./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/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_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a --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-b5237d8 [2022-11-21 16:24:16,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:24:16,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:24:17,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:24:17,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:24:17,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:24:17,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:24:17,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:24:17,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:24:17,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:24:17,058 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:24:17,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:24:17,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:24:17,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:24:17,061 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:24:17,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:24:17,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:24:17,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:24:17,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:24:17,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:24:17,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:24:17,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:24:17,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:24:17,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:24:17,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:24:17,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:24:17,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:24:17,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:24:17,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:24:17,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:24:17,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:24:17,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:24:17,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:24:17,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:24:17,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:24:17,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:24:17,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:24:17,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:24:17,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:24:17,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:24:17,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:24:17,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:24:17,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:24:17,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:24:17,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:24:17,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:24:17,145 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:24:17,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:24:17,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:24:17,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:24:17,147 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:24:17,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:24:17,148 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:24:17,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:24:17,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:24:17,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:24:17,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:24:17,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:24:17,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:24:17,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:24:17,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:24:17,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:17,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:24:17,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:24:17,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:24:17,151 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:24:17,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:24:17,152 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:24:17,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:24:17,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:24:17,153 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_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2022-11-21 16:24:17,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:24:17,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:24:17,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:24:17,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:24:17,465 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:24:17,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-11-21 16:24:20,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:24:20,865 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:24:20,865 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2022-11-21 16:24:20,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/data/240d44fa5/57a7a9b7c559447499c96dc9f09eb275/FLAG971400104 [2022-11-21 16:24:20,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/data/240d44fa5/57a7a9b7c559447499c96dc9f09eb275 [2022-11-21 16:24:20,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:24:20,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:24:20,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:20,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:24:20,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:24:20,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:20" (1/1) ... [2022-11-21 16:24:20,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74892172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:20, skipping insertion in model container [2022-11-21 16:24:20,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:24:20" (1/1) ... [2022-11-21 16:24:20,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:24:20,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:24:21,181 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_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-11-21 16:24:21,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:21,201 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:24:21,252 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_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2022-11-21 16:24:21,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:24:21,269 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:24:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21 WrapperNode [2022-11-21 16:24:21,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:24:21,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:21,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:24:21,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:24:21,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,324 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 497 [2022-11-21 16:24:21,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:24:21,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:24:21,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:24:21,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:24:21,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,385 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:24:21,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:24:21,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:24:21,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:24:21,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (1/1) ... [2022-11-21 16:24:21,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:24:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:21,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:24:21,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:24:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:24:21,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:24:21,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:24:21,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:24:21,597 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:24:21,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:24:21,617 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-21 16:24:22,286 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-11-21 16:24:22,287 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-11-21 16:24:22,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:24:22,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:24:22,304 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:24:22,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:22 BoogieIcfgContainer [2022-11-21 16:24:22,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:24:22,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:24:22,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:24:22,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:24:22,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:24:20" (1/3) ... [2022-11-21 16:24:22,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a5b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:22, skipping insertion in model container [2022-11-21 16:24:22,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:24:21" (2/3) ... [2022-11-21 16:24:22,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576a5b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:24:22, skipping insertion in model container [2022-11-21 16:24:22,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:22" (3/3) ... [2022-11-21 16:24:22,320 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2022-11-21 16:24:22,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:24:22,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:24:22,406 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:24:22,413 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;@266eb567, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:24:22,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:24:22,419 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) [2022-11-21 16:24:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 16:24:22,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:22,436 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] [2022-11-21 16:24:22,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:22,446 INFO L85 PathProgramCache]: Analyzing trace with hash 260022937, now seen corresponding path program 1 times [2022-11-21 16:24:22,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:22,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53766543] [2022-11-21 16:24:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:22,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:22,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53766543] [2022-11-21 16:24:22,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53766543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:22,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:22,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:22,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364811902] [2022-11-21 16:24:22,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:22,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:22,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:22,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:22,831 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) [2022-11-21 16:24:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:23,097 INFO L93 Difference]: Finished difference Result 259 states and 443 transitions. [2022-11-21 16:24:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:23,100 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 [2022-11-21 16:24:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:23,109 INFO L225 Difference]: With dead ends: 259 [2022-11-21 16:24:23,110 INFO L226 Difference]: Without dead ends: 119 [2022-11-21 16:24:23,112 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 [2022-11-21 16:24:23,116 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 8 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:23,117 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] [2022-11-21 16:24:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-21 16:24:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-11-21 16:24:23,152 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) [2022-11-21 16:24:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 181 transitions. [2022-11-21 16:24:23,154 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 181 transitions. Word has length 25 [2022-11-21 16:24:23,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:23,155 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 181 transitions. [2022-11-21 16:24:23,155 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) [2022-11-21 16:24:23,155 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 181 transitions. [2022-11-21 16:24:23,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-21 16:24:23,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:23,156 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] [2022-11-21 16:24:23,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:24:23,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:23,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 693672153, now seen corresponding path program 1 times [2022-11-21 16:24:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:23,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609972164] [2022-11-21 16:24:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:24:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:23,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609972164] [2022-11-21 16:24:23,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609972164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:23,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:23,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:23,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391314642] [2022-11-21 16:24:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:23,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:23,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:23,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:23,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:23,312 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) [2022-11-21 16:24:23,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:23,492 INFO L93 Difference]: Finished difference Result 245 states and 376 transitions. [2022-11-21 16:24:23,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:23,493 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 [2022-11-21 16:24:23,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:23,501 INFO L225 Difference]: With dead ends: 245 [2022-11-21 16:24:23,502 INFO L226 Difference]: Without dead ends: 137 [2022-11-21 16:24:23,507 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 [2022-11-21 16:24:23,509 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:23,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 253 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-21 16:24:23,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-11-21 16:24:23,524 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) [2022-11-21 16:24:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 201 transitions. [2022-11-21 16:24:23,525 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 201 transitions. Word has length 37 [2022-11-21 16:24:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:23,526 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 201 transitions. [2022-11-21 16:24:23,526 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) [2022-11-21 16:24:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 201 transitions. [2022-11-21 16:24:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-21 16:24:23,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:23,528 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] [2022-11-21 16:24:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:24:23,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2014075552, now seen corresponding path program 1 times [2022-11-21 16:24:23,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:23,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238188411] [2022-11-21 16:24:23,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:23,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 16:24:23,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:23,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238188411] [2022-11-21 16:24:23,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238188411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:23,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:23,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:23,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853170830] [2022-11-21 16:24:23,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:23,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:23,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:23,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:23,613 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) [2022-11-21 16:24:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:23,635 INFO L93 Difference]: Finished difference Result 283 states and 420 transitions. [2022-11-21 16:24:23,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:23,636 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 [2022-11-21 16:24:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:23,637 INFO L225 Difference]: With dead ends: 283 [2022-11-21 16:24:23,637 INFO L226 Difference]: Without dead ends: 160 [2022-11-21 16:24:23,638 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 [2022-11-21 16:24:23,639 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 [2022-11-21 16:24:23,640 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] [2022-11-21 16:24:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-21 16:24:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-11-21 16:24:23,652 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) [2022-11-21 16:24:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 234 transitions. [2022-11-21 16:24:23,653 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 234 transitions. Word has length 51 [2022-11-21 16:24:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:23,654 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 234 transitions. [2022-11-21 16:24:23,654 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) [2022-11-21 16:24:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 234 transitions. [2022-11-21 16:24:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-21 16:24:23,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:23,656 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] [2022-11-21 16:24:23,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:24:23,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:23,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1880062046, now seen corresponding path program 1 times [2022-11-21 16:24:23,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:23,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413148751] [2022-11-21 16:24:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:23,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 16:24:23,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:23,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413148751] [2022-11-21 16:24:23,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413148751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:23,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:23,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:23,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034880163] [2022-11-21 16:24:23,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:23,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:23,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:23,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:23,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:23,752 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) [2022-11-21 16:24:23,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:23,898 INFO L93 Difference]: Finished difference Result 304 states and 455 transitions. [2022-11-21 16:24:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:23,898 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 [2022-11-21 16:24:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:23,899 INFO L225 Difference]: With dead ends: 304 [2022-11-21 16:24:23,900 INFO L226 Difference]: Without dead ends: 181 [2022-11-21 16:24:23,900 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 [2022-11-21 16:24:23,901 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:23,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 266 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-21 16:24:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2022-11-21 16:24:23,912 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) [2022-11-21 16:24:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 256 transitions. [2022-11-21 16:24:23,913 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 256 transitions. Word has length 51 [2022-11-21 16:24:23,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:23,914 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 256 transitions. [2022-11-21 16:24:23,914 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) [2022-11-21 16:24:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 256 transitions. [2022-11-21 16:24:23,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-21 16:24:23,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:23,916 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] [2022-11-21 16:24:23,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:24:23,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:23,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:23,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1552359252, now seen corresponding path program 1 times [2022-11-21 16:24:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:23,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171659397] [2022-11-21 16:24:23,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:23,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 16:24:23,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:23,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171659397] [2022-11-21 16:24:23,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171659397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:23,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:23,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:23,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847922093] [2022-11-21 16:24:23,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:24,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:24,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:24,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:24,001 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) [2022-11-21 16:24:24,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:24,033 INFO L93 Difference]: Finished difference Result 454 states and 668 transitions. [2022-11-21 16:24:24,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:24,034 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 [2022-11-21 16:24:24,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:24,036 INFO L225 Difference]: With dead ends: 454 [2022-11-21 16:24:24,036 INFO L226 Difference]: Without dead ends: 314 [2022-11-21 16:24:24,037 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 [2022-11-21 16:24:24,038 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 [2022-11-21 16:24:24,038 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] [2022-11-21 16:24:24,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-21 16:24:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-11-21 16:24:24,052 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) [2022-11-21 16:24:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 455 transitions. [2022-11-21 16:24:24,054 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 455 transitions. Word has length 70 [2022-11-21 16:24:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:24,054 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 455 transitions. [2022-11-21 16:24:24,055 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) [2022-11-21 16:24:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 455 transitions. [2022-11-21 16:24:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-21 16:24:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:24,057 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] [2022-11-21 16:24:24,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:24:24,058 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:24,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1693805076, now seen corresponding path program 1 times [2022-11-21 16:24:24,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:24,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79832719] [2022-11-21 16:24:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:24,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 16:24:24,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:24,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79832719] [2022-11-21 16:24:24,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79832719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:24,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:24,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295896110] [2022-11-21 16:24:24,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:24,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:24,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:24,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:24,117 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) [2022-11-21 16:24:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:24,141 INFO L93 Difference]: Finished difference Result 612 states and 889 transitions. [2022-11-21 16:24:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:24,142 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 [2022-11-21 16:24:24,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:24,144 INFO L225 Difference]: With dead ends: 612 [2022-11-21 16:24:24,144 INFO L226 Difference]: Without dead ends: 335 [2022-11-21 16:24:24,145 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 [2022-11-21 16:24:24,146 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 [2022-11-21 16:24:24,146 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] [2022-11-21 16:24:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-11-21 16:24:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2022-11-21 16:24:24,157 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) [2022-11-21 16:24:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 482 transitions. [2022-11-21 16:24:24,158 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 482 transitions. Word has length 71 [2022-11-21 16:24:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:24,159 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 482 transitions. [2022-11-21 16:24:24,159 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) [2022-11-21 16:24:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 482 transitions. [2022-11-21 16:24:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-21 16:24:24,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:24,161 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] [2022-11-21 16:24:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:24:24,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -294414028, now seen corresponding path program 1 times [2022-11-21 16:24:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:24,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921820843] [2022-11-21 16:24:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-11-21 16:24:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:24,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921820843] [2022-11-21 16:24:24,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921820843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:24,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:24,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273586358] [2022-11-21 16:24:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:24,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:24,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:24,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:24,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:24,229 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) [2022-11-21 16:24:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:24,363 INFO L93 Difference]: Finished difference Result 681 states and 998 transitions. [2022-11-21 16:24:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:24,364 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 [2022-11-21 16:24:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:24,366 INFO L225 Difference]: With dead ends: 681 [2022-11-21 16:24:24,366 INFO L226 Difference]: Without dead ends: 383 [2022-11-21 16:24:24,367 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 [2022-11-21 16:24:24,368 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 [2022-11-21 16:24:24,368 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] [2022-11-21 16:24:24,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-11-21 16:24:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 377. [2022-11-21 16:24:24,379 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) [2022-11-21 16:24:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 534 transitions. [2022-11-21 16:24:24,380 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 534 transitions. Word has length 88 [2022-11-21 16:24:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:24,381 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 534 transitions. [2022-11-21 16:24:24,381 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) [2022-11-21 16:24:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 534 transitions. [2022-11-21 16:24:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-21 16:24:24,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:24,383 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] [2022-11-21 16:24:24,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:24:24,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:24,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1264349868, now seen corresponding path program 1 times [2022-11-21 16:24:24,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:24,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694841029] [2022-11-21 16:24:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:24,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-21 16:24:24,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:24,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694841029] [2022-11-21 16:24:24,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694841029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:24,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:24,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:24,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259335025] [2022-11-21 16:24:24,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:24,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:24,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:24,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:24,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:24,484 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) [2022-11-21 16:24:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:24,558 INFO L93 Difference]: Finished difference Result 538 states and 767 transitions. [2022-11-21 16:24:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:24,558 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 [2022-11-21 16:24:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:24,562 INFO L225 Difference]: With dead ends: 538 [2022-11-21 16:24:24,562 INFO L226 Difference]: Without dead ends: 536 [2022-11-21 16:24:24,562 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 [2022-11-21 16:24:24,564 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 148 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:24,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 321 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-11-21 16:24:24,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2022-11-21 16:24:24,591 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) [2022-11-21 16:24:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 765 transitions. [2022-11-21 16:24:24,593 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 765 transitions. Word has length 108 [2022-11-21 16:24:24,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:24,594 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 765 transitions. [2022-11-21 16:24:24,595 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) [2022-11-21 16:24:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 765 transitions. [2022-11-21 16:24:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 16:24:24,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:24,598 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] [2022-11-21 16:24:24,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:24:24,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:24,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1514969078, now seen corresponding path program 1 times [2022-11-21 16:24:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:24,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972051103] [2022-11-21 16:24:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:24,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-21 16:24:24,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:24,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972051103] [2022-11-21 16:24:24,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972051103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:24,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:24,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:24,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624313984] [2022-11-21 16:24:24,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:24,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:24,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:24,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:24,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:24,700 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) [2022-11-21 16:24:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:24,885 INFO L93 Difference]: Finished difference Result 1185 states and 1745 transitions. [2022-11-21 16:24:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:24,885 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 [2022-11-21 16:24:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:24,888 INFO L225 Difference]: With dead ends: 1185 [2022-11-21 16:24:24,889 INFO L226 Difference]: Without dead ends: 683 [2022-11-21 16:24:24,890 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 [2022-11-21 16:24:24,892 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:24,893 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] [2022-11-21 16:24:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-21 16:24:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 659. [2022-11-21 16:24:24,918 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) [2022-11-21 16:24:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 963 transitions. [2022-11-21 16:24:24,921 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 963 transitions. Word has length 128 [2022-11-21 16:24:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:24,922 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 963 transitions. [2022-11-21 16:24:24,922 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) [2022-11-21 16:24:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 963 transitions. [2022-11-21 16:24:24,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-21 16:24:24,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:24,927 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] [2022-11-21 16:24:24,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:24:24,928 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash -219869315, now seen corresponding path program 1 times [2022-11-21 16:24:24,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:24,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182644196] [2022-11-21 16:24:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:24,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:25,061 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 16:24:25,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:25,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182644196] [2022-11-21 16:24:25,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182644196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:25,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:25,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:25,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227683021] [2022-11-21 16:24:25,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:25,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:25,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:25,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:25,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:25,065 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) [2022-11-21 16:24:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:25,277 INFO L93 Difference]: Finished difference Result 1559 states and 2344 transitions. [2022-11-21 16:24:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:25,278 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 [2022-11-21 16:24:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:25,281 INFO L225 Difference]: With dead ends: 1559 [2022-11-21 16:24:25,281 INFO L226 Difference]: Without dead ends: 886 [2022-11-21 16:24:25,282 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 [2022-11-21 16:24:25,283 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 [2022-11-21 16:24:25,284 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] [2022-11-21 16:24:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-11-21 16:24:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 848. [2022-11-21 16:24:25,307 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) [2022-11-21 16:24:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1215 transitions. [2022-11-21 16:24:25,310 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1215 transitions. Word has length 154 [2022-11-21 16:24:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:25,311 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1215 transitions. [2022-11-21 16:24:25,311 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) [2022-11-21 16:24:25,311 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1215 transitions. [2022-11-21 16:24:25,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-21 16:24:25,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:25,314 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] [2022-11-21 16:24:25,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:24:25,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:25,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1855970287, now seen corresponding path program 1 times [2022-11-21 16:24:25,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:25,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967559056] [2022-11-21 16:24:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:25,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-21 16:24:25,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:25,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967559056] [2022-11-21 16:24:25,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967559056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:25,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:25,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521016269] [2022-11-21 16:24:25,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:25,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:25,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:25,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:25,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:25,425 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) [2022-11-21 16:24:25,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:25,629 INFO L93 Difference]: Finished difference Result 1815 states and 2621 transitions. [2022-11-21 16:24:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:25,630 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 [2022-11-21 16:24:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:25,635 INFO L225 Difference]: With dead ends: 1815 [2022-11-21 16:24:25,637 INFO L226 Difference]: Without dead ends: 959 [2022-11-21 16:24:25,638 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 [2022-11-21 16:24:25,639 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 84 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:25,639 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] [2022-11-21 16:24:25,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-11-21 16:24:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 923. [2022-11-21 16:24:25,666 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) [2022-11-21 16:24:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 923 states to 923 states and 1311 transitions. [2022-11-21 16:24:25,669 INFO L78 Accepts]: Start accepts. Automaton has 923 states and 1311 transitions. Word has length 175 [2022-11-21 16:24:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:25,671 INFO L495 AbstractCegarLoop]: Abstraction has 923 states and 1311 transitions. [2022-11-21 16:24:25,671 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) [2022-11-21 16:24:25,671 INFO L276 IsEmpty]: Start isEmpty. Operand 923 states and 1311 transitions. [2022-11-21 16:24:25,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-21 16:24:25,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:25,674 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] [2022-11-21 16:24:25,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:24:25,675 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:25,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:25,675 INFO L85 PathProgramCache]: Analyzing trace with hash -150572132, now seen corresponding path program 1 times [2022-11-21 16:24:25,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:25,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744476104] [2022-11-21 16:24:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-21 16:24:25,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:25,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744476104] [2022-11-21 16:24:25,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744476104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:25,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:25,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:25,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510914962] [2022-11-21 16:24:25,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:25,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:25,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:25,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:25,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:25,781 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) [2022-11-21 16:24:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:25,984 INFO L93 Difference]: Finished difference Result 1965 states and 2810 transitions. [2022-11-21 16:24:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:25,984 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 [2022-11-21 16:24:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:25,989 INFO L225 Difference]: With dead ends: 1965 [2022-11-21 16:24:25,989 INFO L226 Difference]: Without dead ends: 1040 [2022-11-21 16:24:25,990 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 [2022-11-21 16:24:25,991 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 [2022-11-21 16:24:25,991 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] [2022-11-21 16:24:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-11-21 16:24:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1007. [2022-11-21 16:24:26,022 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) [2022-11-21 16:24:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1422 transitions. [2022-11-21 16:24:26,025 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1422 transitions. Word has length 199 [2022-11-21 16:24:26,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:26,026 INFO L495 AbstractCegarLoop]: Abstraction has 1007 states and 1422 transitions. [2022-11-21 16:24:26,026 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) [2022-11-21 16:24:26,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1422 transitions. [2022-11-21 16:24:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-21 16:24:26,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:26,030 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] [2022-11-21 16:24:26,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:24:26,030 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash -643198306, now seen corresponding path program 1 times [2022-11-21 16:24:26,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:26,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739005493] [2022-11-21 16:24:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:26,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:26,138 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-21 16:24:26,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:26,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739005493] [2022-11-21 16:24:26,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739005493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:26,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:26,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:26,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60655098] [2022-11-21 16:24:26,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:26,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:26,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:26,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:26,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:26,142 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) [2022-11-21 16:24:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:26,342 INFO L93 Difference]: Finished difference Result 2133 states and 3035 transitions. [2022-11-21 16:24:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:26,343 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 [2022-11-21 16:24:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:26,348 INFO L225 Difference]: With dead ends: 2133 [2022-11-21 16:24:26,348 INFO L226 Difference]: Without dead ends: 1136 [2022-11-21 16:24:26,352 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 [2022-11-21 16:24:26,353 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 87 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:26,353 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] [2022-11-21 16:24:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-11-21 16:24:26,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1100. [2022-11-21 16:24:26,387 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) [2022-11-21 16:24:26,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1554 transitions. [2022-11-21 16:24:26,391 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1554 transitions. Word has length 199 [2022-11-21 16:24:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:26,391 INFO L495 AbstractCegarLoop]: Abstraction has 1100 states and 1554 transitions. [2022-11-21 16:24:26,392 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) [2022-11-21 16:24:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1554 transitions. [2022-11-21 16:24:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-21 16:24:26,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:26,396 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] [2022-11-21 16:24:26,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:24:26,396 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:26,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:26,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1155189252, now seen corresponding path program 1 times [2022-11-21 16:24:26,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:26,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286240573] [2022-11-21 16:24:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:26,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-21 16:24:26,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:26,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286240573] [2022-11-21 16:24:26,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286240573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:26,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:26,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:26,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978072754] [2022-11-21 16:24:26,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:26,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:26,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:26,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:26,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:26,541 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) [2022-11-21 16:24:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:26,598 INFO L93 Difference]: Finished difference Result 3223 states and 4561 transitions. [2022-11-21 16:24:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:26,598 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 [2022-11-21 16:24:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:26,606 INFO L225 Difference]: With dead ends: 3223 [2022-11-21 16:24:26,606 INFO L226 Difference]: Without dead ends: 2160 [2022-11-21 16:24:26,608 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 [2022-11-21 16:24:26,609 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 [2022-11-21 16:24:26,609 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] [2022-11-21 16:24:26,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2160 states. [2022-11-21 16:24:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2160 to 2158. [2022-11-21 16:24:26,681 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) [2022-11-21 16:24:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2158 states to 2158 states and 3052 transitions. [2022-11-21 16:24:26,688 INFO L78 Accepts]: Start accepts. Automaton has 2158 states and 3052 transitions. Word has length 229 [2022-11-21 16:24:26,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:26,688 INFO L495 AbstractCegarLoop]: Abstraction has 2158 states and 3052 transitions. [2022-11-21 16:24:26,689 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) [2022-11-21 16:24:26,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2158 states and 3052 transitions. [2022-11-21 16:24:26,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-21 16:24:26,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:26,694 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] [2022-11-21 16:24:26,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:24:26,694 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:26,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:26,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1647815426, now seen corresponding path program 1 times [2022-11-21 16:24:26,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:26,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096168205] [2022-11-21 16:24:26,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:26,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-21 16:24:26,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:26,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096168205] [2022-11-21 16:24:26,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096168205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:26,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:26,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036347592] [2022-11-21 16:24:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:26,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:26,809 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) [2022-11-21 16:24:27,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:27,050 INFO L93 Difference]: Finished difference Result 4585 states and 6523 transitions. [2022-11-21 16:24:27,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:27,051 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 [2022-11-21 16:24:27,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:27,060 INFO L225 Difference]: With dead ends: 4585 [2022-11-21 16:24:27,060 INFO L226 Difference]: Without dead ends: 2434 [2022-11-21 16:24:27,064 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 [2022-11-21 16:24:27,065 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 [2022-11-21 16:24:27,065 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] [2022-11-21 16:24:27,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2022-11-21 16:24:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2368. [2022-11-21 16:24:27,199 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) [2022-11-21 16:24:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 3364 transitions. [2022-11-21 16:24:27,211 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 3364 transitions. Word has length 229 [2022-11-21 16:24:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:27,212 INFO L495 AbstractCegarLoop]: Abstraction has 2368 states and 3364 transitions. [2022-11-21 16:24:27,212 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) [2022-11-21 16:24:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 3364 transitions. [2022-11-21 16:24:27,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-21 16:24:27,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:27,218 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] [2022-11-21 16:24:27,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:24:27,219 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:27,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:27,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1130835859, now seen corresponding path program 1 times [2022-11-21 16:24:27,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:27,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391148975] [2022-11-21 16:24:27,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:27,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-11-21 16:24:27,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:27,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391148975] [2022-11-21 16:24:27,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391148975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:27,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:27,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101589902] [2022-11-21 16:24:27,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:27,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:27,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:27,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:27,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:27,348 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) [2022-11-21 16:24:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:27,583 INFO L93 Difference]: Finished difference Result 4765 states and 6757 transitions. [2022-11-21 16:24:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:27,584 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 [2022-11-21 16:24:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:27,593 INFO L225 Difference]: With dead ends: 4765 [2022-11-21 16:24:27,593 INFO L226 Difference]: Without dead ends: 2416 [2022-11-21 16:24:27,596 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 [2022-11-21 16:24:27,597 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 93 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:27,597 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] [2022-11-21 16:24:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-21 16:24:27,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2350. [2022-11-21 16:24:27,677 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) [2022-11-21 16:24:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3310 transitions. [2022-11-21 16:24:27,684 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3310 transitions. Word has length 264 [2022-11-21 16:24:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:27,685 INFO L495 AbstractCegarLoop]: Abstraction has 2350 states and 3310 transitions. [2022-11-21 16:24:27,685 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) [2022-11-21 16:24:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3310 transitions. [2022-11-21 16:24:27,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-21 16:24:27,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:27,692 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] [2022-11-21 16:24:27,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:24:27,692 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:27,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:27,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1187214557, now seen corresponding path program 1 times [2022-11-21 16:24:27,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:27,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201494356] [2022-11-21 16:24:27,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:27,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-11-21 16:24:27,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:27,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201494356] [2022-11-21 16:24:27,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201494356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:27,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:27,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:27,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711624193] [2022-11-21 16:24:27,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:27,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:27,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:27,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:27,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:27,848 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) [2022-11-21 16:24:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:28,044 INFO L93 Difference]: Finished difference Result 6951 states and 9784 transitions. [2022-11-21 16:24:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:28,045 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 [2022-11-21 16:24:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:28,063 INFO L225 Difference]: With dead ends: 6951 [2022-11-21 16:24:28,063 INFO L226 Difference]: Without dead ends: 4638 [2022-11-21 16:24:28,067 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 [2022-11-21 16:24:28,068 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 [2022-11-21 16:24:28,068 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] [2022-11-21 16:24:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2022-11-21 16:24:28,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4636. [2022-11-21 16:24:28,265 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) [2022-11-21 16:24:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6504 transitions. [2022-11-21 16:24:28,278 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 6504 transitions. Word has length 274 [2022-11-21 16:24:28,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:28,278 INFO L495 AbstractCegarLoop]: Abstraction has 4636 states and 6504 transitions. [2022-11-21 16:24:28,279 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) [2022-11-21 16:24:28,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 6504 transitions. [2022-11-21 16:24:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-11-21 16:24:28,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:28,290 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] [2022-11-21 16:24:28,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:24:28,290 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1412043949, now seen corresponding path program 1 times [2022-11-21 16:24:28,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:28,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250373554] [2022-11-21 16:24:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:28,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 315 proven. 25 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-21 16:24:28,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:28,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250373554] [2022-11-21 16:24:28,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250373554] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:28,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450301995] [2022-11-21 16:24:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:28,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:28,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:28,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:28,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:24:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:28,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:24:28,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:28,683 INFO L134 CoverageAnalysis]: Checked inductivity of 842 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-21 16:24:28,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:24:28,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450301995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:28,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:24:28,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-21 16:24:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298032163] [2022-11-21 16:24:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:28,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:28,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:28,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:28,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:28,686 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) [2022-11-21 16:24:29,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:29,015 INFO L93 Difference]: Finished difference Result 9314 states and 13055 transitions. [2022-11-21 16:24:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:29,016 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 [2022-11-21 16:24:29,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:29,032 INFO L225 Difference]: With dead ends: 9314 [2022-11-21 16:24:29,032 INFO L226 Difference]: Without dead ends: 4744 [2022-11-21 16:24:29,037 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 [2022-11-21 16:24:29,038 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 48 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-21 16:24:29,038 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] [2022-11-21 16:24:29,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2022-11-21 16:24:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 4636. [2022-11-21 16:24:29,210 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) [2022-11-21 16:24:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 6396 transitions. [2022-11-21 16:24:29,223 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 6396 transitions. Word has length 274 [2022-11-21 16:24:29,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:29,224 INFO L495 AbstractCegarLoop]: Abstraction has 4636 states and 6396 transitions. [2022-11-21 16:24:29,224 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) [2022-11-21 16:24:29,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 6396 transitions. [2022-11-21 16:24:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-21 16:24:29,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:29,234 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] [2022-11-21 16:24:29,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:29,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 16:24:29,442 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:29,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:29,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1677895817, now seen corresponding path program 1 times [2022-11-21 16:24:29,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:29,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249154432] [2022-11-21 16:24:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:29,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 382 proven. 25 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-11-21 16:24:29,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249154432] [2022-11-21 16:24:29,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249154432] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671185561] [2022-11-21 16:24:29,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:29,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:29,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:29,610 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:29,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:24:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:29,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:24:29,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-21 16:24:29,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:24:29,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671185561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:29,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:24:29,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-21 16:24:29,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723949092] [2022-11-21 16:24:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:29,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:29,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:29,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:29,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:29,826 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) [2022-11-21 16:24:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:30,130 INFO L93 Difference]: Finished difference Result 9800 states and 13409 transitions. [2022-11-21 16:24:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:30,131 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 [2022-11-21 16:24:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:30,165 INFO L225 Difference]: With dead ends: 9800 [2022-11-21 16:24:30,165 INFO L226 Difference]: Without dead ends: 5230 [2022-11-21 16:24:30,170 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 [2022-11-21 16:24:30,171 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 [2022-11-21 16:24:30,171 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] [2022-11-21 16:24:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5230 states. [2022-11-21 16:24:30,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5230 to 4810. [2022-11-21 16:24:30,353 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) [2022-11-21 16:24:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 6630 transitions. [2022-11-21 16:24:30,365 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 6630 transitions. Word has length 301 [2022-11-21 16:24:30,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:30,366 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 6630 transitions. [2022-11-21 16:24:30,366 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) [2022-11-21 16:24:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 6630 transitions. [2022-11-21 16:24:30,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-21 16:24:30,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:30,376 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] [2022-11-21 16:24:30,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:30,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:30,582 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:30,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:30,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1606168447, now seen corresponding path program 1 times [2022-11-21 16:24:30,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:30,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088437561] [2022-11-21 16:24:30,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:30,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-21 16:24:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:30,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088437561] [2022-11-21 16:24:30,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088437561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:30,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:24:30,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:24:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778703588] [2022-11-21 16:24:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:30,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:30,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:24:30,697 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) [2022-11-21 16:24:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:30,953 INFO L93 Difference]: Finished difference Result 9878 states and 13499 transitions. [2022-11-21 16:24:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:30,954 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 [2022-11-21 16:24:30,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:30,963 INFO L225 Difference]: With dead ends: 9878 [2022-11-21 16:24:30,964 INFO L226 Difference]: Without dead ends: 4630 [2022-11-21 16:24:30,969 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 [2022-11-21 16:24:30,970 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:30,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 273 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4630 states. [2022-11-21 16:24:31,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4630 to 4612. [2022-11-21 16:24:31,108 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) [2022-11-21 16:24:31,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4612 states to 4612 states and 6336 transitions. [2022-11-21 16:24:31,119 INFO L78 Accepts]: Start accepts. Automaton has 4612 states and 6336 transitions. Word has length 302 [2022-11-21 16:24:31,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:31,120 INFO L495 AbstractCegarLoop]: Abstraction has 4612 states and 6336 transitions. [2022-11-21 16:24:31,120 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) [2022-11-21 16:24:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand 4612 states and 6336 transitions. [2022-11-21 16:24:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-21 16:24:31,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:31,130 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] [2022-11-21 16:24:31,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:24:31,131 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:31,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1919616935, now seen corresponding path program 1 times [2022-11-21 16:24:31,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:31,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030285881] [2022-11-21 16:24:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:31,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 354 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:31,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:31,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030285881] [2022-11-21 16:24:31,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030285881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:31,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356415991] [2022-11-21 16:24:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:31,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:31,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:31,286 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:31,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:24:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:31,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:24:31,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2022-11-21 16:24:31,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:24:31,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356415991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:31,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:24:31,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-21 16:24:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117688729] [2022-11-21 16:24:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:31,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:24:31,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:24:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:31,948 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) [2022-11-21 16:24:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:32,088 INFO L93 Difference]: Finished difference Result 6921 states and 9490 transitions. [2022-11-21 16:24:32,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:24:32,089 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 [2022-11-21 16:24:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:32,098 INFO L225 Difference]: With dead ends: 6921 [2022-11-21 16:24:32,098 INFO L226 Difference]: Without dead ends: 4614 [2022-11-21 16:24:32,102 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 [2022-11-21 16:24:32,102 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 [2022-11-21 16:24:32,103 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] [2022-11-21 16:24:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2022-11-21 16:24:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 4600. [2022-11-21 16:24:32,234 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) [2022-11-21 16:24:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6300 transitions. [2022-11-21 16:24:32,248 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6300 transitions. Word has length 312 [2022-11-21 16:24:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:32,249 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6300 transitions. [2022-11-21 16:24:32,249 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) [2022-11-21 16:24:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6300 transitions. [2022-11-21 16:24:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-21 16:24:32,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:32,259 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] [2022-11-21 16:24:32,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 16:24:32,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:32,465 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:32,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1627037657, now seen corresponding path program 1 times [2022-11-21 16:24:32,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:32,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124805618] [2022-11-21 16:24:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:32,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124805618] [2022-11-21 16:24:32,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124805618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841979470] [2022-11-21 16:24:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:32,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:32,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:32,609 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:32,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:24:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:32,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:24:32,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:32,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:24:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:33,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841979470] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:24:33,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:24:33,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 16:24:33,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557732343] [2022-11-21 16:24:33,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:24:33,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 16:24:33,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 16:24:33,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:24:33,059 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) [2022-11-21 16:24:33,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:33,708 INFO L93 Difference]: Finished difference Result 7227 states and 9988 transitions. [2022-11-21 16:24:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:24:33,709 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 [2022-11-21 16:24:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:33,718 INFO L225 Difference]: With dead ends: 7227 [2022-11-21 16:24:33,718 INFO L226 Difference]: Without dead ends: 4722 [2022-11-21 16:24:33,723 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 [2022-11-21 16:24:33,726 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:33,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1254 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:24:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2022-11-21 16:24:33,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4600. [2022-11-21 16:24:33,874 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) [2022-11-21 16:24:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 6288 transitions. [2022-11-21 16:24:33,886 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 6288 transitions. Word has length 312 [2022-11-21 16:24:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:33,887 INFO L495 AbstractCegarLoop]: Abstraction has 4600 states and 6288 transitions. [2022-11-21 16:24:33,887 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) [2022-11-21 16:24:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 6288 transitions. [2022-11-21 16:24:33,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-21 16:24:33,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:33,899 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] [2022-11-21 16:24:33,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:34,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-21 16:24:34,111 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1184629009, now seen corresponding path program 1 times [2022-11-21 16:24:34,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:34,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533171907] [2022-11-21 16:24:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:34,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:34,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 474 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-21 16:24:34,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:34,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533171907] [2022-11-21 16:24:34,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533171907] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:34,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961218089] [2022-11-21 16:24:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:34,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:34,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:34,266 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:34,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:24:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:34,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:24:34,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:34,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:24:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1055 backedges. 356 proven. 25 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2022-11-21 16:24:34,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961218089] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:24:34,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:24:34,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-21 16:24:34,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288084947] [2022-11-21 16:24:34,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:24:34,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:24:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:24:34,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:24:34,701 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) [2022-11-21 16:24:35,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:35,382 INFO L93 Difference]: Finished difference Result 6005 states and 8260 transitions. [2022-11-21 16:24:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:24:35,383 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 [2022-11-21 16:24:35,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:35,387 INFO L225 Difference]: With dead ends: 6005 [2022-11-21 16:24:35,388 INFO L226 Difference]: Without dead ends: 2350 [2022-11-21 16:24:35,392 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 [2022-11-21 16:24:35,392 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 494 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:35,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 978 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:24:35,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2022-11-21 16:24:35,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2284. [2022-11-21 16:24:35,468 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) [2022-11-21 16:24:35,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2284 states to 2284 states and 3117 transitions. [2022-11-21 16:24:35,473 INFO L78 Accepts]: Start accepts. Automaton has 2284 states and 3117 transitions. Word has length 313 [2022-11-21 16:24:35,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:35,473 INFO L495 AbstractCegarLoop]: Abstraction has 2284 states and 3117 transitions. [2022-11-21 16:24:35,474 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) [2022-11-21 16:24:35,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2284 states and 3117 transitions. [2022-11-21 16:24:35,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-11-21 16:24:35,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:35,481 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] [2022-11-21 16:24:35,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:35,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:35,688 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:35,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:35,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2094731103, now seen corresponding path program 1 times [2022-11-21 16:24:35,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:35,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335434324] [2022-11-21 16:24:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:35,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-21 16:24:35,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:35,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335434324] [2022-11-21 16:24:35,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335434324] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:35,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872483127] [2022-11-21 16:24:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:35,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:35,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:35,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:35,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:24:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:35,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:24:36,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-21 16:24:36,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:24:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 475 proven. 12 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-11-21 16:24:36,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872483127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:24:36,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:24:36,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-21 16:24:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788312033] [2022-11-21 16:24:36,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:24:36,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:24:36,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:36,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:24:36,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:36,179 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) [2022-11-21 16:24:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:36,698 INFO L93 Difference]: Finished difference Result 5795 states and 8022 transitions. [2022-11-21 16:24:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:24:36,699 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 [2022-11-21 16:24:36,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:36,706 INFO L225 Difference]: With dead ends: 5795 [2022-11-21 16:24:36,706 INFO L226 Difference]: Without dead ends: 3380 [2022-11-21 16:24:36,709 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 [2022-11-21 16:24:36,710 INFO L413 NwaCegarLoop]: 346 mSDtfsCounter, 249 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:36,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 846 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:24:36,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2022-11-21 16:24:36,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 2481. [2022-11-21 16:24:36,798 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) [2022-11-21 16:24:36,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3410 transitions. [2022-11-21 16:24:36,804 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3410 transitions. Word has length 314 [2022-11-21 16:24:36,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:36,804 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3410 transitions. [2022-11-21 16:24:36,809 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) [2022-11-21 16:24:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3410 transitions. [2022-11-21 16:24:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-21 16:24:36,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:36,817 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] [2022-11-21 16:24:36,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-21 16:24:37,025 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash 90171258, now seen corresponding path program 1 times [2022-11-21 16:24:37,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:37,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789204290] [2022-11-21 16:24:37,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:37,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-21 16:24:37,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:37,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789204290] [2022-11-21 16:24:37,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789204290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:37,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750095160] [2022-11-21 16:24:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:37,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:37,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:37,181 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:37,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:24:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:37,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:24:37,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-21 16:24:37,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:24:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 652 proven. 5 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2022-11-21 16:24:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750095160] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:24:37,495 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:24:37,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-21 16:24:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882870454] [2022-11-21 16:24:37,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:24:37,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:24:37,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:24:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:24:37,497 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) [2022-11-21 16:24:37,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:37,809 INFO L93 Difference]: Finished difference Result 3536 states and 4811 transitions. [2022-11-21 16:24:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:24:37,810 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 [2022-11-21 16:24:37,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:37,811 INFO L225 Difference]: With dead ends: 3536 [2022-11-21 16:24:37,811 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:24:37,814 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 [2022-11-21 16:24:37,815 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:37,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 366 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:24:37,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:24:37,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:24:37,817 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) [2022-11-21 16:24:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:24:37,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 340 [2022-11-21 16:24:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:37,818 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:24:37,818 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) [2022-11-21 16:24:37,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:24:37,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:24:37,821 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:24:37,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:38,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-21 16:24:38,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 371) no Hoare annotation was computed. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 252) no Hoare annotation was computed. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 551) no Hoare annotation was computed. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 562) no Hoare annotation was computed. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L235-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,217 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 573) no Hoare annotation was computed. [2022-11-21 16:24:44,218 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|)))) [2022-11-21 16:24:44,218 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)))) [2022-11-21 16:24:44,218 INFO L899 garLoopResultBuilder]: For program point L501-1(lines 501 513) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 242) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 550) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 561) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 572) no Hoare annotation was computed. [2022-11-21 16:24:44,219 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 540) no Hoare annotation was computed. [2022-11-21 16:24:44,220 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)))) [2022-11-21 16:24:44,220 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))) [2022-11-21 16:24:44,220 INFO L899 garLoopResultBuilder]: For program point L504(lines 504 509) no Hoare annotation was computed. [2022-11-21 16:24:44,220 INFO L899 garLoopResultBuilder]: For program point L471(lines 471 482) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L471-1(lines 471 482) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 344) no Hoare annotation was computed. [2022-11-21 16:24:44,221 INFO L899 garLoopResultBuilder]: For program point L340-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,222 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 549) no Hoare annotation was computed. [2022-11-21 16:24:44,222 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 560) no Hoare annotation was computed. [2022-11-21 16:24:44,222 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 571) no Hoare annotation was computed. [2022-11-21 16:24:44,222 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)))) [2022-11-21 16:24:44,223 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 479) no Hoare annotation was computed. [2022-11-21 16:24:44,223 INFO L902 garLoopResultBuilder]: At program point L209(lines 208 549) the Hoare annotation is: true [2022-11-21 16:24:44,223 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|)))) [2022-11-21 16:24:44,223 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-21 16:24:44,223 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 248) no Hoare annotation was computed. [2022-11-21 16:24:44,223 INFO L902 garLoopResultBuilder]: At program point L640(lines 632 642) the Hoare annotation is: true [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 559) no Hoare annotation was computed. [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 570) no Hoare annotation was computed. [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 581) no Hoare annotation was computed. [2022-11-21 16:24:44,224 INFO L899 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2022-11-21 16:24:44,225 INFO L899 garLoopResultBuilder]: For program point L443-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,225 INFO L899 garLoopResultBuilder]: For program point L311(line 311) no Hoare annotation was computed. [2022-11-21 16:24:44,225 INFO L899 garLoopResultBuilder]: For program point L311-2(line 311) no Hoare annotation was computed. [2022-11-21 16:24:44,225 INFO L902 garLoopResultBuilder]: At program point L212(lines 211 548) the Hoare annotation is: true [2022-11-21 16:24:44,225 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))) [2022-11-21 16:24:44,225 INFO L899 garLoopResultBuilder]: For program point L311-4(line 311) no Hoare annotation was computed. [2022-11-21 16:24:44,226 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)))) [2022-11-21 16:24:44,226 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2022-11-21 16:24:44,226 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 417) no Hoare annotation was computed. [2022-11-21 16:24:44,226 INFO L899 garLoopResultBuilder]: For program point L412-2(lines 412 417) no Hoare annotation was computed. [2022-11-21 16:24:44,226 INFO L899 garLoopResultBuilder]: For program point L313(line 313) no Hoare annotation was computed. [2022-11-21 16:24:44,227 INFO L899 garLoopResultBuilder]: For program point L313-2(line 313) no Hoare annotation was computed. [2022-11-21 16:24:44,227 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 558) no Hoare annotation was computed. [2022-11-21 16:24:44,227 INFO L899 garLoopResultBuilder]: For program point L313-4(line 313) no Hoare annotation was computed. [2022-11-21 16:24:44,227 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 569) no Hoare annotation was computed. [2022-11-21 16:24:44,227 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 580) no Hoare annotation was computed. [2022-11-21 16:24:44,227 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))) [2022-11-21 16:24:44,228 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)))) [2022-11-21 16:24:44,228 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 92) no Hoare annotation was computed. [2022-11-21 16:24:44,228 INFO L902 garLoopResultBuilder]: At program point L613(lines 108 614) the Hoare annotation is: true [2022-11-21 16:24:44,228 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 557) no Hoare annotation was computed. [2022-11-21 16:24:44,228 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 568) no Hoare annotation was computed. [2022-11-21 16:24:44,229 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 579) no Hoare annotation was computed. [2022-11-21 16:24:44,229 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2022-11-21 16:24:44,229 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:24:44,229 INFO L899 garLoopResultBuilder]: For program point L383-2(lines 383 387) no Hoare annotation was computed. [2022-11-21 16:24:44,229 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)))) [2022-11-21 16:24:44,230 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))) [2022-11-21 16:24:44,230 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 610) no Hoare annotation was computed. [2022-11-21 16:24:44,230 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2022-11-21 16:24:44,230 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 84 92) no Hoare annotation was computed. [2022-11-21 16:24:44,230 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 607) no Hoare annotation was computed. [2022-11-21 16:24:44,230 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 357) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 290) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 319 333) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 556) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 567) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 578) no Hoare annotation was computed. [2022-11-21 16:24:44,231 INFO L899 garLoopResultBuilder]: For program point L617(lines 617 621) no Hoare annotation was computed. [2022-11-21 16:24:44,232 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 593) no Hoare annotation was computed. [2022-11-21 16:24:44,232 INFO L899 garLoopResultBuilder]: For program point L617-2(lines 617 621) no Hoare annotation was computed. [2022-11-21 16:24:44,232 INFO L899 garLoopResultBuilder]: For program point L584-2(lines 583 605) no Hoare annotation was computed. [2022-11-21 16:24:44,232 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))) [2022-11-21 16:24:44,232 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 590) no Hoare annotation was computed. [2022-11-21 16:24:44,232 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 459) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 227) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point L190(lines 190 555) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 566) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point L223-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,233 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 577) no Hoare annotation was computed. [2022-11-21 16:24:44,234 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2022-11-21 16:24:44,234 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2022-11-21 16:24:44,234 INFO L899 garLoopResultBuilder]: For program point L323-2(lines 321 333) no Hoare annotation was computed. [2022-11-21 16:24:44,234 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))) [2022-11-21 16:24:44,234 INFO L899 garLoopResultBuilder]: For program point L522-1(lines 522 526) no Hoare annotation was computed. [2022-11-21 16:24:44,234 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 264) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 554) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L160(lines 160 565) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 576) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 102) no Hoare annotation was computed. [2022-11-21 16:24:44,235 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 76 630) no Hoare annotation was computed. [2022-11-21 16:24:44,236 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:24:44,236 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))) [2022-11-21 16:24:44,236 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 99) no Hoare annotation was computed. [2022-11-21 16:24:44,236 INFO L899 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2022-11-21 16:24:44,236 INFO L899 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 303) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 553) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 564) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 575) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2022-11-21 16:24:44,237 INFO L899 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2022-11-21 16:24:44,237 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))) [2022-11-21 16:24:44,238 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)))) [2022-11-21 16:24:44,238 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:24:44,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 624) no Hoare annotation was computed. [2022-11-21 16:24:44,238 INFO L895 garLoopResultBuilder]: At program point L363(lines 76 630) the Hoare annotation is: false [2022-11-21 16:24:44,238 INFO L902 garLoopResultBuilder]: At program point L628(lines 76 630) the Hoare annotation is: true [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 601) no Hoare annotation was computed. [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L298(lines 298 302) no Hoare annotation was computed. [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L298-2(lines 213 545) no Hoare annotation was computed. [2022-11-21 16:24:44,239 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 552) no Hoare annotation was computed. [2022-11-21 16:24:44,240 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 563) no Hoare annotation was computed. [2022-11-21 16:24:44,240 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 574) no Hoare annotation was computed. [2022-11-21 16:24:44,240 INFO L902 garLoopResultBuilder]: At program point L629(lines 18 631) the Hoare annotation is: true [2022-11-21 16:24:44,240 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 468) no Hoare annotation was computed. [2022-11-21 16:24:44,243 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] [2022-11-21 16:24:44,246 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:24:44,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:24:44 BoogieIcfgContainer [2022-11-21 16:24:44,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:24:44,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:24:44,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:24:44,269 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:24:44,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:24:22" (3/4) ... [2022-11-21 16:24:44,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:24:44,287 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 16:24:44,287 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 16:24:44,288 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:24:44,289 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:24:44,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:24:44,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:24:44,362 INFO L158 Benchmark]: Toolchain (without parser) took 23466.86ms. Allocated memory was 192.9MB in the beginning and 507.5MB in the end (delta: 314.6MB). Free memory was 149.6MB in the beginning and 361.6MB in the end (delta: -212.0MB). Peak memory consumption was 105.6MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,362 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:24:44,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.02ms. Allocated memory is still 192.9MB. Free memory was 149.6MB in the beginning and 134.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.45ms. Allocated memory is still 192.9MB. Free memory was 134.2MB in the beginning and 131.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,363 INFO L158 Benchmark]: Boogie Preprocessor took 67.24ms. Allocated memory is still 192.9MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,363 INFO L158 Benchmark]: RCFGBuilder took 903.60ms. Allocated memory is still 192.9MB. Free memory was 129.3MB in the beginning and 146.2MB in the end (delta: -16.9MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,363 INFO L158 Benchmark]: TraceAbstraction took 21958.92ms. Allocated memory was 192.9MB in the beginning and 507.5MB in the end (delta: 314.6MB). Free memory was 146.2MB in the beginning and 369.0MB in the end (delta: -222.7MB). Peak memory consumption was 294.6MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,364 INFO L158 Benchmark]: Witness Printer took 92.96ms. Allocated memory is still 507.5MB. Free memory was 369.0MB in the beginning and 361.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:24:44,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 62.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.02ms. Allocated memory is still 192.9MB. Free memory was 149.6MB in the beginning and 134.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.45ms. Allocated memory is still 192.9MB. Free memory was 134.2MB in the beginning and 131.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.24ms. Allocated memory is still 192.9MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 903.60ms. Allocated memory is still 192.9MB. Free memory was 129.3MB in the beginning and 146.2MB in the end (delta: -16.9MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21958.92ms. Allocated memory was 192.9MB in the beginning and 507.5MB in the end (delta: 314.6MB). Free memory was 146.2MB in the beginning and 369.0MB in the end (delta: -222.7MB). Peak memory consumption was 294.6MB. Max. memory is 16.1GB. * Witness Printer took 92.96ms. Allocated memory is still 507.5MB. Free memory was 369.0MB in the beginning and 361.6MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 21.9s, OverallIterations: 25, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2709 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2709 mSDsluCounter, 9568 SdHoareTripleChecker+Invalid, 3.1s 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, 0.3s 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: 1.8s AutomataMinimizationTime, 25 MinimizatonAttempts, 1963 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 24 PreInvPairs, 315 NumberOfFragments, 1095 HoareAnnotationTreeSize, 24 FomulaSimplifications, 118129 FormulaSimplificationTreeSizeReduction, 3.5s HoareSimplificationTime, 24 FomulaSimplificationsInter, 6844 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.9s 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! [2022-11-21 16:24:44,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f63c0-30be-4c2a-9efa-877dedbb7b1c/bin/uautomizer-vX5HgA9Q3a/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