./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN --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 32bit --witnessprinter.graph.data.programhash ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- 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-6b4ec56 [2022-11-20 11:02:09,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:02:09,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:02:09,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:02:09,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:02:09,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:02:09,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:02:09,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:02:09,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:02:09,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:02:09,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:02:09,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:02:09,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:02:09,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:02:09,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:02:09,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:02:09,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:02:09,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:02:09,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:02:09,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:02:09,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:02:09,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:02:09,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:02:09,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:02:09,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:02:09,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:02:09,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:02:09,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:02:09,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:02:09,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:02:09,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:02:09,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:02:09,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:02:09,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:02:09,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:02:09,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:02:09,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:02:09,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:02:09,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:02:09,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:02:09,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:02:09,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:02:09,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:02:09,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:02:09,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:02:09,291 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:02:09,292 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:02:09,292 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:02:09,293 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:02:09,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:02:09,294 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:02:09,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:02:09,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:02:09,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:02:09,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:02:09,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:02:09,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:02:09,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:02:09,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:02:09,296 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:02:09,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:02:09,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:02:09,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:02:09,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:02:09,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:02:09,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:02:09,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:02:09,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:02:09,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:02:09,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:02:09,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:02:09,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:02:09,300 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:02:09,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:02:09,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:02:09,301 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_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2022-11-20 11:02:09,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:02:09,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:02:09,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:02:09,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:02:09,753 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:02:09,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-11-20 11:02:13,777 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:02:14,137 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:02:14,140 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-11-20 11:02:14,159 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/data/40bf831bc/3c0bea3f7fc44d2198abd2d2911880e7/FLAGe4f2f8072 [2022-11-20 11:02:14,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/data/40bf831bc/3c0bea3f7fc44d2198abd2d2911880e7 [2022-11-20 11:02:14,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:02:14,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:02:14,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:02:14,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:02:14,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:02:14,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db913b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14, skipping insertion in model container [2022-11-20 11:02:14,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:02:14,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:02:14,627 WARN L237 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_2d20b095-5094-402a-92b3-f610145e89bf/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-11-20 11:02:14,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:02:14,655 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:02:14,775 WARN L237 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_2d20b095-5094-402a-92b3-f610145e89bf/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-11-20 11:02:14,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:02:14,797 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:02:14,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14 WrapperNode [2022-11-20 11:02:14,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:02:14,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:02:14,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:02:14,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:02:14,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,884 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 497 [2022-11-20 11:02:14,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:02:14,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:02:14,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:02:14,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:02:14,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,940 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:02:14,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:02:14,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:02:14,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:02:14,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (1/1) ... [2022-11-20 11:02:14,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:02:15,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:15,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:02:15,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:02:15,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:02:15,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:02:15,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:02:15,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:02:15,265 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:02:15,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:02:15,325 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-20 11:02:16,243 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-11-20 11:02:16,243 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-11-20 11:02:16,244 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:02:16,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:02:16,265 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:02:16,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16 BoogieIcfgContainer [2022-11-20 11:02:16,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:02:16,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:02:16,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:02:16,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:02:16,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:02:14" (1/3) ... [2022-11-20 11:02:16,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a4df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:02:16, skipping insertion in model container [2022-11-20 11:02:16,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:02:14" (2/3) ... [2022-11-20 11:02:16,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4a4df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:02:16, skipping insertion in model container [2022-11-20 11:02:16,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16" (3/3) ... [2022-11-20 11:02:16,290 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2022-11-20 11:02:16,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:02:16,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:02:16,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:02:16,396 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;@248a3c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:02:16,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:02:16,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 130 states have (on average 1.7307692307692308) internal successors, (225), 131 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 11:02:16,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:16,423 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] [2022-11-20 11:02:16,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:16,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash 260022937, now seen corresponding path program 1 times [2022-11-20 11:02:16,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:16,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344394870] [2022-11-20 11:02:16,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:02:16,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:16,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344394870] [2022-11-20 11:02:16,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344394870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:16,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:16,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:16,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252233438] [2022-11-20 11:02:16,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:16,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:16,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:16,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:16,945 INFO L87 Difference]: Start difference. First operand has 132 states, 130 states have (on average 1.7307692307692308) internal successors, (225), 131 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:17,287 INFO L93 Difference]: Finished difference Result 259 states and 443 transitions. [2022-11-20 11:02:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:17,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2022-11-20 11:02:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:17,309 INFO L225 Difference]: With dead ends: 259 [2022-11-20 11:02:17,309 INFO L226 Difference]: Without dead ends: 119 [2022-11-20 11:02:17,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,322 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 332 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-20 11:02:17,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-20 11:02:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 118 states have (on average 1.5338983050847457) internal successors, (181), 118 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 181 transitions. [2022-11-20 11:02:17,398 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 181 transitions. Word has length 25 [2022-11-20 11:02:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:17,400 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 181 transitions. [2022-11-20 11:02:17,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 181 transitions. [2022-11-20 11:02:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 11:02:17,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:17,406 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 11:02:17,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:02:17,407 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:17,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash 693672153, now seen corresponding path program 1 times [2022-11-20 11:02:17,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:17,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004820085] [2022-11-20 11:02:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:02:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:17,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004820085] [2022-11-20 11:02:17,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004820085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:17,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:17,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:17,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459329794] [2022-11-20 11:02:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:17,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:17,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:17,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:17,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,559 INFO L87 Difference]: Start difference. First operand 119 states and 181 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:17,782 INFO L93 Difference]: Finished difference Result 245 states and 376 transitions. [2022-11-20 11:02:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:17,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-20 11:02:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:17,785 INFO L225 Difference]: With dead ends: 245 [2022-11-20 11:02:17,785 INFO L226 Difference]: Without dead ends: 137 [2022-11-20 11:02:17,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,787 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:17,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 253 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-20 11:02:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-11-20 11:02:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.5112781954887218) internal successors, (201), 133 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 201 transitions. [2022-11-20 11:02:17,802 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 201 transitions. Word has length 37 [2022-11-20 11:02:17,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:17,803 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 201 transitions. [2022-11-20 11:02:17,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,804 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 201 transitions. [2022-11-20 11:02:17,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:02:17,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:17,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-20 11:02:17,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:02:17,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:17,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:17,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2014075552, now seen corresponding path program 1 times [2022-11-20 11:02:17,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:17,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317937632] [2022-11-20 11:02:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:02:17,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:17,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317937632] [2022-11-20 11:02:17,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317937632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:17,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:17,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778209185] [2022-11-20 11:02:17,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:17,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:17,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:17,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,947 INFO L87 Difference]: Start difference. First operand 134 states and 201 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:17,975 INFO L93 Difference]: Finished difference Result 283 states and 420 transitions. [2022-11-20 11:02:17,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:17,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 51 [2022-11-20 11:02:17,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:17,977 INFO L225 Difference]: With dead ends: 283 [2022-11-20 11:02:17,978 INFO L226 Difference]: Without dead ends: 160 [2022-11-20 11:02:17,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:17,981 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 21 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:17,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 331 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-20 11:02:17,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-20 11:02:17,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.471698113207547) internal successors, (234), 159 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 234 transitions. [2022-11-20 11:02:17,996 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 234 transitions. Word has length 51 [2022-11-20 11:02:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:17,997 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 234 transitions. [2022-11-20 11:02:17,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 234 transitions. [2022-11-20 11:02:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-20 11:02:18,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:18,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-20 11:02:18,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:02:18,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:18,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:18,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1880062046, now seen corresponding path program 1 times [2022-11-20 11:02:18,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:18,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690420087] [2022-11-20 11:02:18,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:18,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:02:18,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:18,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690420087] [2022-11-20 11:02:18,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690420087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:18,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964054725] [2022-11-20 11:02:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:18,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:18,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:18,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,083 INFO L87 Difference]: Start difference. First operand 160 states and 234 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:18,279 INFO L93 Difference]: Finished difference Result 304 states and 455 transitions. [2022-11-20 11:02:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 51 [2022-11-20 11:02:18,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:18,284 INFO L225 Difference]: With dead ends: 304 [2022-11-20 11:02:18,284 INFO L226 Difference]: Without dead ends: 181 [2022-11-20 11:02:18,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,301 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 16 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:18,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 266 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-20 11:02:18,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2022-11-20 11:02:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4545454545454546) internal successors, (256), 176 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) [2022-11-20 11:02:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2022-11-20 11:02:18,321 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 256 transitions. Word has length 51 [2022-11-20 11:02:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:18,324 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 256 transitions. [2022-11-20 11:02:18,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 256 transitions. [2022-11-20 11:02:18,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 11:02:18,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:18,333 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:18,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:02:18,334 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:18,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:18,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1552359252, now seen corresponding path program 1 times [2022-11-20 11:02:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45238622] [2022-11-20 11:02:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:18,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,512 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-20 11:02:18,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:18,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45238622] [2022-11-20 11:02:18,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45238622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:18,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987755456] [2022-11-20 11:02:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:18,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:18,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,517 INFO L87 Difference]: Start difference. First operand 177 states and 256 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:18,565 INFO L93 Difference]: Finished difference Result 454 states and 668 transitions. [2022-11-20 11:02:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:18,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 70 [2022-11-20 11:02:18,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:18,569 INFO L225 Difference]: With dead ends: 454 [2022-11-20 11:02:18,569 INFO L226 Difference]: Without dead ends: 314 [2022-11-20 11:02:18,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,576 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 132 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:18,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 379 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:18,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-20 11:02:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-11-20 11:02:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.4536741214057507) internal successors, (455), 313 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 455 transitions. [2022-11-20 11:02:18,637 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 455 transitions. Word has length 70 [2022-11-20 11:02:18,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:18,638 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 455 transitions. [2022-11-20 11:02:18,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,639 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 455 transitions. [2022-11-20 11:02:18,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-20 11:02:18,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:18,640 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:18,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:02:18,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:18,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1693805076, now seen corresponding path program 1 times [2022-11-20 11:02:18,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:18,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090486120] [2022-11-20 11:02:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,704 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 11:02:18,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:18,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090486120] [2022-11-20 11:02:18,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090486120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:18,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093503355] [2022-11-20 11:02:18,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:18,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:18,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,707 INFO L87 Difference]: Start difference. First operand 314 states and 455 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:18,739 INFO L93 Difference]: Finished difference Result 612 states and 889 transitions. [2022-11-20 11:02:18,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:18,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-11-20 11:02:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:18,742 INFO L225 Difference]: With dead ends: 612 [2022-11-20 11:02:18,743 INFO L226 Difference]: Without dead ends: 335 [2022-11-20 11:02:18,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,744 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 11 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:18,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 361 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-20 11:02:18,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-11-20 11:02:18,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.4431137724550898) internal successors, (482), 334 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 482 transitions. [2022-11-20 11:02:18,761 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 482 transitions. Word has length 71 [2022-11-20 11:02:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:18,762 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 482 transitions. [2022-11-20 11:02:18,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 482 transitions. [2022-11-20 11:02:18,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 11:02:18,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:18,764 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:18,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:02:18,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash -294414028, now seen corresponding path program 1 times [2022-11-20 11:02:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:18,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401841286] [2022-11-20 11:02:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:18,837 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-20 11:02:18,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:18,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401841286] [2022-11-20 11:02:18,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401841286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:18,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:18,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:18,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972595297] [2022-11-20 11:02:18,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:18,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:18,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:18,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:18,841 INFO L87 Difference]: Start difference. First operand 335 states and 482 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:19,014 INFO L93 Difference]: Finished difference Result 681 states and 998 transitions. [2022-11-20 11:02:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-11-20 11:02:19,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:19,018 INFO L225 Difference]: With dead ends: 681 [2022-11-20 11:02:19,018 INFO L226 Difference]: Without dead ends: 383 [2022-11-20 11:02:19,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,020 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:19,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 271 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:02:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-20 11:02:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 377. [2022-11-20 11:02:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 376 states have (on average 1.4202127659574468) internal successors, (534), 376 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 534 transitions. [2022-11-20 11:02:19,038 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 534 transitions. Word has length 88 [2022-11-20 11:02:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:19,039 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 534 transitions. [2022-11-20 11:02:19,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 534 transitions. [2022-11-20 11:02:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 11:02:19,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:19,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:19,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:02:19,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:19,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1264349868, now seen corresponding path program 1 times [2022-11-20 11:02:19,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:19,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114813818] [2022-11-20 11:02:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:19,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-20 11:02:19,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:19,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114813818] [2022-11-20 11:02:19,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114813818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:19,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:19,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186772569] [2022-11-20 11:02:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,158 INFO L87 Difference]: Start difference. First operand 377 states and 534 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:19,215 INFO L93 Difference]: Finished difference Result 538 states and 767 transitions. [2022-11-20 11:02:19,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 108 [2022-11-20 11:02:19,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:19,220 INFO L225 Difference]: With dead ends: 538 [2022-11-20 11:02:19,220 INFO L226 Difference]: Without dead ends: 536 [2022-11-20 11:02:19,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,221 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 148 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:19,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 321 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-11-20 11:02:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2022-11-20 11:02:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 1.4299065420560748) internal successors, (765), 535 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 765 transitions. [2022-11-20 11:02:19,286 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 765 transitions. Word has length 108 [2022-11-20 11:02:19,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:19,287 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 765 transitions. [2022-11-20 11:02:19,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 765 transitions. [2022-11-20 11:02:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 11:02:19,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:19,291 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 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] [2022-11-20 11:02:19,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:02:19,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1514969078, now seen corresponding path program 1 times [2022-11-20 11:02:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:19,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063433591] [2022-11-20 11:02:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:19,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-20 11:02:19,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063433591] [2022-11-20 11:02:19,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063433591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:19,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:19,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791819841] [2022-11-20 11:02:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:19,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:19,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:19,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,393 INFO L87 Difference]: Start difference. First operand 536 states and 765 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:19,659 INFO L93 Difference]: Finished difference Result 1185 states and 1745 transitions. [2022-11-20 11:02:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:19,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 128 [2022-11-20 11:02:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:19,664 INFO L225 Difference]: With dead ends: 1185 [2022-11-20 11:02:19,664 INFO L226 Difference]: Without dead ends: 683 [2022-11-20 11:02:19,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,668 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:19,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 246 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-20 11:02:19,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 659. [2022-11-20 11:02:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.4635258358662615) internal successors, (963), 658 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 963 transitions. [2022-11-20 11:02:19,700 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 963 transitions. Word has length 128 [2022-11-20 11:02:19,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:19,700 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 963 transitions. [2022-11-20 11:02:19,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 963 transitions. [2022-11-20 11:02:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-20 11:02:19,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:19,704 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 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] [2022-11-20 11:02:19,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:02:19,705 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:19,706 INFO L85 PathProgramCache]: Analyzing trace with hash -219869315, now seen corresponding path program 1 times [2022-11-20 11:02:19,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:19,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245212911] [2022-11-20 11:02:19,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:19,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:19,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-20 11:02:19,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:19,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245212911] [2022-11-20 11:02:19,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245212911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:19,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:19,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220062441] [2022-11-20 11:02:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:19,836 INFO L87 Difference]: Start difference. First operand 659 states and 963 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:20,066 INFO L93 Difference]: Finished difference Result 1559 states and 2344 transitions. [2022-11-20 11:02:20,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:20,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 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 154 [2022-11-20 11:02:20,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:20,072 INFO L225 Difference]: With dead ends: 1559 [2022-11-20 11:02:20,072 INFO L226 Difference]: Without dead ends: 886 [2022-11-20 11:02:20,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:20,075 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 81 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:20,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 225 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-11-20 11:02:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 848. [2022-11-20 11:02:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 1.4344746162927982) internal successors, (1215), 847 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1215 transitions. [2022-11-20 11:02:20,112 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1215 transitions. Word has length 154 [2022-11-20 11:02:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:20,113 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1215 transitions. [2022-11-20 11:02:20,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1215 transitions. [2022-11-20 11:02:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 11:02:20,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:20,117 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:20,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:02:20,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1855970287, now seen corresponding path program 1 times [2022-11-20 11:02:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:20,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671330452] [2022-11-20 11:02:20,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:20,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-20 11:02:20,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:20,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671330452] [2022-11-20 11:02:20,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671330452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:20,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:20,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898272654] [2022-11-20 11:02:20,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:20,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:20,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:20,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:20,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:20,275 INFO L87 Difference]: Start difference. First operand 848 states and 1215 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:20,533 INFO L93 Difference]: Finished difference Result 1815 states and 2621 transitions. [2022-11-20 11:02:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:20,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 175 [2022-11-20 11:02:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:20,540 INFO L225 Difference]: With dead ends: 1815 [2022-11-20 11:02:20,540 INFO L226 Difference]: Without dead ends: 959 [2022-11-20 11:02:20,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:20,543 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 84 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:20,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 221 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-20 11:02:20,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 923. [2022-11-20 11:02:20,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 923 states, 922 states have (on average 1.4219088937093276) internal successors, (1311), 922 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1311 transitions. [2022-11-20 11:02:20,597 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1311 transitions. Word has length 175 [2022-11-20 11:02:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:20,598 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1311 transitions. [2022-11-20 11:02:20,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1311 transitions. [2022-11-20 11:02:20,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 11:02:20,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:20,605 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:20,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:02:20,605 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:20,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:20,606 INFO L85 PathProgramCache]: Analyzing trace with hash -150572132, now seen corresponding path program 1 times [2022-11-20 11:02:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:20,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725725484] [2022-11-20 11:02:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:20,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-20 11:02:20,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:20,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725725484] [2022-11-20 11:02:20,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725725484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:20,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:20,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:20,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45868024] [2022-11-20 11:02:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:20,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:20,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:20,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:20,737 INFO L87 Difference]: Start difference. First operand 923 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:20,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:20,974 INFO L93 Difference]: Finished difference Result 1965 states and 2810 transitions. [2022-11-20 11:02:20,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:20,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 199 [2022-11-20 11:02:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:20,981 INFO L225 Difference]: With dead ends: 1965 [2022-11-20 11:02:20,981 INFO L226 Difference]: Without dead ends: 1040 [2022-11-20 11:02:20,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:20,983 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 85 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:20,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 219 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:20,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-11-20 11:02:21,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1007. [2022-11-20 11:02:21,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 1006 states have (on average 1.4135188866799204) internal successors, (1422), 1006 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1422 transitions. [2022-11-20 11:02:21,029 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1422 transitions. Word has length 199 [2022-11-20 11:02:21,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:21,030 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1422 transitions. [2022-11-20 11:02:21,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1422 transitions. [2022-11-20 11:02:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 11:02:21,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:21,035 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:21,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:02:21,035 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -643198306, now seen corresponding path program 1 times [2022-11-20 11:02:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:21,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198139308] [2022-11-20 11:02:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:21,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-20 11:02:21,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:21,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198139308] [2022-11-20 11:02:21,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198139308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:21,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:21,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:21,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272391432] [2022-11-20 11:02:21,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:21,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:21,182 INFO L87 Difference]: Start difference. First operand 1007 states and 1422 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:21,433 INFO L93 Difference]: Finished difference Result 2133 states and 3035 transitions. [2022-11-20 11:02:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 199 [2022-11-20 11:02:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:21,440 INFO L225 Difference]: With dead ends: 2133 [2022-11-20 11:02:21,440 INFO L226 Difference]: Without dead ends: 1136 [2022-11-20 11:02:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:21,446 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 87 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:21,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 217 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-20 11:02:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1100. [2022-11-20 11:02:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1099 states have (on average 1.414012738853503) internal successors, (1554), 1099 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1554 transitions. [2022-11-20 11:02:21,499 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1554 transitions. Word has length 199 [2022-11-20 11:02:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:21,500 INFO L495 AbstractCegarLoop]: Abstraction has 1100 states and 1554 transitions. [2022-11-20 11:02:21,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1554 transitions. [2022-11-20 11:02:21,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-20 11:02:21,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:21,506 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2022-11-20 11:02:21,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:02:21,507 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:21,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1155189252, now seen corresponding path program 1 times [2022-11-20 11:02:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:21,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428344101] [2022-11-20 11:02:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-20 11:02:21,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:21,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428344101] [2022-11-20 11:02:21,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428344101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:21,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:21,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:21,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893351174] [2022-11-20 11:02:21,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:21,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:21,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:21,688 INFO L87 Difference]: Start difference. First operand 1100 states and 1554 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:21,767 INFO L93 Difference]: Finished difference Result 3223 states and 4561 transitions. [2022-11-20 11:02:21,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:21,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 229 [2022-11-20 11:02:21,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:21,777 INFO L225 Difference]: With dead ends: 3223 [2022-11-20 11:02:21,778 INFO L226 Difference]: Without dead ends: 2160 [2022-11-20 11:02:21,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:21,781 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 134 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:21,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 508 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:21,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2160 states. [2022-11-20 11:02:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2160 to 2158. [2022-11-20 11:02:21,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2158 states, 2157 states have (on average 1.4149281409364858) internal successors, (3052), 2157 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2158 states to 2158 states and 3052 transitions. [2022-11-20 11:02:21,885 INFO L78 Accepts]: Start accepts. Automaton has 2158 states and 3052 transitions. Word has length 229 [2022-11-20 11:02:21,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:21,886 INFO L495 AbstractCegarLoop]: Abstraction has 2158 states and 3052 transitions. [2022-11-20 11:02:21,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:21,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2158 states and 3052 transitions. [2022-11-20 11:02:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-20 11:02:21,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:21,894 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 5, 5, 4, 4, 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] [2022-11-20 11:02:21,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:02:21,894 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:21,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1647815426, now seen corresponding path program 1 times [2022-11-20 11:02:21,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:21,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448562248] [2022-11-20 11:02:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:21,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-20 11:02:22,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:22,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448562248] [2022-11-20 11:02:22,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448562248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:22,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:22,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:22,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969084738] [2022-11-20 11:02:22,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:22,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:22,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:22,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:22,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:22,086 INFO L87 Difference]: Start difference. First operand 2158 states and 3052 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:22,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:22,376 INFO L93 Difference]: Finished difference Result 4585 states and 6523 transitions. [2022-11-20 11:02:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:22,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 229 [2022-11-20 11:02:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:22,388 INFO L225 Difference]: With dead ends: 4585 [2022-11-20 11:02:22,388 INFO L226 Difference]: Without dead ends: 2434 [2022-11-20 11:02:22,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:22,392 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 90 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:22,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 211 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2022-11-20 11:02:22,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2368. [2022-11-20 11:02:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2367 states have (on average 1.42120828052387) internal successors, (3364), 2367 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3364 transitions. [2022-11-20 11:02:22,511 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3364 transitions. Word has length 229 [2022-11-20 11:02:22,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:22,511 INFO L495 AbstractCegarLoop]: Abstraction has 2368 states and 3364 transitions. [2022-11-20 11:02:22,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3364 transitions. [2022-11-20 11:02:22,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-20 11:02:22,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:22,520 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:22,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:02:22,521 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:22,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:22,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1130835859, now seen corresponding path program 1 times [2022-11-20 11:02:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:22,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071372955] [2022-11-20 11:02:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:22,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-11-20 11:02:22,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:22,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071372955] [2022-11-20 11:02:22,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071372955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:22,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:22,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:22,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953880782] [2022-11-20 11:02:22,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:22,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:22,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:22,682 INFO L87 Difference]: Start difference. First operand 2368 states and 3364 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:23,005 INFO L93 Difference]: Finished difference Result 4765 states and 6757 transitions. [2022-11-20 11:02:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:23,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 264 [2022-11-20 11:02:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:23,017 INFO L225 Difference]: With dead ends: 4765 [2022-11-20 11:02:23,017 INFO L226 Difference]: Without dead ends: 2416 [2022-11-20 11:02:23,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:23,021 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 93 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:23,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 206 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-20 11:02:23,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2350. [2022-11-20 11:02:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.4091102596849723) internal successors, (3310), 2349 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3310 transitions. [2022-11-20 11:02:23,135 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3310 transitions. Word has length 264 [2022-11-20 11:02:23,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:23,136 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3310 transitions. [2022-11-20 11:02:23,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,136 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3310 transitions. [2022-11-20 11:02:23,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 11:02:23,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:23,144 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:02:23,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:02:23,144 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:23,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1187214557, now seen corresponding path program 1 times [2022-11-20 11:02:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:23,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727950768] [2022-11-20 11:02:23,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-11-20 11:02:23,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:23,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727950768] [2022-11-20 11:02:23,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727950768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:23,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:23,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271971122] [2022-11-20 11:02:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:23,337 INFO L87 Difference]: Start difference. First operand 2350 states and 3310 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:23,523 INFO L93 Difference]: Finished difference Result 6951 states and 9784 transitions. [2022-11-20 11:02:23,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:23,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 274 [2022-11-20 11:02:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:23,543 INFO L225 Difference]: With dead ends: 6951 [2022-11-20 11:02:23,544 INFO L226 Difference]: Without dead ends: 4638 [2022-11-20 11:02:23,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:23,549 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 72 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:23,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 340 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2022-11-20 11:02:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4636. [2022-11-20 11:02:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4636 states, 4635 states have (on average 1.4032362459546925) internal successors, (6504), 4635 states have internal predecessors, (6504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6504 transitions. [2022-11-20 11:02:23,847 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 6504 transitions. Word has length 274 [2022-11-20 11:02:23,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:23,847 INFO L495 AbstractCegarLoop]: Abstraction has 4636 states and 6504 transitions. [2022-11-20 11:02:23,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:23,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 6504 transitions. [2022-11-20 11:02:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-20 11:02:23,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:23,860 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:02:23,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:02:23,860 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:23,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1412043949, now seen corresponding path program 1 times [2022-11-20 11:02:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:23,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123238566] [2022-11-20 11:02:23,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:23,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 315 proven. 25 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-20 11:02:24,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:24,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123238566] [2022-11-20 11:02:24,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123238566] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:24,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326599388] [2022-11-20 11:02:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:24,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:24,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:24,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:24,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:02:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:24,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:02:24,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-20 11:02:24,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:24,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326599388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:24,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:24,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-20 11:02:24,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247691895] [2022-11-20 11:02:24,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:24,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:24,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:24,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:24,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:24,497 INFO L87 Difference]: Start difference. First operand 4636 states and 6504 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:24,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:24,977 INFO L93 Difference]: Finished difference Result 9314 states and 13055 transitions. [2022-11-20 11:02:24,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:24,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 274 [2022-11-20 11:02:24,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:24,999 INFO L225 Difference]: With dead ends: 9314 [2022-11-20 11:02:24,999 INFO L226 Difference]: Without dead ends: 4744 [2022-11-20 11:02:25,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:25,007 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:25,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 265 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2022-11-20 11:02:25,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4636. [2022-11-20 11:02:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4636 states, 4635 states have (on average 1.3799352750809062) internal successors, (6396), 4635 states have internal predecessors, (6396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6396 transitions. [2022-11-20 11:02:25,273 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 6396 transitions. Word has length 274 [2022-11-20 11:02:25,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:25,274 INFO L495 AbstractCegarLoop]: Abstraction has 4636 states and 6396 transitions. [2022-11-20 11:02:25,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 6396 transitions. [2022-11-20 11:02:25,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-20 11:02:25,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:25,288 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:25,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:25,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:25,495 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:25,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:25,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1677895817, now seen corresponding path program 1 times [2022-11-20 11:02:25,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:25,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321227868] [2022-11-20 11:02:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 382 proven. 25 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-11-20 11:02:25,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:25,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321227868] [2022-11-20 11:02:25,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321227868] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:25,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562891894] [2022-11-20 11:02:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:25,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:25,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:25,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:25,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:02:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:25,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:02:25,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-20 11:02:25,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:25,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562891894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:25,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:25,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-20 11:02:25,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011271787] [2022-11-20 11:02:25,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:25,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:25,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:25,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:25,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:25,993 INFO L87 Difference]: Start difference. First operand 4636 states and 6396 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:26,396 INFO L93 Difference]: Finished difference Result 9800 states and 13409 transitions. [2022-11-20 11:02:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 301 [2022-11-20 11:02:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:26,420 INFO L225 Difference]: With dead ends: 9800 [2022-11-20 11:02:26,420 INFO L226 Difference]: Without dead ends: 5230 [2022-11-20 11:02:26,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:26,427 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 106 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:26,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 201 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:26,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5230 states. [2022-11-20 11:02:26,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5230 to 4810. [2022-11-20 11:02:26,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.3786650031191516) internal successors, (6630), 4809 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:26,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 6630 transitions. [2022-11-20 11:02:26,730 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 6630 transitions. Word has length 301 [2022-11-20 11:02:26,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:26,731 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 6630 transitions. [2022-11-20 11:02:26,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:26,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 6630 transitions. [2022-11-20 11:02:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-20 11:02:26,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:26,745 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:26,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:26,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:26,954 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:26,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:26,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1606168447, now seen corresponding path program 1 times [2022-11-20 11:02:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:26,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47179037] [2022-11-20 11:02:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-20 11:02:27,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:27,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47179037] [2022-11-20 11:02:27,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47179037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:27,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:02:27,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:02:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860151345] [2022-11-20 11:02:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:27,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:27,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:27,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:27,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:27,112 INFO L87 Difference]: Start difference. First operand 4810 states and 6630 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:27,513 INFO L93 Difference]: Finished difference Result 9878 states and 13499 transitions. [2022-11-20 11:02:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:27,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 302 [2022-11-20 11:02:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:27,535 INFO L225 Difference]: With dead ends: 9878 [2022-11-20 11:02:27,536 INFO L226 Difference]: Without dead ends: 4630 [2022-11-20 11:02:27,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:02:27,543 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 39 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:27,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 273 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:02:27,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2022-11-20 11:02:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4612. [2022-11-20 11:02:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4612 states, 4611 states have (on average 1.3741054001301236) internal successors, (6336), 4611 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:27,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 6336 transitions. [2022-11-20 11:02:27,764 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 6336 transitions. Word has length 302 [2022-11-20 11:02:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:27,765 INFO L495 AbstractCegarLoop]: Abstraction has 4612 states and 6336 transitions. [2022-11-20 11:02:27,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 6336 transitions. [2022-11-20 11:02:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 11:02:27,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:27,778 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:27,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:02:27,779 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:27,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:27,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1919616935, now seen corresponding path program 1 times [2022-11-20 11:02:27,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:27,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418879985] [2022-11-20 11:02:27,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:27,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 354 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:27,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:27,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418879985] [2022-11-20 11:02:27,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418879985] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:27,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155556032] [2022-11-20 11:02:27,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:27,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:27,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:27,970 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:27,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:02:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:28,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:28,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2022-11-20 11:02:28,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:02:28,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155556032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:02:28,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:02:28,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-20 11:02:28,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569609906] [2022-11-20 11:02:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:02:28,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:02:28,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:02:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:28,879 INFO L87 Difference]: Start difference. First operand 4612 states and 6336 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:29,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:29,049 INFO L93 Difference]: Finished difference Result 6921 states and 9490 transitions. [2022-11-20 11:02:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:02:29,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 312 [2022-11-20 11:02:29,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:29,063 INFO L225 Difference]: With dead ends: 6921 [2022-11-20 11:02:29,063 INFO L226 Difference]: Without dead ends: 4614 [2022-11-20 11:02:29,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:29,069 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 57 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:29,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 478 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:02:29,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2022-11-20 11:02:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 4600. [2022-11-20 11:02:29,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.36986301369863) internal successors, (6300), 4599 states have internal predecessors, (6300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6300 transitions. [2022-11-20 11:02:29,279 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6300 transitions. Word has length 312 [2022-11-20 11:02:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6300 transitions. [2022-11-20 11:02:29,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6300 transitions. [2022-11-20 11:02:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 11:02:29,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:29,293 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-20 11:02:29,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:29,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-20 11:02:29,502 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:29,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:29,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1627037657, now seen corresponding path program 1 times [2022-11-20 11:02:29,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:29,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478498578] [2022-11-20 11:02:29,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:29,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:29,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478498578] [2022-11-20 11:02:29,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478498578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:29,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651596767] [2022-11-20 11:02:29,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:29,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:29,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:29,741 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:29,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 11:02:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:29,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:02:29,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:30,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:30,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651596767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:30,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:30,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 11:02:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742614152] [2022-11-20 11:02:30,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:30,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:02:30,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:30,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:02:30,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:02:30,292 INFO L87 Difference]: Start difference. First operand 4600 states and 6300 transitions. Second operand has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 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) [2022-11-20 11:02:31,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:31,101 INFO L93 Difference]: Finished difference Result 7227 states and 9988 transitions. [2022-11-20 11:02:31,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:02:31,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 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) Word has length 312 [2022-11-20 11:02:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:31,115 INFO L225 Difference]: With dead ends: 7227 [2022-11-20 11:02:31,115 INFO L226 Difference]: Without dead ends: 4722 [2022-11-20 11:02:31,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:02:31,121 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 439 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:31,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1254 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:02:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2022-11-20 11:02:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4600. [2022-11-20 11:02:31,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4600 states, 4599 states have (on average 1.3672537508153946) internal successors, (6288), 4599 states have internal predecessors, (6288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:31,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6288 transitions. [2022-11-20 11:02:31,374 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6288 transitions. Word has length 312 [2022-11-20 11:02:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:31,375 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6288 transitions. [2022-11-20 11:02:31,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.818181818181817) internal successors, (229), 11 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) [2022-11-20 11:02:31,375 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6288 transitions. [2022-11-20 11:02:31,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 11:02:31,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:31,388 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-11-20 11:02:31,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:31,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-20 11:02:31,596 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1184629009, now seen corresponding path program 1 times [2022-11-20 11:02:31,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:31,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908167396] [2022-11-20 11:02:31,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:31,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 474 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-20 11:02:31,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:31,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908167396] [2022-11-20 11:02:31,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908167396] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:31,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273902578] [2022-11-20 11:02:31,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:31,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:31,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:31,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:31,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 11:02:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:32,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:02:32,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:32,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:32,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-20 11:02:32,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273902578] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:32,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:32,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-20 11:02:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766749015] [2022-11-20 11:02:32,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:32,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:02:32,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:32,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:02:32,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:02:32,334 INFO L87 Difference]: Start difference. First operand 4600 states and 6288 transitions. Second operand has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:33,315 INFO L93 Difference]: Finished difference Result 6005 states and 8260 transitions. [2022-11-20 11:02:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:02:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 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 313 [2022-11-20 11:02:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:33,323 INFO L225 Difference]: With dead ends: 6005 [2022-11-20 11:02:33,323 INFO L226 Difference]: Without dead ends: 2350 [2022-11-20 11:02:33,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:02:33,329 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 494 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:33,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 978 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:02:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-11-20 11:02:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2284. [2022-11-20 11:02:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2284 states, 2283 states have (on average 1.3653088042049935) internal successors, (3117), 2283 states have internal predecessors, (3117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:33,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3117 transitions. [2022-11-20 11:02:33,445 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3117 transitions. Word has length 313 [2022-11-20 11:02:33,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:33,445 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 3117 transitions. [2022-11-20 11:02:33,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.2) internal successors, (322), 10 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:33,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3117 transitions. [2022-11-20 11:02:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-20 11:02:33,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:33,456 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:33,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:33,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-20 11:02:33,665 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2094731103, now seen corresponding path program 1 times [2022-11-20 11:02:33,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:33,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067243809] [2022-11-20 11:02:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:33,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-20 11:02:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:33,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067243809] [2022-11-20 11:02:33,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067243809] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:33,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304252393] [2022-11-20 11:02:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:33,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:33,888 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:33,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 11:02:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:34,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:34,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:34,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-20 11:02:34,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-20 11:02:34,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304252393] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:34,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:34,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-20 11:02:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120633394] [2022-11-20 11:02:34,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:34,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:02:34,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:34,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:02:34,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:34,324 INFO L87 Difference]: Start difference. First operand 2284 states and 3117 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:35,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:35,153 INFO L93 Difference]: Finished difference Result 5795 states and 8022 transitions. [2022-11-20 11:02:35,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:02:35,154 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 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 314 [2022-11-20 11:02:35,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:35,165 INFO L225 Difference]: With dead ends: 5795 [2022-11-20 11:02:35,165 INFO L226 Difference]: Without dead ends: 3380 [2022-11-20 11:02:35,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:02:35,172 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 249 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:35,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 846 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:02:35,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2022-11-20 11:02:35,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 2481. [2022-11-20 11:02:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2480 states have (on average 1.375) internal successors, (3410), 2480 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3410 transitions. [2022-11-20 11:02:35,354 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3410 transitions. Word has length 314 [2022-11-20 11:02:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:35,355 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3410 transitions. [2022-11-20 11:02:35,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3410 transitions. [2022-11-20 11:02:35,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-20 11:02:35,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:02:35,368 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:02:35,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-20 11:02:35,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:35,579 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:02:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:02:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash 90171258, now seen corresponding path program 1 times [2022-11-20 11:02:35,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:02:35,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303842870] [2022-11-20 11:02:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:35,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:02:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-20 11:02:35,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:02:35,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303842870] [2022-11-20 11:02:35,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303842870] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:02:35,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645407491] [2022-11-20 11:02:35,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:02:35,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:35,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:02:35,852 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:02:35,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 11:02:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:02:36,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:02:36,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:02:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-20 11:02:36,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:02:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-20 11:02:36,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645407491] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:02:36,262 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:02:36,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-20 11:02:36,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615629159] [2022-11-20 11:02:36,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:02:36,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:02:36,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:02:36,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:02:36,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:02:36,266 INFO L87 Difference]: Start difference. First operand 2481 states and 3410 transitions. Second operand has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:36,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:02:36,634 INFO L93 Difference]: Finished difference Result 3536 states and 4811 transitions. [2022-11-20 11:02:36,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:02:36,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 states have internal predecessors, (225), 0 states have call successors, (0), 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 340 [2022-11-20 11:02:36,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:02:36,636 INFO L225 Difference]: With dead ends: 3536 [2022-11-20 11:02:36,637 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:02:36,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:02:36,642 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 115 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:02:36,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 366 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:02:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:02:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:02:36,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:36,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:02:36,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2022-11-20 11:02:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:02:36,645 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:02:36,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 6 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:02:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:02:36,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:02:36,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:02:36,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:02:36,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:02:36,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 11:02:44,617 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2022-11-20 11:02:44,617 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2022-11-20 11:02:44,618 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2022-11-20 11:02:44,618 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2022-11-20 11:02:44,618 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,619 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2022-11-20 11:02:44,620 INFO L895 garLoopResultBuilder]: At program point L203(lines 199 552) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)))) [2022-11-20 11:02:44,621 INFO L895 garLoopResultBuilder]: At program point L137(lines 133 574) the Hoare annotation is: (let ((.cse6 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse1 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse3 (not .cse6)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse0 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse5 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse7 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse4 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse6 .cse0 .cse2 .cse7 .cse4) (and .cse6 .cse0 .cse5 .cse7 .cse4)))) [2022-11-20 11:02:44,621 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2022-11-20 11:02:44,621 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2022-11-20 11:02:44,621 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2022-11-20 11:02:44,622 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 550) no Hoare annotation was computed. [2022-11-20 11:02:44,622 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2022-11-20 11:02:44,622 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2022-11-20 11:02:44,622 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2022-11-20 11:02:44,623 INFO L895 garLoopResultBuilder]: At program point L206(lines 205 550) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse4 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse7 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse6 (not .cse0)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse1 .cse2 .cse3 .cse4 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse0 .cse7 .cse1 .cse2 .cse3) (and .cse5 .cse7 .cse1 .cse6 .cse3)))) [2022-11-20 11:02:44,623 INFO L895 garLoopResultBuilder]: At program point L173(lines 163 564) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) .cse1 (not .cse2) .cse3) (and .cse0 .cse2 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse3))) [2022-11-20 11:02:44,623 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2022-11-20 11:02:44,624 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 482) no Hoare annotation was computed. [2022-11-20 11:02:44,624 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 471 482) no Hoare annotation was computed. [2022-11-20 11:02:44,624 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2022-11-20 11:02:44,624 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,624 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2022-11-20 11:02:44,625 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 344) no Hoare annotation was computed. [2022-11-20 11:02:44,625 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,625 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 549) no Hoare annotation was computed. [2022-11-20 11:02:44,625 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2022-11-20 11:02:44,626 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2022-11-20 11:02:44,626 INFO L895 garLoopResultBuilder]: At program point L109-1(lines 76 630) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse2 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse11 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse12 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse15 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse9 (= 12292 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse7 (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse8 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse16 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse1 (not .cse4)) (.cse17 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse6 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse13 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse4 .cse6 .cse2 .cse3) (and .cse7 .cse0 .cse1 .cse8) (and .cse4 .cse6 .cse9 .cse8) (and .cse4 .cse10 .cse11 .cse6 .cse12 .cse3 .cse13) (and .cse0 .cse14 .cse15 .cse1) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse11 .cse1 .cse12 .cse3) (and .cse4 .cse14 .cse15 .cse6) (and .cse0 .cse1 .cse9 .cse8) (and .cse0 .cse5 .cse1) (and .cse4 .cse7 .cse6 .cse8) (and .cse16 .cse4 .cse6 .cse17 .cse3) (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (and .cse16 .cse0 .cse1 .cse17 .cse3) (and .cse4 .cse6 (= 48 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse4 .cse10 .cse6 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560) (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse3 .cse13)))) [2022-11-20 11:02:44,627 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 479) no Hoare annotation was computed. [2022-11-20 11:02:44,627 INFO L902 garLoopResultBuilder]: At program point L209(lines 208 549) the Hoare annotation is: true [2022-11-20 11:02:44,627 INFO L895 garLoopResultBuilder]: At program point L143(lines 139 572) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse1 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) .cse1 (not .cse2) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse2 .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) (< 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) [2022-11-20 11:02:44,627 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-20 11:02:44,627 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2022-11-20 11:02:44,628 INFO L902 garLoopResultBuilder]: At program point L640(lines 632 642) the Hoare annotation is: true [2022-11-20 11:02:44,628 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2022-11-20 11:02:44,628 INFO L899 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2022-11-20 11:02:44,628 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2022-11-20 11:02:44,628 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2022-11-20 11:02:44,629 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 581) no Hoare annotation was computed. [2022-11-20 11:02:44,629 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2022-11-20 11:02:44,629 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,629 INFO L899 garLoopResultBuilder]: For program point L311(line 311) no Hoare annotation was computed. [2022-11-20 11:02:44,629 INFO L899 garLoopResultBuilder]: For program point L311-2(line 311) no Hoare annotation was computed. [2022-11-20 11:02:44,630 INFO L902 garLoopResultBuilder]: At program point L212(lines 211 548) the Hoare annotation is: true [2022-11-20 11:02:44,630 INFO L895 garLoopResultBuilder]: At program point L179(lines 175 560) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) .cse2 .cse3) (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse2 .cse3))) [2022-11-20 11:02:44,630 INFO L899 garLoopResultBuilder]: For program point L311-4(line 311) no Hoare annotation was computed. [2022-11-20 11:02:44,631 INFO L895 garLoopResultBuilder]: At program point L113(lines 112 581) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse4 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse6 (not .cse0)) (.cse3 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse5 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse2 (= 12292 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse2) (and .cse4 .cse6 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2)))) [2022-11-20 11:02:44,631 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2022-11-20 11:02:44,631 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 417) no Hoare annotation was computed. [2022-11-20 11:02:44,631 INFO L899 garLoopResultBuilder]: For program point L412-2(lines 412 417) no Hoare annotation was computed. [2022-11-20 11:02:44,631 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2022-11-20 11:02:44,632 INFO L899 garLoopResultBuilder]: For program point L313-2(line 313) no Hoare annotation was computed. [2022-11-20 11:02:44,632 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2022-11-20 11:02:44,632 INFO L899 garLoopResultBuilder]: For program point L313-4(line 313) no Hoare annotation was computed. [2022-11-20 11:02:44,632 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2022-11-20 11:02:44,632 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2022-11-20 11:02:44,633 INFO L895 garLoopResultBuilder]: At program point L149(lines 145 570) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse2) (and .cse1 .cse0 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) (< 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse2))) [2022-11-20 11:02:44,633 INFO L895 garLoopResultBuilder]: At program point L546(lines 109 612) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse2 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse11 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse13 (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (.cse5 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse7 (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse8 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse15 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse1 (not .cse4)) (.cse16 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse9 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse6 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse12 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse4 .cse6 .cse2 .cse3) (and .cse7 .cse0 .cse1 .cse8) (and .cse4 .cse9 .cse10 .cse6 .cse11 .cse3 .cse12) (and .cse0 .cse13 .cse14 .cse1) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse10 .cse1 .cse11 .cse3) (and .cse4 .cse13 .cse14 .cse6) (and .cse0 .cse5 .cse1) (and .cse4 .cse7 .cse6 .cse8) (and .cse15 .cse4 .cse6 .cse16 .cse3) (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (and .cse15 .cse0 .cse1 .cse16 .cse3) (and .cse4 .cse6 (= 48 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse4 .cse9 .cse6 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560) (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse3 .cse12)))) [2022-11-20 11:02:44,634 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 92) no Hoare annotation was computed. [2022-11-20 11:02:44,634 INFO L902 garLoopResultBuilder]: At program point L613(lines 108 614) the Hoare annotation is: true [2022-11-20 11:02:44,634 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2022-11-20 11:02:44,634 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2022-11-20 11:02:44,634 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2022-11-20 11:02:44,635 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2022-11-20 11:02:44,635 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 11:02:44,635 INFO L899 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2022-11-20 11:02:44,635 INFO L895 garLoopResultBuilder]: At program point L218(lines 115 580) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse4 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse6 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse1 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse5 (not .cse0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse4 .cse2 .cse6) (and .cse3 .cse1 .cse5)))) [2022-11-20 11:02:44,636 INFO L895 garLoopResultBuilder]: At program point L185(lines 181 558) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) .cse2 .cse3) (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse2 .cse3))) [2022-11-20 11:02:44,636 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2022-11-20 11:02:44,636 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2022-11-20 11:02:44,636 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 84 92) no Hoare annotation was computed. [2022-11-20 11:02:44,636 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2022-11-20 11:02:44,637 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,637 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2022-11-20 11:02:44,637 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2022-11-20 11:02:44,637 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2022-11-20 11:02:44,637 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2022-11-20 11:02:44,638 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2022-11-20 11:02:44,638 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2022-11-20 11:02:44,638 INFO L899 garLoopResultBuilder]: For program point L617(lines 617 621) no Hoare annotation was computed. [2022-11-20 11:02:44,638 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2022-11-20 11:02:44,638 INFO L899 garLoopResultBuilder]: For program point L617-2(lines 617 621) no Hoare annotation was computed. [2022-11-20 11:02:44,639 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2022-11-20 11:02:44,639 INFO L895 garLoopResultBuilder]: At program point L155(lines 151 568) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4448)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse2 .cse3) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) .cse2 (not .cse1) .cse3))) [2022-11-20 11:02:44,639 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-11-20 11:02:44,639 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2022-11-20 11:02:44,640 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 11:02:44,640 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 227) no Hoare annotation was computed. [2022-11-20 11:02:44,640 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2022-11-20 11:02:44,640 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2022-11-20 11:02:44,640 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,641 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2022-11-20 11:02:44,641 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2022-11-20 11:02:44,641 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2022-11-20 11:02:44,641 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2022-11-20 11:02:44,642 INFO L895 garLoopResultBuilder]: At program point L191(lines 187 556) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse2 .cse3) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) .cse2 .cse3))) [2022-11-20 11:02:44,642 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 522 526) no Hoare annotation was computed. [2022-11-20 11:02:44,642 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2022-11-20 11:02:44,642 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2022-11-20 11:02:44,642 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2022-11-20 11:02:44,643 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2022-11-20 11:02:44,643 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2022-11-20 11:02:44,643 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 102) no Hoare annotation was computed. [2022-11-20 11:02:44,643 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 76 630) no Hoare annotation was computed. [2022-11-20 11:02:44,643 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 11:02:44,644 INFO L895 garLoopResultBuilder]: At program point L161(lines 157 566) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) .cse2 .cse3) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) .cse2 .cse3))) [2022-11-20 11:02:44,644 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 99) no Hoare annotation was computed. [2022-11-20 11:02:44,644 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2022-11-20 11:02:44,644 INFO L899 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2022-11-20 11:02:44,645 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 303) no Hoare annotation was computed. [2022-11-20 11:02:44,645 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2022-11-20 11:02:44,645 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2022-11-20 11:02:44,645 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2022-11-20 11:02:44,645 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2022-11-20 11:02:44,646 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2022-11-20 11:02:44,646 INFO L895 garLoopResultBuilder]: At program point L197(lines 193 554) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4))) (or (and .cse0 .cse1 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560) .cse2) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208) (not .cse1) .cse2))) [2022-11-20 11:02:44,646 INFO L895 garLoopResultBuilder]: At program point L131(lines 127 576) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse4 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (.cse5 (<= |ULTIMATE.start_ssl3_connect_~ag_Y~0#1| 208)) (.cse6 (not .cse0)) (.cse1 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400)) (.cse7 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse2 (= 48 |ULTIMATE.start_ssl3_connect_~ag_Z~0#1|)) (.cse3 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse3 .cse4) (and .cse1 .cse5 .cse7 .cse6 .cse3) (and .cse0 .cse1 .cse7 .cse2 .cse3)))) [2022-11-20 11:02:44,646 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 11:02:44,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2022-11-20 11:02:44,647 INFO L895 garLoopResultBuilder]: At program point L363(lines 76 630) the Hoare annotation is: false [2022-11-20 11:02:44,647 INFO L902 garLoopResultBuilder]: At program point L628(lines 76 630) the Hoare annotation is: true [2022-11-20 11:02:44,647 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2022-11-20 11:02:44,648 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2022-11-20 11:02:44,648 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2022-11-20 11:02:44,648 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 302) no Hoare annotation was computed. [2022-11-20 11:02:44,648 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2022-11-20 11:02:44,648 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2022-11-20 11:02:44,649 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2022-11-20 11:02:44,649 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2022-11-20 11:02:44,649 INFO L902 garLoopResultBuilder]: At program point L629(lines 18 631) the Hoare annotation is: true [2022-11-20 11:02:44,649 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-11-20 11:02:44,653 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-20 11:02:44,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:02:44,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:02:44 BoogieIcfgContainer [2022-11-20 11:02:44,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:02:44,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:02:44,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:02:44,686 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:02:44,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:02:16" (3/4) ... [2022-11-20 11:02:44,691 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:02:44,709 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-20 11:02:44,711 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 11:02:44,711 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:02:44,712 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:02:44,802 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:02:44,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:02:44,803 INFO L158 Benchmark]: Toolchain (without parser) took 30614.19ms. Allocated memory was 197.1MB in the beginning and 457.2MB in the end (delta: 260.0MB). Free memory was 151.7MB in the beginning and 348.4MB in the end (delta: -196.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,804 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 132.1MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:02:44,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.71ms. Allocated memory is still 197.1MB. Free memory was 151.7MB in the beginning and 136.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.99ms. Allocated memory is still 197.1MB. Free memory was 136.7MB in the beginning and 133.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,805 INFO L158 Benchmark]: Boogie Preprocessor took 70.70ms. Allocated memory is still 197.1MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,805 INFO L158 Benchmark]: RCFGBuilder took 1313.42ms. Allocated memory is still 197.1MB. Free memory was 131.7MB in the beginning and 163.0MB in the end (delta: -31.3MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,806 INFO L158 Benchmark]: TraceAbstraction took 28409.07ms. Allocated memory was 197.1MB in the beginning and 457.2MB in the end (delta: 260.0MB). Free memory was 162.5MB in the beginning and 355.7MB in the end (delta: -193.3MB). Peak memory consumption was 276.0MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,806 INFO L158 Benchmark]: Witness Printer took 117.22ms. Allocated memory is still 457.2MB. Free memory was 355.7MB in the beginning and 348.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 11:02:44,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 132.1MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.71ms. Allocated memory is still 197.1MB. Free memory was 151.7MB in the beginning and 136.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.99ms. Allocated memory is still 197.1MB. Free memory was 136.7MB in the beginning and 133.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.70ms. Allocated memory is still 197.1MB. Free memory was 133.8MB in the beginning and 131.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1313.42ms. Allocated memory is still 197.1MB. Free memory was 131.7MB in the beginning and 163.0MB in the end (delta: -31.3MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. * TraceAbstraction took 28409.07ms. Allocated memory was 197.1MB in the beginning and 457.2MB in the end (delta: 260.0MB). Free memory was 162.5MB in the beginning and 355.7MB in the end (delta: -193.3MB). Peak memory consumption was 276.0MB. Max. memory is 16.1GB. * Witness Printer took 117.22ms. Allocated memory is still 457.2MB. Free memory was 355.7MB in the beginning and 348.4MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 624]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.3s, OverallIterations: 25, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2709 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2709 mSDsluCounter, 9568 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4499 mSDsCounter, 640 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3694 IncrementalHoareTripleChecker+Invalid, 4334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 640 mSolverCounterUnsat, 5069 mSDtfsCounter, 3694 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3538 GetRequests, 3472 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4810occurred in iteration=19, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 1963 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 24 PreInvPairs, 315 NumberOfFragments, 1095 HoareAnnotationTreeSize, 24 FomulaSimplifications, 118129 FormulaSimplificationTreeSizeReduction, 4.4s HoareSimplificationTime, 24 FomulaSimplificationsInter, 6844 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 6986 NumberOfCodeBlocks, 6986 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 8229 ConstructedInterpolants, 0 QuantifiedInterpolants, 11596 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4011 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 36 InterpolantComputations, 21 PerfectInterpolantSequences, 25321/25584 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: ((((((((((((((((ag_Y <= 208 && !(s__hit == 0)) && 4416 == s__state) && blastFlag <= 4) || ((s__hit == 0 && 2 == blastFlag) && 48 == ag_Z)) || (((s__hit == 0 && 48 == ag_Z) && 4416 == s__state) && blastFlag <= 4)) || (((4368 == s__state && ag_Y <= 208) && !(s__hit == 0)) && blastFlag == 0)) || ((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0)) || (((ag_Y <= 208 && 4384 == s__state) && blastFlag == 1) && !(s__hit == 0))) || (((((3 == s__s3__tmp__next_state___0 && ag_Y <= 208) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && blastFlag <= 4)) || (((s__hit == 0 && 4384 == s__state) && blastFlag == 1) && 48 == ag_Z)) || ((ag_Y <= 208 && 2 == blastFlag) && !(s__hit == 0))) || (((s__hit == 0 && 4368 == s__state) && 48 == ag_Z) && blastFlag == 0)) || ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4528) && blastFlag <= 4)) || 3 == s__state) || ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && s__state <= 4528) && blastFlag <= 4)) || ((s__hit == 0 && 48 == ag_Z) && 48 == s__state)) || ((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 48 == ag_Z) && s__state <= 4560) && 4560 <= s__state) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((((((((((((((((ag_Y <= 208 && !(s__hit == 0)) && 4416 == s__state) && blastFlag <= 4) || ((s__hit == 0 && 2 == blastFlag) && 48 == ag_Z)) || (((s__hit == 0 && 48 == ag_Z) && 4416 == s__state) && blastFlag <= 4)) || (((4368 == s__state && ag_Y <= 208) && !(s__hit == 0)) && blastFlag == 0)) || (((s__hit == 0 && 48 == ag_Z) && 12292 == s__state) && blastFlag == 0)) || ((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0)) || (((ag_Y <= 208 && 4384 == s__state) && blastFlag == 1) && !(s__hit == 0))) || (((((3 == s__s3__tmp__next_state___0 && ag_Y <= 208) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && blastFlag <= 4)) || (((s__hit == 0 && 4384 == s__state) && blastFlag == 1) && 48 == ag_Z)) || (((ag_Y <= 208 && !(s__hit == 0)) && 12292 == s__state) && blastFlag == 0)) || ((ag_Y <= 208 && 2 == blastFlag) && !(s__hit == 0))) || (((s__hit == 0 && 4368 == s__state) && 48 == ag_Z) && blastFlag == 0)) || ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4528) && blastFlag <= 4)) || 3 == s__state) || ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && s__state <= 4528) && blastFlag <= 4)) || ((s__hit == 0 && 48 == ag_Z) && 48 == s__state)) || ((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 48 == ag_Z) && s__state <= 4560) && 4560 <= s__state) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && ag_Y <= 208) && s__state <= 4480) && !(s__hit == 0)) && blastFlag <= 4) || ((((4432 <= s__state && s__hit == 0) && s__state <= 4480) && 48 == ag_Z) && blastFlag <= 4) - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 2 == blastFlag) && 48 == ag_Z) || (((ag_Y <= 208 && s__state <= 4352) && !(s__hit == 0)) && blastFlag == 0)) || (((s__hit == 0 && s__state <= 4352) && 48 == ag_Z) && blastFlag == 0)) || ((ag_Y <= 208 && 2 == blastFlag) && !(s__hit == 0)) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && blastFlag <= 4) && s__state <= 4512) || ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4560) && blastFlag <= 4) || (((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && blastFlag <= 4) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: ((((s__state <= 4432 && ag_Y <= 208) && !(s__hit == 0)) && 4352 <= s__state) && blastFlag <= 4) || ((((s__hit == 0 && s__state <= 4432) && 48 == ag_Z) && 4384 < s__state) && blastFlag <= 4) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((((s__hit == 0 && s__state < 4400) && 48 == ag_Z) && 4352 <= s__state) && blastFlag == 0) || ((((s__state < 4400 && ag_Y <= 208) && !(s__hit == 0)) && 4352 <= s__state) && blastFlag == 0)) || ((((s__state < 4400 && ag_Y <= 208) && 2 == blastFlag) && !(s__hit == 0)) && 4352 <= s__state)) || ((((s__hit == 0 && s__state < 4400) && 2 == blastFlag) && 48 == ag_Z) && 4352 <= s__state) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: (((((s__hit == 0 && 48 == ag_Z) && 12292 == s__state) && blastFlag == 0) || (((ag_Y <= 208 && 2 == blastFlag) && !(s__hit == 0)) && 12292 == s__state)) || (((ag_Y <= 208 && !(s__hit == 0)) && 12292 == s__state) && blastFlag == 0)) || (((s__hit == 0 && 2 == blastFlag) && 48 == ag_Z) && 12292 == s__state) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: (4432 <= s__state && s__hit == 0) || ((4432 <= s__state && ag_Y <= 208) && 2 == blastFlag) - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4464) && blastFlag <= 4) || ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && s__state <= 4464) && blastFlag <= 4) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: ((((((s__state < 4400 && ag_Y <= 208) && blastFlag == 1) && !(s__hit == 0)) && 4352 <= s__state) || ((((s__state < 4400 && ag_Y <= 208) && 2 == blastFlag) && !(s__hit == 0)) && 4352 <= s__state)) || ((((s__hit == 0 && s__state < 4400) && blastFlag == 1) && 48 == ag_Z) && 4352 <= s__state)) || ((((s__hit == 0 && s__state < 4400) && 2 == blastFlag) && 48 == ag_Z) && 4352 <= s__state) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4528) && blastFlag <= 4) || ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && s__state <= 4528) && blastFlag <= 4) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 632]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && ag_Y <= 208) && !(s__hit == 0)) && blastFlag <= 4) && s__state <= 4512) || ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && blastFlag <= 4) && s__state <= 4512) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((s__state <= 4432 && ag_Y <= 208) && 2 == blastFlag) && !(s__hit == 0)) && 4352 <= s__state) || ((((s__hit == 0 && s__state <= 4432) && 2 == blastFlag) && 48 == ag_Z) && 4384 < s__state) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && s__hit == 0) && 48 == ag_Z) && s__state <= 4448) && blastFlag <= 4) || ((((4432 <= s__state && ag_Y <= 208) && s__state <= 4448) && !(s__hit == 0)) && blastFlag <= 4) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: ((((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state) && blastFlag <= 4) && 4560 <= s__s3__tmp__next_state___0) || (((((3 == s__s3__tmp__next_state___0 && ag_Y <= 208) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) && blastFlag <= 4)) || ((((s__hit == 0 && 2 == blastFlag) && s__state <= 4352) && 48 == ag_Z) && 4352 <= s__state)) || ((((ag_Y <= 208 && 2 == blastFlag) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) RESULT: Ultimate proved your program to be correct! [2022-11-20 11:02:44,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d20b095-5094-402a-92b3-f610145e89bf/bin/uautomizer-ug76WZFUDN/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 Writing output log to file Ultimate.log Result: TRUE