L225 Difference]: With dead ends: 1251 [2022-11-02 21:05:17,049 INFO L226 Difference]: Without dead ends: 1120 [2022-11-02 21:05:17,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2022-11-02 21:05:17,051 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2621 mSDsluCounter, 6882 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2621 SdHoareTripleChecker+Valid, 7493 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 203 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:17,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2621 Valid, 7493 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 140 Invalid, 0 Unknown, 203 Unchecked, 0.3s Time] [2022-11-02 21:05:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2022-11-02 21:05:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 534. [2022-11-02 21:05:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3733583489681052) internal successors, (732), 533 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 732 transitions. [2022-11-02 21:05:17,067 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 732 transitions. Word has length 156 [2022-11-02 21:05:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:17,067 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 732 transitions. [2022-11-02 21:05:17,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.666666666666666) internal successors, (287), 21 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 732 transitions. [2022-11-02 21:05:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:17,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:17,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:17,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:17,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:17,290 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:17,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:17,290 INFO L85 PathProgramCache]: Analyzing trace with hash -600149225, now seen corresponding path program 1 times [2022-11-02 21:05:17,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1784827702] [2022-11-02 21:05:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:17,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:17,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:17,293 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:17,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-02 21:05:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:17,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:05:17,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:18,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:19,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:19,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1784827702] [2022-11-02 21:05:19,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1784827702] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:19,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:19,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-02 21:05:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815984761] [2022-11-02 21:05:19,370 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:19,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-02 21:05:19,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:19,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-02 21:05:19,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-11-02 21:05:19,372 INFO L87 Difference]: Start difference. First operand 534 states and 732 transitions. Second operand has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:20,529 INFO L93 Difference]: Finished difference Result 1353 states and 1927 transitions. [2022-11-02 21:05:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-02 21:05:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:20,532 INFO L225 Difference]: With dead ends: 1353 [2022-11-02 21:05:20,532 INFO L226 Difference]: Without dead ends: 1093 [2022-11-02 21:05:20,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=548, Invalid=2104, Unknown=0, NotChecked=0, Total=2652 [2022-11-02 21:05:20,535 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 2607 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2607 SdHoareTripleChecker+Valid, 7230 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:20,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2607 Valid, 7230 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 178 Invalid, 0 Unknown, 263 Unchecked, 0.3s Time] [2022-11-02 21:05:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2022-11-02 21:05:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 534. [2022-11-02 21:05:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3714821763602252) internal successors, (731), 533 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 731 transitions. [2022-11-02 21:05:20,550 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 731 transitions. Word has length 156 [2022-11-02 21:05:20,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:20,550 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 731 transitions. [2022-11-02 21:05:20,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.565217391304348) internal successors, (289), 23 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,551 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 731 transitions. [2022-11-02 21:05:20,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:20,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:20,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:20,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-02 21:05:20,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:20,767 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:20,767 INFO L85 PathProgramCache]: Analyzing trace with hash -381294507, now seen corresponding path program 1 times [2022-11-02 21:05:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:20,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197659313] [2022-11-02 21:05:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:20,769 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:20,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:20,770 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:20,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-02 21:05:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:21,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 21:05:21,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:21,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:22,874 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:22,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:22,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197659313] [2022-11-02 21:05:22,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197659313] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:22,875 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:22,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2022-11-02 21:05:22,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670134993] [2022-11-02 21:05:22,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:22,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 21:05:22,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:22,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 21:05:22,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:05:22,877 INFO L87 Difference]: Start difference. First operand 534 states and 731 transitions. Second operand has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:24,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:24,287 INFO L93 Difference]: Finished difference Result 1378 states and 1958 transitions. [2022-11-02 21:05:24,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-02 21:05:24,287 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:24,291 INFO L225 Difference]: With dead ends: 1378 [2022-11-02 21:05:24,291 INFO L226 Difference]: Without dead ends: 1118 [2022-11-02 21:05:24,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=676, Invalid=2294, Unknown=0, NotChecked=0, Total=2970 [2022-11-02 21:05:24,294 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 4274 mSDsluCounter, 8733 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 9343 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 308 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:24,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4274 Valid, 9343 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 253 Invalid, 0 Unknown, 308 Unchecked, 0.4s Time] [2022-11-02 21:05:24,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-11-02 21:05:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 534. [2022-11-02 21:05:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3696060037523452) internal successors, (730), 533 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 730 transitions. [2022-11-02 21:05:24,309 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 730 transitions. Word has length 156 [2022-11-02 21:05:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:24,309 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 730 transitions. [2022-11-02 21:05:24,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 730 transitions. [2022-11-02 21:05:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:24,311 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:24,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:24,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:24,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:24,528 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1198942957, now seen corresponding path program 1 times [2022-11-02 21:05:24,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:24,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180768225] [2022-11-02 21:05:24,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:24,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:24,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:24,531 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:24,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-02 21:05:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:24,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-02 21:05:24,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:26,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:31,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:31,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180768225] [2022-11-02 21:05:31,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180768225] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:31,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:31,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2022-11-02 21:05:31,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771290483] [2022-11-02 21:05:31,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:31,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 21:05:31,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:31,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 21:05:31,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-11-02 21:05:31,966 INFO L87 Difference]: Start difference. First operand 534 states and 730 transitions. Second operand has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:33,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:33,298 INFO L93 Difference]: Finished difference Result 1323 states and 1879 transitions. [2022-11-02 21:05:33,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-02 21:05:33,299 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:33,300 INFO L225 Difference]: With dead ends: 1323 [2022-11-02 21:05:33,301 INFO L226 Difference]: Without dead ends: 1063 [2022-11-02 21:05:33,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=361, Invalid=1619, Unknown=0, NotChecked=0, Total=1980 [2022-11-02 21:05:33,302 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 2183 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1140 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:33,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 4760 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 333 Invalid, 0 Unknown, 1140 Unchecked, 0.5s Time] [2022-11-02 21:05:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-11-02 21:05:33,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 534. [2022-11-02 21:05:33,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.3677298311444652) internal successors, (729), 533 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:33,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 729 transitions. [2022-11-02 21:05:33,313 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 729 transitions. Word has length 156 [2022-11-02 21:05:33,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:33,313 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 729 transitions. [2022-11-02 21:05:33,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.045454545454545) internal successors, (287), 22 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:33,313 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 729 transitions. [2022-11-02 21:05:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:33,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:33,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:33,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:33,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:33,530 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:33,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:33,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1101879633, now seen corresponding path program 1 times [2022-11-02 21:05:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:33,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918270142] [2022-11-02 21:05:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:33,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:33,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:33,532 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:33,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-02 21:05:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:33,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:34,380 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:34,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:34,695 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:34,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918270142] [2022-11-02 21:05:34,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918270142] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:34,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:34,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-02 21:05:34,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537175879] [2022-11-02 21:05:34,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:34,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 21:05:34,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:34,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 21:05:34,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-02 21:05:34,697 INFO L87 Difference]: Start difference. First operand 534 states and 729 transitions. Second operand has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:35,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:35,221 INFO L93 Difference]: Finished difference Result 1844 states and 2617 transitions. [2022-11-02 21:05:35,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:05:35,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:35,224 INFO L225 Difference]: With dead ends: 1844 [2022-11-02 21:05:35,224 INFO L226 Difference]: Without dead ends: 1584 [2022-11-02 21:05:35,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:05:35,225 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1703 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 180 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:35,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 1946 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 266 Invalid, 0 Unknown, 180 Unchecked, 0.4s Time] [2022-11-02 21:05:35,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2022-11-02 21:05:35,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 994. [2022-11-02 21:05:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3776435045317221) internal successors, (1368), 993 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:35,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1368 transitions. [2022-11-02 21:05:35,250 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1368 transitions. Word has length 156 [2022-11-02 21:05:35,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:35,251 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1368 transitions. [2022-11-02 21:05:35,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 25.363636363636363) internal successors, (279), 11 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1368 transitions. [2022-11-02 21:05:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:35,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:35,253 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:35,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:35,466 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash 80811279, now seen corresponding path program 1 times [2022-11-02 21:05:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:35,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091796458] [2022-11-02 21:05:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:35,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:35,469 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:35,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-02 21:05:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:35,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:36,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:36,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:36,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091796458] [2022-11-02 21:05:36,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091796458] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:36,595 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:36,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:05:36,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107532335] [2022-11-02 21:05:36,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:36,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:05:36,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:36,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:05:36,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:05:36,597 INFO L87 Difference]: Start difference. First operand 994 states and 1368 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:37,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:37,195 INFO L93 Difference]: Finished difference Result 2098 states and 2989 transitions. [2022-11-02 21:05:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:05:37,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:37,217 INFO L225 Difference]: With dead ends: 2098 [2022-11-02 21:05:37,217 INFO L226 Difference]: Without dead ends: 1580 [2022-11-02 21:05:37,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:05:37,222 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1909 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 185 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:37,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 2342 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 298 Invalid, 0 Unknown, 185 Unchecked, 0.5s Time] [2022-11-02 21:05:37,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-11-02 21:05:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 994. [2022-11-02 21:05:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3756294058408862) internal successors, (1366), 993 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:37,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1366 transitions. [2022-11-02 21:05:37,253 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1366 transitions. Word has length 156 [2022-11-02 21:05:37,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:37,253 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1366 transitions. [2022-11-02 21:05:37,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:37,254 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1366 transitions. [2022-11-02 21:05:37,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:37,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:37,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:37,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:37,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:37,470 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:37,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:37,471 INFO L85 PathProgramCache]: Analyzing trace with hash -930305971, now seen corresponding path program 1 times [2022-11-02 21:05:37,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:37,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373967887] [2022-11-02 21:05:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:37,472 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:37,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:37,473 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:37,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-02 21:05:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:37,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:37,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:38,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:38,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:38,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373967887] [2022-11-02 21:05:38,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373967887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:38,859 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:38,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:05:38,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860603951] [2022-11-02 21:05:38,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:38,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:05:38,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:38,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:05:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:05:38,861 INFO L87 Difference]: Start difference. First operand 994 states and 1366 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:39,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:39,436 INFO L93 Difference]: Finished difference Result 2002 states and 2845 transitions. [2022-11-02 21:05:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:05:39,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:39,452 INFO L225 Difference]: With dead ends: 2002 [2022-11-02 21:05:39,452 INFO L226 Difference]: Without dead ends: 1484 [2022-11-02 21:05:39,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:05:39,459 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 1840 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:39,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2433 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 309 Invalid, 0 Unknown, 123 Unchecked, 0.4s Time] [2022-11-02 21:05:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-11-02 21:05:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 994. [2022-11-02 21:05:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3736153071500503) internal successors, (1364), 993 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:39,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1364 transitions. [2022-11-02 21:05:39,482 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1364 transitions. Word has length 156 [2022-11-02 21:05:39,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:39,485 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1364 transitions. [2022-11-02 21:05:39,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1364 transitions. [2022-11-02 21:05:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:39,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:39,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:39,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:39,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:39,701 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:39,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:39,702 INFO L85 PathProgramCache]: Analyzing trace with hash -672140533, now seen corresponding path program 1 times [2022-11-02 21:05:39,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:39,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203009435] [2022-11-02 21:05:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:39,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:39,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:39,705 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:39,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-02 21:05:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:40,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:40,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:40,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:40,990 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:40,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203009435] [2022-11-02 21:05:40,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203009435] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:40,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:40,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:05:40,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838897171] [2022-11-02 21:05:40,991 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:40,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:05:40,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:40,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:05:40,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:05:40,992 INFO L87 Difference]: Start difference. First operand 994 states and 1364 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:41,484 INFO L93 Difference]: Finished difference Result 1956 states and 2773 transitions. [2022-11-02 21:05:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:05:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:41,486 INFO L225 Difference]: With dead ends: 1956 [2022-11-02 21:05:41,487 INFO L226 Difference]: Without dead ends: 1438 [2022-11-02 21:05:41,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:05:41,488 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1471 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 207 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:41,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 2028 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 258 Invalid, 0 Unknown, 207 Unchecked, 0.4s Time] [2022-11-02 21:05:41,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-11-02 21:05:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 994. [2022-11-02 21:05:41,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3716012084592144) internal successors, (1362), 993 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1362 transitions. [2022-11-02 21:05:41,505 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1362 transitions. Word has length 156 [2022-11-02 21:05:41,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:41,505 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1362 transitions. [2022-11-02 21:05:41,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1362 transitions. [2022-11-02 21:05:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:41,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:41,507 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:41,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:41,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:41,723 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:41,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:41,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1481487159, now seen corresponding path program 1 times [2022-11-02 21:05:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:41,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149491666] [2022-11-02 21:05:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:41,726 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:41,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-02 21:05:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:42,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:42,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:42,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:43,083 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:43,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:43,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149491666] [2022-11-02 21:05:43,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149491666] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:43,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:43,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:05:43,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466499031] [2022-11-02 21:05:43,084 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:43,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:05:43,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:43,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:05:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:05:43,086 INFO L87 Difference]: Start difference. First operand 994 states and 1362 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:43,793 INFO L93 Difference]: Finished difference Result 2082 states and 2953 transitions. [2022-11-02 21:05:43,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:05:43,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:43,796 INFO L225 Difference]: With dead ends: 2082 [2022-11-02 21:05:43,796 INFO L226 Difference]: Without dead ends: 1564 [2022-11-02 21:05:43,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:05:43,797 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1883 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 160 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:43,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 2518 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 341 Invalid, 0 Unknown, 160 Unchecked, 0.5s Time] [2022-11-02 21:05:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-11-02 21:05:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 994. [2022-11-02 21:05:43,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3695871097683787) internal successors, (1360), 993 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:43,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1360 transitions. [2022-11-02 21:05:43,835 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1360 transitions. Word has length 156 [2022-11-02 21:05:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:43,836 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1360 transitions. [2022-11-02 21:05:43,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1360 transitions. [2022-11-02 21:05:43,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:43,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:43,838 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:43,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:44,054 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:44,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1424228857, now seen corresponding path program 1 times [2022-11-02 21:05:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:44,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320685549] [2022-11-02 21:05:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:44,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:44,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:44,057 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:44,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-02 21:05:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:44,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 21:05:44,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:45,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-02 21:05:45,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:05:45,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320685549] [2022-11-02 21:05:45,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320685549] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:45,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:05:45,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-11-02 21:05:45,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824468470] [2022-11-02 21:05:45,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:45,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:05:45,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 21:05:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:05:45,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:05:45,454 INFO L87 Difference]: Start difference. First operand 994 states and 1360 transitions. Second operand has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:46,087 INFO L93 Difference]: Finished difference Result 1956 states and 2765 transitions. [2022-11-02 21:05:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 21:05:46,088 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 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 156 [2022-11-02 21:05:46,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:46,090 INFO L225 Difference]: With dead ends: 1956 [2022-11-02 21:05:46,090 INFO L226 Difference]: Without dead ends: 1438 [2022-11-02 21:05:46,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 299 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2022-11-02 21:05:46,092 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1295 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 216 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:46,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 2152 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 261 Invalid, 0 Unknown, 216 Unchecked, 0.5s Time] [2022-11-02 21:05:46,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2022-11-02 21:05:46,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 994. [2022-11-02 21:05:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 993 states have (on average 1.3675730110775428) internal successors, (1358), 993 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1358 transitions. [2022-11-02 21:05:46,116 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1358 transitions. Word has length 156 [2022-11-02 21:05:46,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:46,116 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1358 transitions. [2022-11-02 21:05:46,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 23.25) internal successors, (279), 12 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1358 transitions. [2022-11-02 21:05:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-02 21:05:46,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:46,119 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:46,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:46,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:05:46,333 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:46,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1424169275, now seen corresponding path program 1 times [2022-11-02 21:05:46,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 21:05:46,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349521824] [2022-11-02 21:05:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:46,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 21:05:46,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 21:05:46,336 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 21:05:46,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-02 21:05:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:46,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-02 21:05:46,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:59,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:28,651 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-02 21:06:28,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 21:06:28,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-02 21:06:28,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349521824] [2022-11-02 21:06:28,653 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 21:06:28,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (48)] Ended with exit code 0 [2022-11-02 21:06:28,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 21:06:28,854 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:894) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 45 more [2022-11-02 21:06:28,859 INFO L158 Benchmark]: Toolchain (without parser) took 127222.83ms. Allocated memory was 75.5MB in the beginning and 394.3MB in the end (delta: 318.8MB). Free memory was 56.1MB in the beginning and 252.8MB in the end (delta: -196.7MB). Peak memory consumption was 122.9MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,859 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:06:28,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.44ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 38.7MB in the end (delta: 17.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.94ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 31.6MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,860 INFO L158 Benchmark]: Boogie Preprocessor took 121.83ms. Allocated memory is still 75.5MB. Free memory was 31.6MB in the beginning and 49.5MB in the end (delta: -17.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,860 INFO L158 Benchmark]: RCFGBuilder took 1329.76ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 56.4MB in the end (delta: -6.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,860 INFO L158 Benchmark]: TraceAbstraction took 125033.66ms. Allocated memory was 98.6MB in the beginning and 394.3MB in the end (delta: 295.7MB). Free memory was 55.8MB in the beginning and 252.8MB in the end (delta: -197.0MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. [2022-11-02 21:06:28,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.44ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 38.7MB in the end (delta: 17.1MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 123.94ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 31.6MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.83ms. Allocated memory is still 75.5MB. Free memory was 31.6MB in the beginning and 49.5MB in the end (delta: -17.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1329.76ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 49.5MB in the beginning and 56.4MB in the end (delta: -6.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * TraceAbstraction took 125033.66ms. Allocated memory was 98.6MB in the beginning and 394.3MB in the end (delta: 295.7MB). Free memory was 55.8MB in the beginning and 252.8MB in the end (delta: -197.0MB). Peak memory consumption was 99.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21e94fa8-4961-4736-893d-1313e704f1b1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")