./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/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_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/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_208fae72-9f7b-4619-8d23-61237a8ea5ab/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 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c --- 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 16:15:27,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:15:27,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:15:27,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:15:27,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:15:27,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:15:27,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:15:27,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:15:27,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:15:27,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:15:27,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:15:27,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:15:27,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:15:27,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:15:27,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:15:27,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:15:27,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:15:27,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:15:27,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:15:27,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:15:27,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:15:27,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:15:27,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:15:27,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:15:27,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:15:27,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:15:27,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:15:27,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:15:27,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:15:27,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:15:27,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:15:27,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:15:27,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:15:27,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:15:27,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:15:27,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:15:27,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:15:27,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:15:27,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:15:27,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:15:27,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:15:27,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:15:27,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:15:27,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:15:27,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:15:27,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:15:27,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:15:27,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:15:27,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:15:27,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:15:27,199 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:15:27,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:15:27,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:15:27,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:15:27,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:15:27,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:15:27,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:15:27,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:15:27,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:15:27,202 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:15:27,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:15:27,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:15:27,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:15:27,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:15:27,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:15:27,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:15:27,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:15:27,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:15:27,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:15:27,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:15:27,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:15:27,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:15:27,206 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:15:27,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:15:27,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:15:27,207 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_208fae72-9f7b-4619-8d23-61237a8ea5ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c [2022-11-21 16:15:27,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:15:27,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:15:27,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:15:27,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:15:27,534 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:15:27,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2022-11-21 16:15:30,717 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:15:31,125 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:15:31,126 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2022-11-21 16:15:31,156 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/data/d6f61a2b3/3f86338ddd1f4e229e50a888e75b4cbf/FLAGe144fd2f3 [2022-11-21 16:15:31,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/data/d6f61a2b3/3f86338ddd1f4e229e50a888e75b4cbf [2022-11-21 16:15:31,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:15:31,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:15:31,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:15:31,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:15:31,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:15:31,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:15:31" (1/1) ... [2022-11-21 16:15:31,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1414f155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:31, skipping insertion in model container [2022-11-21 16:15:31,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:15:31" (1/1) ... [2022-11-21 16:15:31,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:15:31,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:15:31,804 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_208fae72-9f7b-4619-8d23-61237a8ea5ab/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2022-11-21 16:15:31,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:15:31,836 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:15:32,024 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_208fae72-9f7b-4619-8d23-61237a8ea5ab/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c[68958,68971] [2022-11-21 16:15:32,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:15:32,075 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:15:32,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32 WrapperNode [2022-11-21 16:15:32,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:15:32,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:15:32,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:15:32,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:15:32,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,224 INFO L138 Inliner]: procedures = 89, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 1003 [2022-11-21 16:15:32,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:15:32,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:15:32,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:15:32,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:15:32,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:15:32,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:15:32,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:15:32,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:15:32,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (1/1) ... [2022-11-21 16:15:32,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:15:32,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:15:32,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:15:32,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:15:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:15:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-11-21 16:15:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-11-21 16:15:32,453 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-11-21 16:15:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-11-21 16:15:32,454 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-11-21 16:15:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-11-21 16:15:32,455 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-11-21 16:15:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-11-21 16:15:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-11-21 16:15:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-11-21 16:15:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-11-21 16:15:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-11-21 16:15:32,456 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 16:15:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 16:15:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 16:15:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 16:15:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-11-21 16:15:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-11-21 16:15:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-11-21 16:15:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-11-21 16:15:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-11-21 16:15:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-11-21 16:15:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-11-21 16:15:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-11-21 16:15:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-11-21 16:15:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-11-21 16:15:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-11-21 16:15:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-11-21 16:15:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-11-21 16:15:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-11-21 16:15:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-11-21 16:15:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-11-21 16:15:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-11-21 16:15:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-11-21 16:15:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-11-21 16:15:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-11-21 16:15:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:15:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-11-21 16:15:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-11-21 16:15:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-11-21 16:15:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-11-21 16:15:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-11-21 16:15:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-11-21 16:15:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:15:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:15:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-11-21 16:15:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-11-21 16:15:32,707 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:15:32,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:15:33,929 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:15:33,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:15:33,958 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:15:33,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:15:33 BoogieIcfgContainer [2022-11-21 16:15:33,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:15:33,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:15:33,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:15:33,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:15:33,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:15:31" (1/3) ... [2022-11-21 16:15:33,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d643dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:15:33, skipping insertion in model container [2022-11-21 16:15:33,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:15:32" (2/3) ... [2022-11-21 16:15:33,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d643dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:15:33, skipping insertion in model container [2022-11-21 16:15:33,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:15:33" (3/3) ... [2022-11-21 16:15:33,978 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2022-11-21 16:15:34,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:15:34,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:15:34,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:15:34,133 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;@f6507d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:15:34,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:15:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 402 states have (on average 1.681592039800995) internal successors, (676), 418 states have internal predecessors, (676), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-11-21 16:15:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-21 16:15:34,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:34,189 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:15:34,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:34,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:34,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1965651267, now seen corresponding path program 1 times [2022-11-21 16:15:34,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:34,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503711080] [2022-11-21 16:15:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:34,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 16:15:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:15:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:15:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:15:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:15:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:15:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:15:35,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:35,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503711080] [2022-11-21 16:15:35,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503711080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:35,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:35,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:35,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142046530] [2022-11-21 16:15:35,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:35,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:35,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:35,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:35,404 INFO L87 Difference]: Start difference. First operand has 517 states, 402 states have (on average 1.681592039800995) internal successors, (676), 418 states have internal predecessors, (676), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:40,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:40,828 INFO L93 Difference]: Finished difference Result 1231 states and 2072 transitions. [2022-11-21 16:15:40,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:15:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2022-11-21 16:15:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:40,871 INFO L225 Difference]: With dead ends: 1231 [2022-11-21 16:15:40,877 INFO L226 Difference]: Without dead ends: 710 [2022-11-21 16:15:40,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:15:40,897 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1282 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:40,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1309 Invalid, 2790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [404 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-21 16:15:40,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-21 16:15:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-21 16:15:41,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.670854271356784) internal successors, (665), 413 states have internal predecessors, (665), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:15:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 846 transitions. [2022-11-21 16:15:41,125 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 846 transitions. Word has length 101 [2022-11-21 16:15:41,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:41,125 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 846 transitions. [2022-11-21 16:15:41,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:41,126 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 846 transitions. [2022-11-21 16:15:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-21 16:15:41,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:41,133 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:15:41,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:15:41,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:41,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1219828463, now seen corresponding path program 1 times [2022-11-21 16:15:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:41,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361599752] [2022-11-21 16:15:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:15:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:15:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-21 16:15:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:15:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:15:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:15:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:15:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:41,494 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:15:41,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:41,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361599752] [2022-11-21 16:15:41,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361599752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:41,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:41,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:41,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756909757] [2022-11-21 16:15:41,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:41,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:41,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:41,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:41,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:41,502 INFO L87 Difference]: Start difference. First operand 512 states and 846 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:46,351 INFO L93 Difference]: Finished difference Result 1205 states and 1999 transitions. [2022-11-21 16:15:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:15:46,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2022-11-21 16:15:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:46,361 INFO L225 Difference]: With dead ends: 1205 [2022-11-21 16:15:46,361 INFO L226 Difference]: Without dead ends: 710 [2022-11-21 16:15:46,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:15:46,370 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 1255 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 2783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:46,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1268 Invalid, 2783 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [402 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-21 16:15:46,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-21 16:15:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-21 16:15:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6683417085427135) internal successors, (664), 413 states have internal predecessors, (664), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:15:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 845 transitions. [2022-11-21 16:15:46,537 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 845 transitions. Word has length 102 [2022-11-21 16:15:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:46,537 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 845 transitions. [2022-11-21 16:15:46,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:46,538 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 845 transitions. [2022-11-21 16:15:46,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-21 16:15:46,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:46,543 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:15:46,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:15:46,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:46,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:46,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1726293121, now seen corresponding path program 1 times [2022-11-21 16:15:46,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:46,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999519523] [2022-11-21 16:15:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:46,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:15:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-21 16:15:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-21 16:15:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:15:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 16:15:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:15:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:15:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:15:46,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:46,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999519523] [2022-11-21 16:15:46,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999519523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:46,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:46,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:46,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604371283] [2022-11-21 16:15:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:46,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:46,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:46,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:46,974 INFO L87 Difference]: Start difference. First operand 512 states and 845 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:51,726 INFO L93 Difference]: Finished difference Result 1205 states and 1998 transitions. [2022-11-21 16:15:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:15:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-11-21 16:15:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:51,732 INFO L225 Difference]: With dead ends: 1205 [2022-11-21 16:15:51,732 INFO L226 Difference]: Without dead ends: 710 [2022-11-21 16:15:51,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:15:51,736 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1264 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:51,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 1225 Invalid, 2785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [401 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-21 16:15:51,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-21 16:15:51,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-21 16:15:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6658291457286432) internal successors, (663), 413 states have internal predecessors, (663), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:15:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 844 transitions. [2022-11-21 16:15:51,844 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 844 transitions. Word has length 103 [2022-11-21 16:15:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:51,844 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 844 transitions. [2022-11-21 16:15:51,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 844 transitions. [2022-11-21 16:15:51,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-21 16:15:51,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:51,848 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:15:51,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:15:51,849 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:51,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:51,849 INFO L85 PathProgramCache]: Analyzing trace with hash -787669171, now seen corresponding path program 1 times [2022-11-21 16:15:51,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:51,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461404424] [2022-11-21 16:15:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 16:15:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:15:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:15:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:15:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 16:15:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:15:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-21 16:15:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:15:52,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:52,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461404424] [2022-11-21 16:15:52,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461404424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:52,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:52,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:52,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701788296] [2022-11-21 16:15:52,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:52,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:52,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:52,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:52,134 INFO L87 Difference]: Start difference. First operand 512 states and 844 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:15:56,634 INFO L93 Difference]: Finished difference Result 1205 states and 1997 transitions. [2022-11-21 16:15:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:15:56,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-11-21 16:15:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:15:56,640 INFO L225 Difference]: With dead ends: 1205 [2022-11-21 16:15:56,640 INFO L226 Difference]: Without dead ends: 710 [2022-11-21 16:15:56,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:15:56,644 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1260 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:15:56,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1232 Invalid, 2784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-21 16:15:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-21 16:15:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-21 16:15:56,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6633165829145728) internal successors, (662), 413 states have internal predecessors, (662), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:15:56,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 843 transitions. [2022-11-21 16:15:56,744 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 843 transitions. Word has length 104 [2022-11-21 16:15:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:15:56,744 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 843 transitions. [2022-11-21 16:15:56,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:15:56,745 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 843 transitions. [2022-11-21 16:15:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-21 16:15:56,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:15:56,748 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:15:56,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:15:56,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:15:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:15:56,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1999028667, now seen corresponding path program 1 times [2022-11-21 16:15:56,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:15:56,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457323378] [2022-11-21 16:15:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:15:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:15:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:56,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:15:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:15:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 16:15:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:15:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:15:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:15:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:15:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:15:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:15:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:15:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:15:57,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:15:57,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457323378] [2022-11-21 16:15:57,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457323378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:15:57,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:15:57,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:15:57,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010089238] [2022-11-21 16:15:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:15:57,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:15:57,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:15:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:15:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:15:57,061 INFO L87 Difference]: Start difference. First operand 512 states and 843 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:01,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:01,725 INFO L93 Difference]: Finished difference Result 1205 states and 1996 transitions. [2022-11-21 16:16:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:16:01,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2022-11-21 16:16:01,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:01,738 INFO L225 Difference]: With dead ends: 1205 [2022-11-21 16:16:01,738 INFO L226 Difference]: Without dead ends: 710 [2022-11-21 16:16:01,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:01,748 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1262 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2376 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:01,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 1206 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 2376 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-21 16:16:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-11-21 16:16:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 512. [2022-11-21 16:16:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 398 states have (on average 1.6608040201005025) internal successors, (661), 413 states have internal predecessors, (661), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:16:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 842 transitions. [2022-11-21 16:16:01,897 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 842 transitions. Word has length 105 [2022-11-21 16:16:01,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:01,897 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 842 transitions. [2022-11-21 16:16:01,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:01,898 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 842 transitions. [2022-11-21 16:16:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 16:16:01,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:01,901 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:01,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:16:01,901 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:01,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:01,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1946474889, now seen corresponding path program 1 times [2022-11-21 16:16:01,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:01,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441238475] [2022-11-21 16:16:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:01,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:16:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:16:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:16:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:16:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:16:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:16:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:02,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441238475] [2022-11-21 16:16:02,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441238475] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:02,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:02,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:16:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718343080] [2022-11-21 16:16:02,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:02,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:16:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:16:02,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:02,364 INFO L87 Difference]: Start difference. First operand 512 states and 842 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:08,150 INFO L93 Difference]: Finished difference Result 1227 states and 2032 transitions. [2022-11-21 16:16:08,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:16:08,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2022-11-21 16:16:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:08,156 INFO L225 Difference]: With dead ends: 1227 [2022-11-21 16:16:08,156 INFO L226 Difference]: Without dead ends: 736 [2022-11-21 16:16:08,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:16:08,160 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1386 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 4551 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 4961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 4551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:08,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1433 Valid, 2242 Invalid, 4961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 4551 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-21 16:16:08,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-11-21 16:16:08,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 525. [2022-11-21 16:16:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6568627450980393) internal successors, (676), 425 states have internal predecessors, (676), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2022-11-21 16:16:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 862 transitions. [2022-11-21 16:16:08,299 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 862 transitions. Word has length 106 [2022-11-21 16:16:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:08,300 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 862 transitions. [2022-11-21 16:16:08,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 862 transitions. [2022-11-21 16:16:08,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 16:16:08,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:08,304 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:08,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:16:08,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:08,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1409960792, now seen corresponding path program 1 times [2022-11-21 16:16:08,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:08,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153660597] [2022-11-21 16:16:08,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:08,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:16:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:16:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:16:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:16:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:16:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:16:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:08,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:08,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153660597] [2022-11-21 16:16:08,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153660597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:08,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:08,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:08,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471218140] [2022-11-21 16:16:08,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:08,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:08,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:08,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:08,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:08,573 INFO L87 Difference]: Start difference. First operand 525 states and 862 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:13,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:13,264 INFO L93 Difference]: Finished difference Result 1270 states and 2105 transitions. [2022-11-21 16:16:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:16:13,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-11-21 16:16:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:13,270 INFO L225 Difference]: With dead ends: 1270 [2022-11-21 16:16:13,271 INFO L226 Difference]: Without dead ends: 770 [2022-11-21 16:16:13,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:16:13,274 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1373 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 2317 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:13,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1241 Invalid, 2727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 2317 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-21 16:16:13,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-11-21 16:16:13,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 545. [2022-11-21 16:16:13,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.6510538641686183) internal successors, (705), 444 states have internal predecessors, (705), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 890 transitions. [2022-11-21 16:16:13,402 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 890 transitions. Word has length 106 [2022-11-21 16:16:13,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:13,403 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 890 transitions. [2022-11-21 16:16:13,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 890 transitions. [2022-11-21 16:16:13,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-21 16:16:13,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:13,407 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:13,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:16:13,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash 416871043, now seen corresponding path program 1 times [2022-11-21 16:16:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067111500] [2022-11-21 16:16:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:13,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:16:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 16:16:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:16:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-21 16:16:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:16:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 16:16:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:13,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:13,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067111500] [2022-11-21 16:16:13,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067111500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:13,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:13,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:13,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074011612] [2022-11-21 16:16:13,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:13,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:13,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:13,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:13,722 INFO L87 Difference]: Start difference. First operand 545 states and 890 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:18,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:18,435 INFO L93 Difference]: Finished difference Result 1245 states and 2040 transitions. [2022-11-21 16:16:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:16:18,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-11-21 16:16:18,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:18,442 INFO L225 Difference]: With dead ends: 1245 [2022-11-21 16:16:18,442 INFO L226 Difference]: Without dead ends: 761 [2022-11-21 16:16:18,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:16:18,445 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 1335 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 2293 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 2700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 2293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:18,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1234 Invalid, 2700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [407 Valid, 2293 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-21 16:16:18,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-21 16:16:18,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 545. [2022-11-21 16:16:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.639344262295082) internal successors, (700), 444 states have internal predecessors, (700), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 885 transitions. [2022-11-21 16:16:18,547 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 885 transitions. Word has length 107 [2022-11-21 16:16:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:18,547 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 885 transitions. [2022-11-21 16:16:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:18,548 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 885 transitions. [2022-11-21 16:16:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-21 16:16:18,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:18,552 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:18,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:16:18,552 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:18,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:18,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1916227379, now seen corresponding path program 1 times [2022-11-21 16:16:18,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:18,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301219520] [2022-11-21 16:16:18,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:18,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:16:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-21 16:16:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:16:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:16:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:16:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:16:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:18,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301219520] [2022-11-21 16:16:18,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301219520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:18,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:18,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292163971] [2022-11-21 16:16:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:18,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:18,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:18,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:18,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:18,883 INFO L87 Difference]: Start difference. First operand 545 states and 885 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:23,392 INFO L93 Difference]: Finished difference Result 1245 states and 2035 transitions. [2022-11-21 16:16:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:16:23,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-11-21 16:16:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:23,398 INFO L225 Difference]: With dead ends: 1245 [2022-11-21 16:16:23,399 INFO L226 Difference]: Without dead ends: 761 [2022-11-21 16:16:23,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:16:23,403 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 1331 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:23,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1211 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-21 16:16:23,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-21 16:16:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 545. [2022-11-21 16:16:23,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.6276346604215457) internal successors, (695), 444 states have internal predecessors, (695), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 880 transitions. [2022-11-21 16:16:23,551 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 880 transitions. Word has length 108 [2022-11-21 16:16:23,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:23,552 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 880 transitions. [2022-11-21 16:16:23,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:23,552 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 880 transitions. [2022-11-21 16:16:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 16:16:23,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:23,557 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:23,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:16:23,557 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:23,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:23,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1956894120, now seen corresponding path program 1 times [2022-11-21 16:16:23,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:23,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081548484] [2022-11-21 16:16:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:16:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:16:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:16:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:16:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:16:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:16:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:23,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:23,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081548484] [2022-11-21 16:16:23,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081548484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:23,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:23,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:16:23,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330998851] [2022-11-21 16:16:23,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:23,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:16:23,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:23,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:16:23,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:23,980 INFO L87 Difference]: Start difference. First operand 545 states and 880 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:29,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:29,820 INFO L93 Difference]: Finished difference Result 1249 states and 2031 transitions. [2022-11-21 16:16:29,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:16:29,821 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2022-11-21 16:16:29,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:29,826 INFO L225 Difference]: With dead ends: 1249 [2022-11-21 16:16:29,826 INFO L226 Difference]: Without dead ends: 780 [2022-11-21 16:16:29,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:16:29,830 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1335 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 4520 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 4932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 4520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:29,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 2151 Invalid, 4932 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [412 Valid, 4520 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-21 16:16:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-21 16:16:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 547. [2022-11-21 16:16:29,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6223776223776223) internal successors, (696), 446 states have internal predecessors, (696), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 881 transitions. [2022-11-21 16:16:29,953 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 881 transitions. Word has length 109 [2022-11-21 16:16:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:29,954 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 881 transitions. [2022-11-21 16:16:29,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 881 transitions. [2022-11-21 16:16:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 16:16:29,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:29,958 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:29,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:16:29,958 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:29,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:29,959 INFO L85 PathProgramCache]: Analyzing trace with hash -63177592, now seen corresponding path program 1 times [2022-11-21 16:16:29,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:29,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663258999] [2022-11-21 16:16:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:29,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:16:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:16:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:16:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:16:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:16:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:16:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:30,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663258999] [2022-11-21 16:16:30,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663258999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:30,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:30,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594672861] [2022-11-21 16:16:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:30,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:30,240 INFO L87 Difference]: Start difference. First operand 547 states and 881 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:34,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:34,582 INFO L93 Difference]: Finished difference Result 1249 states and 2030 transitions. [2022-11-21 16:16:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:16:34,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-11-21 16:16:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:34,588 INFO L225 Difference]: With dead ends: 1249 [2022-11-21 16:16:34,588 INFO L226 Difference]: Without dead ends: 763 [2022-11-21 16:16:34,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:16:34,592 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1327 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:34,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1191 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 2268 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-21 16:16:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2022-11-21 16:16:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 547. [2022-11-21 16:16:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 429 states have (on average 1.6107226107226107) internal successors, (691), 446 states have internal predecessors, (691), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 876 transitions. [2022-11-21 16:16:34,699 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 876 transitions. Word has length 109 [2022-11-21 16:16:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:34,699 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 876 transitions. [2022-11-21 16:16:34,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 876 transitions. [2022-11-21 16:16:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 16:16:34,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:34,704 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:34,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:16:34,704 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 25192784, now seen corresponding path program 1 times [2022-11-21 16:16:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:34,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508395535] [2022-11-21 16:16:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:34,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:34,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:34,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:16:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:35,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:16:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:16:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:16:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:16:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:16:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:35,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:35,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508395535] [2022-11-21 16:16:35,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508395535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:35,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:35,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:16:35,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022987399] [2022-11-21 16:16:35,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:35,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:16:35,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:35,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:16:35,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:35,068 INFO L87 Difference]: Start difference. First operand 547 states and 876 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:40,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:40,899 INFO L93 Difference]: Finished difference Result 1274 states and 2058 transitions. [2022-11-21 16:16:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:16:40,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2022-11-21 16:16:40,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:40,905 INFO L225 Difference]: With dead ends: 1274 [2022-11-21 16:16:40,905 INFO L226 Difference]: Without dead ends: 800 [2022-11-21 16:16:40,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:16:40,908 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1329 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 4432 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 4432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:40,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 2261 Invalid, 4847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [415 Valid, 4432 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-21 16:16:40,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-11-21 16:16:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 553. [2022-11-21 16:16:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 435 states have (on average 1.6) internal successors, (696), 452 states have internal predecessors, (696), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:41,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 881 transitions. [2022-11-21 16:16:41,027 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 881 transitions. Word has length 110 [2022-11-21 16:16:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:41,028 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 881 transitions. [2022-11-21 16:16:41,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 881 transitions. [2022-11-21 16:16:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 16:16:41,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:41,032 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:41,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:16:41,032 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1583519502, now seen corresponding path program 1 times [2022-11-21 16:16:41,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:41,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540053445] [2022-11-21 16:16:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:16:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 16:16:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:16:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:16:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:16:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:16:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:41,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:41,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540053445] [2022-11-21 16:16:41,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540053445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:41,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:41,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932300764] [2022-11-21 16:16:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:41,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:41,304 INFO L87 Difference]: Start difference. First operand 553 states and 881 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:45,695 INFO L93 Difference]: Finished difference Result 1264 states and 2036 transitions. [2022-11-21 16:16:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:16:45,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-11-21 16:16:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:45,700 INFO L225 Difference]: With dead ends: 1264 [2022-11-21 16:16:45,700 INFO L226 Difference]: Without dead ends: 772 [2022-11-21 16:16:45,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:16:45,704 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 1310 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:45,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 1219 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-21 16:16:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-11-21 16:16:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 553. [2022-11-21 16:16:45,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 435 states have (on average 1.5885057471264368) internal successors, (691), 452 states have internal predecessors, (691), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:45,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 876 transitions. [2022-11-21 16:16:45,817 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 876 transitions. Word has length 110 [2022-11-21 16:16:45,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:45,817 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 876 transitions. [2022-11-21 16:16:45,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 876 transitions. [2022-11-21 16:16:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-21 16:16:45,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:45,821 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:45,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:16:45,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:45,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:45,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1922365613, now seen corresponding path program 1 times [2022-11-21 16:16:45,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:45,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499541349] [2022-11-21 16:16:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:45,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:16:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:16:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:16:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:46,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:16:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:16:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:16:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:46,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:46,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499541349] [2022-11-21 16:16:46,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499541349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:46,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:46,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:16:46,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419086171] [2022-11-21 16:16:46,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:46,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:16:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:46,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:16:46,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:46,198 INFO L87 Difference]: Start difference. First operand 553 states and 876 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:52,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:52,030 INFO L93 Difference]: Finished difference Result 1286 states and 2059 transitions. [2022-11-21 16:16:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:16:52,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2022-11-21 16:16:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:52,036 INFO L225 Difference]: With dead ends: 1286 [2022-11-21 16:16:52,036 INFO L226 Difference]: Without dead ends: 809 [2022-11-21 16:16:52,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:16:52,038 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 1324 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 4397 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 4814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 4397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:52,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 2201 Invalid, 4814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [417 Valid, 4397 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-21 16:16:52,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-11-21 16:16:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 561. [2022-11-21 16:16:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 443 states have (on average 1.5756207674943568) internal successors, (698), 460 states have internal predecessors, (698), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2022-11-21 16:16:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 883 transitions. [2022-11-21 16:16:52,167 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 883 transitions. Word has length 111 [2022-11-21 16:16:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:52,167 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 883 transitions. [2022-11-21 16:16:52,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:16:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 883 transitions. [2022-11-21 16:16:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-21 16:16:52,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:52,171 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:52,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:16:52,172 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:52,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:52,173 INFO L85 PathProgramCache]: Analyzing trace with hash -304821619, now seen corresponding path program 1 times [2022-11-21 16:16:52,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:52,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957042087] [2022-11-21 16:16:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:52,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:16:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:16:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:16:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-21 16:16:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:16:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:16:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:52,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:52,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957042087] [2022-11-21 16:16:52,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957042087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:52,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:52,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 16:16:52,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301320900] [2022-11-21 16:16:52,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:52,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:16:52,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:52,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:16:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:16:52,447 INFO L87 Difference]: Start difference. First operand 561 states and 883 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:16:56,950 INFO L93 Difference]: Finished difference Result 1320 states and 2093 transitions. [2022-11-21 16:16:56,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:16:56,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-21 16:16:56,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:16:56,955 INFO L225 Difference]: With dead ends: 1320 [2022-11-21 16:16:56,955 INFO L226 Difference]: Without dead ends: 756 [2022-11-21 16:16:56,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:16:56,958 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1245 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:16:56,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1201 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2289 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-21 16:16:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-11-21 16:16:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 542. [2022-11-21 16:16:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 427 states have (on average 1.5807962529274004) internal successors, (675), 442 states have internal predecessors, (675), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:16:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 856 transitions. [2022-11-21 16:16:57,107 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 856 transitions. Word has length 111 [2022-11-21 16:16:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:16:57,107 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 856 transitions. [2022-11-21 16:16:57,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 16:16:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 856 transitions. [2022-11-21 16:16:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-21 16:16:57,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:16:57,111 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:16:57,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:16:57,111 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:16:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:16:57,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2039414027, now seen corresponding path program 1 times [2022-11-21 16:16:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:16:57,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343072540] [2022-11-21 16:16:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:16:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:16:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:16:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:16:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 16:16:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 16:16:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:16:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-21 16:16:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-21 16:16:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:16:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 16:16:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:16:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-21 16:16:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:16:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343072540] [2022-11-21 16:16:57,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343072540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:16:57,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:16:57,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:16:57,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812981335] [2022-11-21 16:16:57,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:16:57,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:16:57,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:16:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:16:57,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:16:57,510 INFO L87 Difference]: Start difference. First operand 542 states and 856 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:17:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:03,130 INFO L93 Difference]: Finished difference Result 1267 states and 2018 transitions. [2022-11-21 16:17:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:17:03,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-11-21 16:17:03,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:03,133 INFO L225 Difference]: With dead ends: 1267 [2022-11-21 16:17:03,133 INFO L226 Difference]: Without dead ends: 789 [2022-11-21 16:17:03,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:17:03,135 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1283 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 4315 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 4724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 4315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:03,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 2289 Invalid, 4724 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [409 Valid, 4315 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-21 16:17:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2022-11-21 16:17:03,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 552. [2022-11-21 16:17:03,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 437 states have (on average 1.5675057208237986) internal successors, (685), 452 states have internal predecessors, (685), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-11-21 16:17:03,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 866 transitions. [2022-11-21 16:17:03,265 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 866 transitions. Word has length 112 [2022-11-21 16:17:03,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:03,266 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 866 transitions. [2022-11-21 16:17:03,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 16:17:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 866 transitions. [2022-11-21 16:17:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-21 16:17:03,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:03,269 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:03,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:17:03,270 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:03,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1135066562, now seen corresponding path program 1 times [2022-11-21 16:17:03,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:03,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720473890] [2022-11-21 16:17:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:17:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:17:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 16:17:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:17:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 16:17:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:17:03,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720473890] [2022-11-21 16:17:03,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720473890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:03,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899569058] [2022-11-21 16:17:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:03,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:03,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:03,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:03,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:17:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:03,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:17:03,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:17:04,058 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:04,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899569058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:04,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:04,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-21 16:17:04,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393174277] [2022-11-21 16:17:04,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:04,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:04,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:04,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:04,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:17:04,062 INFO L87 Difference]: Start difference. First operand 552 states and 866 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:04,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:04,792 INFO L93 Difference]: Finished difference Result 1036 states and 1674 transitions. [2022-11-21 16:17:04,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:04,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2022-11-21 16:17:04,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:04,796 INFO L225 Difference]: With dead ends: 1036 [2022-11-21 16:17:04,797 INFO L226 Difference]: Without dead ends: 560 [2022-11-21 16:17:04,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:17:04,800 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 758 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:04,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2007 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:17:04,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-21 16:17:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-11-21 16:17:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 444 states have (on average 1.5698198198198199) internal successors, (697), 459 states have internal predecessors, (697), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2022-11-21 16:17:04,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 879 transitions. [2022-11-21 16:17:04,970 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 879 transitions. Word has length 113 [2022-11-21 16:17:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:04,970 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 879 transitions. [2022-11-21 16:17:04,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 879 transitions. [2022-11-21 16:17:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 16:17:04,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:04,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:04,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-21 16:17:05,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 16:17:05,182 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:05,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:05,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2061669059, now seen corresponding path program 1 times [2022-11-21 16:17:05,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:05,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846434672] [2022-11-21 16:17:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:05,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 16:17:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:17:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-21 16:17:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:17:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 16:17:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,451 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 16:17:05,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:05,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846434672] [2022-11-21 16:17:05,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846434672] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:05,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673633931] [2022-11-21 16:17:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:05,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:05,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:05,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:05,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:17:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:05,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:17:05,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-21 16:17:05,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:05,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673633931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:05,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:05,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-21 16:17:05,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079688807] [2022-11-21 16:17:05,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:05,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:05,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:05,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:05,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:17:05,893 INFO L87 Difference]: Start difference. First operand 560 states and 879 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:06,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:06,591 INFO L93 Difference]: Finished difference Result 1052 states and 1697 transitions. [2022-11-21 16:17:06,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:06,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-11-21 16:17:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:06,596 INFO L225 Difference]: With dead ends: 1052 [2022-11-21 16:17:06,596 INFO L226 Difference]: Without dead ends: 568 [2022-11-21 16:17:06,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:17:06,600 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 771 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:06,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 2007 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:17:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-21 16:17:06,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2022-11-21 16:17:06,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 451 states have (on average 1.5720620842572062) internal successors, (709), 466 states have internal predecessors, (709), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2022-11-21 16:17:06,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 892 transitions. [2022-11-21 16:17:06,757 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 892 transitions. Word has length 116 [2022-11-21 16:17:06,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:06,757 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 892 transitions. [2022-11-21 16:17:06,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 892 transitions. [2022-11-21 16:17:06,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-21 16:17:06,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:06,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:06,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-21 16:17:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-21 16:17:06,969 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:06,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:06,969 INFO L85 PathProgramCache]: Analyzing trace with hash -427684002, now seen corresponding path program 1 times [2022-11-21 16:17:06,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:06,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621393947] [2022-11-21 16:17:06,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:06,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:17:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:17:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 16:17:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:17:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:17:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-21 16:17:07,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:07,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621393947] [2022-11-21 16:17:07,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621393947] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:07,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650032259] [2022-11-21 16:17:07,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:07,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:07,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:07,276 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:07,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:17:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:07,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:17:07,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:07,681 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-21 16:17:07,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:07,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650032259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:07,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:07,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-21 16:17:07,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084322486] [2022-11-21 16:17:07,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:07,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:07,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:07,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:07,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:17:07,684 INFO L87 Difference]: Start difference. First operand 568 states and 892 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:08,313 INFO L93 Difference]: Finished difference Result 1068 states and 1720 transitions. [2022-11-21 16:17:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:08,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-21 16:17:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:08,317 INFO L225 Difference]: With dead ends: 1068 [2022-11-21 16:17:08,317 INFO L226 Difference]: Without dead ends: 576 [2022-11-21 16:17:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:17:08,319 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 759 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:08,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2007 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:17:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-11-21 16:17:08,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2022-11-21 16:17:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 458 states have (on average 1.574235807860262) internal successors, (721), 473 states have internal predecessors, (721), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2022-11-21 16:17:08,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 905 transitions. [2022-11-21 16:17:08,439 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 905 transitions. Word has length 119 [2022-11-21 16:17:08,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:08,440 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 905 transitions. [2022-11-21 16:17:08,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:08,440 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 905 transitions. [2022-11-21 16:17:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-21 16:17:08,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:08,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:08,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:08,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:08,651 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:08,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:08,652 INFO L85 PathProgramCache]: Analyzing trace with hash -33723247, now seen corresponding path program 1 times [2022-11-21 16:17:08,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:08,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399499831] [2022-11-21 16:17:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:08,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 16:17:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:17:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:17:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-21 16:17:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 16:17:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 16:17:08,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:08,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399499831] [2022-11-21 16:17:08,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399499831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:08,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407207228] [2022-11-21 16:17:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:08,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:08,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:08,916 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:08,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:17:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:09,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 16:17:09,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 16:17:09,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:09,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407207228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:09,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:09,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2022-11-21 16:17:09,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905686345] [2022-11-21 16:17:09,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:09,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:09,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:09,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:17:09,344 INFO L87 Difference]: Start difference. First operand 576 states and 905 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:09,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:09,945 INFO L93 Difference]: Finished difference Result 1084 states and 1743 transitions. [2022-11-21 16:17:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:09,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2022-11-21 16:17:09,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:09,949 INFO L225 Difference]: With dead ends: 1084 [2022-11-21 16:17:09,950 INFO L226 Difference]: Without dead ends: 584 [2022-11-21 16:17:09,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:17:09,954 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 758 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:09,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2007 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 16:17:09,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-11-21 16:17:10,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2022-11-21 16:17:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 465 states have (on average 1.5763440860215054) internal successors, (733), 480 states have internal predecessors, (733), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2022-11-21 16:17:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 918 transitions. [2022-11-21 16:17:10,108 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 918 transitions. Word has length 122 [2022-11-21 16:17:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:10,108 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 918 transitions. [2022-11-21 16:17:10,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 918 transitions. [2022-11-21 16:17:10,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 16:17:10,111 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:10,112 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:10,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:10,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:10,319 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:10,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:10,320 INFO L85 PathProgramCache]: Analyzing trace with hash -517842182, now seen corresponding path program 1 times [2022-11-21 16:17:10,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:10,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384761551] [2022-11-21 16:17:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:10,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:17:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:17:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:17:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-21 16:17:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:11,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384761551] [2022-11-21 16:17:11,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384761551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:11,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836382184] [2022-11-21 16:17:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:11,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:11,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:11,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:11,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 16:17:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:11,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:17:11,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 16:17:11,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:11,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836382184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:11,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:11,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2022-11-21 16:17:11,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64335710] [2022-11-21 16:17:11,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:11,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:11,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:11,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:17:11,437 INFO L87 Difference]: Start difference. First operand 584 states and 918 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:11,648 INFO L93 Difference]: Finished difference Result 1269 states and 2003 transitions. [2022-11-21 16:17:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 125 [2022-11-21 16:17:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:11,654 INFO L225 Difference]: With dead ends: 1269 [2022-11-21 16:17:11,654 INFO L226 Difference]: Without dead ends: 761 [2022-11-21 16:17:11,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:17:11,657 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 536 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:11,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1308 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:11,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-21 16:17:11,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 759. [2022-11-21 16:17:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 605 states have (on average 1.5388429752066115) internal successors, (931), 618 states have internal predecessors, (931), 113 states have call successors, (113), 42 states have call predecessors, (113), 40 states have return successors, (128), 110 states have call predecessors, (128), 111 states have call successors, (128) [2022-11-21 16:17:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1172 transitions. [2022-11-21 16:17:11,835 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1172 transitions. Word has length 125 [2022-11-21 16:17:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:11,836 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1172 transitions. [2022-11-21 16:17:11,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-21 16:17:11,836 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1172 transitions. [2022-11-21 16:17:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 16:17:11,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:11,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:11,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:12,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-21 16:17:12,052 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:12,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:12,052 INFO L85 PathProgramCache]: Analyzing trace with hash -719666116, now seen corresponding path program 1 times [2022-11-21 16:17:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:12,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917204100] [2022-11-21 16:17:12,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:12,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:17:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:17:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 16:17:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,640 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-21 16:17:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:12,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917204100] [2022-11-21 16:17:12,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917204100] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:12,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047330305] [2022-11-21 16:17:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:12,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:12,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:12,645 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:12,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 16:17:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:12,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-21 16:17:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-21 16:17:13,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:13,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047330305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:13,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:13,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2022-11-21 16:17:13,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290038331] [2022-11-21 16:17:13,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:13,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:17:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:13,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:17:13,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:17:13,170 INFO L87 Difference]: Start difference. First operand 759 states and 1172 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:17:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:14,124 INFO L93 Difference]: Finished difference Result 2123 states and 3362 transitions. [2022-11-21 16:17:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:14,127 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2022-11-21 16:17:14,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:14,135 INFO L225 Difference]: With dead ends: 2123 [2022-11-21 16:17:14,136 INFO L226 Difference]: Without dead ends: 1441 [2022-11-21 16:17:14,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:17:14,139 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 931 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 3560 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:14,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 3560 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 16:17:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2022-11-21 16:17:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1432. [2022-11-21 16:17:14,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1136 states have (on average 1.5554577464788732) internal successors, (1767), 1161 states have internal predecessors, (1767), 217 states have call successors, (217), 80 states have call predecessors, (217), 78 states have return successors, (265), 214 states have call predecessors, (265), 213 states have call successors, (265) [2022-11-21 16:17:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 2249 transitions. [2022-11-21 16:17:14,390 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 2249 transitions. Word has length 125 [2022-11-21 16:17:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:14,390 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 2249 transitions. [2022-11-21 16:17:14,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 16:17:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 2249 transitions. [2022-11-21 16:17:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-21 16:17:14,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:14,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:14,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-21 16:17:14,600 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1839604388, now seen corresponding path program 1 times [2022-11-21 16:17:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:14,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82935064] [2022-11-21 16:17:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:17:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:17:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 16:17:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:17:15,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:15,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82935064] [2022-11-21 16:17:15,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82935064] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:15,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249362823] [2022-11-21 16:17:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:15,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:15,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:15,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:15,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 16:17:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:15,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 16:17:15,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 16:17:15,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:15,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249362823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:15,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:15,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-21 16:17:15,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117275377] [2022-11-21 16:17:15,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:15,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:15,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:15,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:15,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:15,635 INFO L87 Difference]: Start difference. First operand 1432 states and 2249 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 16:17:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:16,462 INFO L93 Difference]: Finished difference Result 2805 states and 4467 transitions. [2022-11-21 16:17:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:17:16,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-21 16:17:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:16,471 INFO L225 Difference]: With dead ends: 2805 [2022-11-21 16:17:16,471 INFO L226 Difference]: Without dead ends: 1450 [2022-11-21 16:17:16,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:17:16,478 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 743 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:16,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 3459 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 16:17:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-11-21 16:17:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1442. [2022-11-21 16:17:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.552539404553415) internal successors, (1773), 1170 states have internal predecessors, (1773), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:16,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2267 transitions. [2022-11-21 16:17:16,841 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2267 transitions. Word has length 127 [2022-11-21 16:17:16,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:16,842 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2267 transitions. [2022-11-21 16:17:16,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 16:17:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2267 transitions. [2022-11-21 16:17:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-21 16:17:16,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:16,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:16,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:17,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:17,052 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:17,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash 85788211, now seen corresponding path program 1 times [2022-11-21 16:17:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:17,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471188440] [2022-11-21 16:17:17,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:17,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:17:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:17:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 16:17:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:17:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:17:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471188440] [2022-11-21 16:17:17,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471188440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:17,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606819808] [2022-11-21 16:17:17,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:17,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:17,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:17,604 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:17,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 16:17:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:17,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 16:17:17,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 16:17:17,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:17,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606819808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:17,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:17,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-21 16:17:17,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631267102] [2022-11-21 16:17:17,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:17,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:17,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:17,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:17,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:17:17,886 INFO L87 Difference]: Start difference. First operand 1442 states and 2267 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:17:18,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:18,467 INFO L93 Difference]: Finished difference Result 3479 states and 5558 transitions. [2022-11-21 16:17:18,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:18,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-11-21 16:17:18,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:18,481 INFO L225 Difference]: With dead ends: 3479 [2022-11-21 16:17:18,481 INFO L226 Difference]: Without dead ends: 2116 [2022-11-21 16:17:18,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-21 16:17:18,489 INFO L413 NwaCegarLoop]: 1550 mSDtfsCounter, 755 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:18,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2360 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-11-21 16:17:18,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1442. [2022-11-21 16:17:18,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.5516637478108581) internal successors, (1772), 1170 states have internal predecessors, (1772), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2266 transitions. [2022-11-21 16:17:18,873 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2266 transitions. Word has length 132 [2022-11-21 16:17:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:18,873 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2266 transitions. [2022-11-21 16:17:18,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:17:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2266 transitions. [2022-11-21 16:17:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-21 16:17:18,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:18,875 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:18,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:19,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:19,079 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:19,080 INFO L85 PathProgramCache]: Analyzing trace with hash 787388085, now seen corresponding path program 1 times [2022-11-21 16:17:19,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:19,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958757586] [2022-11-21 16:17:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:19,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 16:17:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:17:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 16:17:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:17:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:17:19,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958757586] [2022-11-21 16:17:19,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958757586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293623925] [2022-11-21 16:17:19,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:19,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:19,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:19,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 16:17:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:19,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-21 16:17:19,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-21 16:17:20,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:20,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293623925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:20,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:20,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-21 16:17:20,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306595965] [2022-11-21 16:17:20,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:20,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:20,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:20,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:20,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:20,036 INFO L87 Difference]: Start difference. First operand 1442 states and 2266 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:17:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:20,500 INFO L93 Difference]: Finished difference Result 2815 states and 4488 transitions. [2022-11-21 16:17:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:20,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-11-21 16:17:20,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:20,508 INFO L225 Difference]: With dead ends: 2815 [2022-11-21 16:17:20,509 INFO L226 Difference]: Without dead ends: 1454 [2022-11-21 16:17:20,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-11-21 16:17:20,516 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 354 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:20,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3370 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-11-21 16:17:20,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1442. [2022-11-21 16:17:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1142 states have (on average 1.5481611208406305) internal successors, (1768), 1170 states have internal predecessors, (1768), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2262 transitions. [2022-11-21 16:17:20,933 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2262 transitions. Word has length 132 [2022-11-21 16:17:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2262 transitions. [2022-11-21 16:17:20,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:17:20,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2262 transitions. [2022-11-21 16:17:20,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-21 16:17:20,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:20,937 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:20,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:21,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:21,145 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:21,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:21,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1914532507, now seen corresponding path program 1 times [2022-11-21 16:17:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:21,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107086873] [2022-11-21 16:17:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:21,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:17:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:17:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:17:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-21 16:17:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 16:17:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 16:17:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 16:17:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 16:17:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-21 16:17:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-21 16:17:21,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:21,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107086873] [2022-11-21 16:17:21,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107086873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:21,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379972939] [2022-11-21 16:17:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:21,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:21,667 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:21,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 16:17:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:21,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:17:21,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-21 16:17:21,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:21,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379972939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:21,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:21,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-21 16:17:21,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152452879] [2022-11-21 16:17:21,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:21,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:21,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:17:21,976 INFO L87 Difference]: Start difference. First operand 1442 states and 2262 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:22,459 INFO L93 Difference]: Finished difference Result 2884 states and 4592 transitions. [2022-11-21 16:17:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:22,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2022-11-21 16:17:22,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:22,468 INFO L225 Difference]: With dead ends: 2884 [2022-11-21 16:17:22,468 INFO L226 Difference]: Without dead ends: 1520 [2022-11-21 16:17:22,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:22,475 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 213 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:22,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2208 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:17:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2022-11-21 16:17:22,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1520. [2022-11-21 16:17:22,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1218 states have (on average 1.5714285714285714) internal successors, (1914), 1246 states have internal predecessors, (1914), 219 states have call successors, (219), 83 states have call predecessors, (219), 82 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:22,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2408 transitions. [2022-11-21 16:17:22,872 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2408 transitions. Word has length 155 [2022-11-21 16:17:22,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:22,872 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2408 transitions. [2022-11-21 16:17:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:22,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2408 transitions. [2022-11-21 16:17:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-21 16:17:22,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:22,876 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:22,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:23,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:23,081 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 961042028, now seen corresponding path program 1 times [2022-11-21 16:17:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:23,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210306339] [2022-11-21 16:17:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:17:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:17:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:17:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 16:17:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 16:17:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:17:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-21 16:17:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:17:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 16:17:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 16:17:23,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:23,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210306339] [2022-11-21 16:17:23,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210306339] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:23,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657714474] [2022-11-21 16:17:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:23,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:23,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:23,609 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:23,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 16:17:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:23,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:17:23,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-21 16:17:23,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:23,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657714474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:23,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:23,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-21 16:17:23,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466439561] [2022-11-21 16:17:23,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:23,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:23,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:23,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:23,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:17:23,924 INFO L87 Difference]: Start difference. First operand 1520 states and 2408 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:24,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:24,406 INFO L93 Difference]: Finished difference Result 3040 states and 4882 transitions. [2022-11-21 16:17:24,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:24,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2022-11-21 16:17:24,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:24,416 INFO L225 Difference]: With dead ends: 3040 [2022-11-21 16:17:24,416 INFO L226 Difference]: Without dead ends: 1598 [2022-11-21 16:17:24,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:24,421 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 211 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:24,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2208 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:17:24,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-21 16:17:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1598. [2022-11-21 16:17:24,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1294 states have (on average 1.5919629057187017) internal successors, (2060), 1322 states have internal predecessors, (2060), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:24,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2554 transitions. [2022-11-21 16:17:24,792 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2554 transitions. Word has length 160 [2022-11-21 16:17:24,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:24,793 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2554 transitions. [2022-11-21 16:17:24,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2554 transitions. [2022-11-21 16:17:24,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-21 16:17:24,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:24,797 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:24,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:25,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-21 16:17:25,002 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:25,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash -272186404, now seen corresponding path program 1 times [2022-11-21 16:17:25,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:25,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547408315] [2022-11-21 16:17:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:17:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:17:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:17:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:17:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:17:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-21 16:17:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-21 16:17:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-21 16:17:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:25,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-21 16:17:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-11-21 16:17:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:25,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547408315] [2022-11-21 16:17:25,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547408315] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:25,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280160341] [2022-11-21 16:17:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:25,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:25,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:25,516 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:25,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 16:17:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:25,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:17:25,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-21 16:17:25,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:25,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280160341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:25,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:25,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-21 16:17:25,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930191017] [2022-11-21 16:17:25,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:25,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:25,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:25,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:25,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:17:25,828 INFO L87 Difference]: Start difference. First operand 1598 states and 2554 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:26,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:26,270 INFO L93 Difference]: Finished difference Result 3196 states and 5172 transitions. [2022-11-21 16:17:26,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:26,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2022-11-21 16:17:26,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:26,279 INFO L225 Difference]: With dead ends: 3196 [2022-11-21 16:17:26,279 INFO L226 Difference]: Without dead ends: 1676 [2022-11-21 16:17:26,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:26,286 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 209 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:26,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2208 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:17:26,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-11-21 16:17:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2022-11-21 16:17:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1370 states have (on average 1.6102189781021898) internal successors, (2206), 1398 states have internal predecessors, (2206), 219 states have call successors, (219), 87 states have call predecessors, (219), 86 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2700 transitions. [2022-11-21 16:17:26,573 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2700 transitions. Word has length 164 [2022-11-21 16:17:26,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:26,573 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2700 transitions. [2022-11-21 16:17:26,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:26,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2700 transitions. [2022-11-21 16:17:26,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-21 16:17:26,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:26,576 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:26,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:26,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-21 16:17:26,777 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash -224721989, now seen corresponding path program 1 times [2022-11-21 16:17:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:26,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910995008] [2022-11-21 16:17:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:26,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:17:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:17:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:17:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:17:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:17:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 16:17:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-21 16:17:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 16:17:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-21 16:17:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,260 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-21 16:17:27,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:27,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910995008] [2022-11-21 16:17:27,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910995008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:27,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726866319] [2022-11-21 16:17:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:27,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:27,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:27,263 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:27,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-21 16:17:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:17:27,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:27,575 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-21 16:17:27,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:27,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726866319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:27,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:27,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-21 16:17:27,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917318489] [2022-11-21 16:17:27,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:27,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:27,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:27,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:27,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:17:27,579 INFO L87 Difference]: Start difference. First operand 1676 states and 2700 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:28,181 INFO L93 Difference]: Finished difference Result 3352 states and 5462 transitions. [2022-11-21 16:17:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:28,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2022-11-21 16:17:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:28,188 INFO L225 Difference]: With dead ends: 3352 [2022-11-21 16:17:28,188 INFO L226 Difference]: Without dead ends: 1754 [2022-11-21 16:17:28,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:28,193 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 207 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:28,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2208 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:17:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2022-11-21 16:17:28,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2022-11-21 16:17:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1446 states have (on average 1.6265560165975104) internal successors, (2352), 1474 states have internal predecessors, (2352), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2846 transitions. [2022-11-21 16:17:28,523 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2846 transitions. Word has length 167 [2022-11-21 16:17:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:28,523 INFO L495 AbstractCegarLoop]: Abstraction has 1754 states and 2846 transitions. [2022-11-21 16:17:28,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2846 transitions. [2022-11-21 16:17:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-21 16:17:28,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:28,526 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:17:28,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:28,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-21 16:17:28,726 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:28,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:28,727 INFO L85 PathProgramCache]: Analyzing trace with hash -431239223, now seen corresponding path program 1 times [2022-11-21 16:17:28,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:28,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636166560] [2022-11-21 16:17:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:17:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:17:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 16:17:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 16:17:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 16:17:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:17:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:17:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-21 16:17:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-21 16:17:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-11-21 16:17:29,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:29,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636166560] [2022-11-21 16:17:29,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636166560] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:29,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030740172] [2022-11-21 16:17:29,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:29,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:29,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:29,212 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:29,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-21 16:17:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:29,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:17:29,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-21 16:17:29,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:29,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030740172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:29,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:29,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-11-21 16:17:29,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585287547] [2022-11-21 16:17:29,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:29,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:29,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:29,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:29,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:17:29,517 INFO L87 Difference]: Start difference. First operand 1754 states and 2846 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:29,901 INFO L93 Difference]: Finished difference Result 3492 states and 5737 transitions. [2022-11-21 16:17:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:29,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2022-11-21 16:17:29,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:29,908 INFO L225 Difference]: With dead ends: 3492 [2022-11-21 16:17:29,908 INFO L226 Difference]: Without dead ends: 1816 [2022-11-21 16:17:29,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:17:29,915 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 69 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:29,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 2439 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2022-11-21 16:17:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1762. [2022-11-21 16:17:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1454 states have (on average 1.623108665749656) internal successors, (2360), 1482 states have internal predecessors, (2360), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2022-11-21 16:17:30,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2854 transitions. [2022-11-21 16:17:30,348 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2854 transitions. Word has length 169 [2022-11-21 16:17:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:30,349 INFO L495 AbstractCegarLoop]: Abstraction has 1762 states and 2854 transitions. [2022-11-21 16:17:30,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-21 16:17:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2854 transitions. [2022-11-21 16:17:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-21 16:17:30,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:30,352 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:30,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:30,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:30,552 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:30,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:30,553 INFO L85 PathProgramCache]: Analyzing trace with hash -330209017, now seen corresponding path program 1 times [2022-11-21 16:17:30,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:30,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053418831] [2022-11-21 16:17:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:30,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:17:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:17:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:17:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:17:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:17:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:17:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:17:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 16:17:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 16:17:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-11-21 16:17:30,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053418831] [2022-11-21 16:17:30,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053418831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480979950] [2022-11-21 16:17:30,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:30,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:30,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:30,954 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:30,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-21 16:17:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:31,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-21 16:17:31,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-21 16:17:31,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:17:31,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480979950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:31,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:17:31,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-11-21 16:17:31,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052709797] [2022-11-21 16:17:31,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:31,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:17:31,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:17:31,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:17:31,545 INFO L87 Difference]: Start difference. First operand 1762 states and 2854 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-21 16:17:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:35,291 INFO L93 Difference]: Finished difference Result 5435 states and 9009 transitions. [2022-11-21 16:17:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:17:35,292 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2022-11-21 16:17:35,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:35,320 INFO L225 Difference]: With dead ends: 5435 [2022-11-21 16:17:35,320 INFO L226 Difference]: Without dead ends: 3379 [2022-11-21 16:17:35,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2022-11-21 16:17:35,333 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1840 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 4053 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 4503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 4053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:35,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 2401 Invalid, 4503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 4053 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-21 16:17:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2022-11-21 16:17:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3299. [2022-11-21 16:17:36,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2664 states have (on average 1.640015015015015) internal successors, (4369), 2746 states have internal predecessors, (4369), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2022-11-21 16:17:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 5423 transitions. [2022-11-21 16:17:36,179 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 5423 transitions. Word has length 175 [2022-11-21 16:17:36,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:36,179 INFO L495 AbstractCegarLoop]: Abstraction has 3299 states and 5423 transitions. [2022-11-21 16:17:36,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-21 16:17:36,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 5423 transitions. [2022-11-21 16:17:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-21 16:17:36,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:36,189 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:36,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-21 16:17:36,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-11-21 16:17:36,398 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:36,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1355098377, now seen corresponding path program 1 times [2022-11-21 16:17:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:36,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022073619] [2022-11-21 16:17:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:36,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:17:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:17:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 16:17:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 16:17:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 16:17:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 16:17:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 16:17:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 16:17:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 16:17:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 16:17:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 16:17:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 16:17:36,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:36,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022073619] [2022-11-21 16:17:36,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022073619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:36,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:36,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:17:36,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912730195] [2022-11-21 16:17:36,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:36,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:17:36,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:17:36,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:17:36,783 INFO L87 Difference]: Start difference. First operand 3299 states and 5423 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 16:17:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:42,797 INFO L93 Difference]: Finished difference Result 7491 states and 12473 transitions. [2022-11-21 16:17:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:17:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 175 [2022-11-21 16:17:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:42,824 INFO L225 Difference]: With dead ends: 7491 [2022-11-21 16:17:42,824 INFO L226 Difference]: Without dead ends: 4206 [2022-11-21 16:17:42,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:17:42,836 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 788 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 3512 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 3657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 3512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:42,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2977 Invalid, 3657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [145 Valid, 3512 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-21 16:17:42,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4206 states. [2022-11-21 16:17:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4206 to 3313. [2022-11-21 16:17:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2678 states have (on average 1.628080657206871) internal successors, (4360), 2760 states have internal predecessors, (4360), 455 states have call successors, (455), 159 states have call predecessors, (455), 179 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2022-11-21 16:17:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 5414 transitions. [2022-11-21 16:17:43,695 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 5414 transitions. Word has length 175 [2022-11-21 16:17:43,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:43,695 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 5414 transitions. [2022-11-21 16:17:43,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 16:17:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 5414 transitions. [2022-11-21 16:17:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-21 16:17:43,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:43,709 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:43,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-21 16:17:43,709 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:43,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash -377214621, now seen corresponding path program 1 times [2022-11-21 16:17:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:43,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750891293] [2022-11-21 16:17:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:43,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 16:17:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-21 16:17:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-21 16:17:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 16:17:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 16:17:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-21 16:17:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 16:17:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 16:17:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 16:17:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-21 16:17:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-21 16:17:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 16:17:44,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:44,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750891293] [2022-11-21 16:17:44,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750891293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:44,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:44,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:17:44,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599465383] [2022-11-21 16:17:44,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:44,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:17:44,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:44,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:17:44,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:17:44,100 INFO L87 Difference]: Start difference. First operand 3313 states and 5414 transitions. Second operand has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 16:17:49,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,710 INFO L93 Difference]: Finished difference Result 7159 states and 11985 transitions. [2022-11-21 16:17:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:17:49,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 181 [2022-11-21 16:17:49,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,734 INFO L225 Difference]: With dead ends: 7159 [2022-11-21 16:17:49,735 INFO L226 Difference]: Without dead ends: 3730 [2022-11-21 16:17:49,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:17:49,796 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1375 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 3382 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 3382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 2896 Invalid, 3711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [329 Valid, 3382 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-21 16:17:49,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-21 16:17:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 2926. [2022-11-21 16:17:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2926 states, 2391 states have (on average 1.6729401923881222) internal successors, (4000), 2460 states have internal predecessors, (4000), 375 states have call successors, (375), 147 states have call predecessors, (375), 159 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2022-11-21 16:17:50,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2926 states to 2926 states and 4844 transitions. [2022-11-21 16:17:50,488 INFO L78 Accepts]: Start accepts. Automaton has 2926 states and 4844 transitions. Word has length 181 [2022-11-21 16:17:50,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:50,489 INFO L495 AbstractCegarLoop]: Abstraction has 2926 states and 4844 transitions. [2022-11-21 16:17:50,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.0) internal successors, (112), 6 states have internal predecessors, (112), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-21 16:17:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2926 states and 4844 transitions. [2022-11-21 16:17:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-11-21 16:17:50,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:50,506 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:50,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-21 16:17:50,507 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:17:50,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:50,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1648658740, now seen corresponding path program 1 times [2022-11-21 16:17:50,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:50,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929134271] [2022-11-21 16:17:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:50,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:17:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:17:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:17:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:17:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:17:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-21 16:17:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:17:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:17:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:17:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:17:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-11-21 16:17:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:17:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:17:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:17:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:17:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:17:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:17:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:17:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:17:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:17:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-11-21 16:17:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:17:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-11-21 16:17:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-11-21 16:17:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-11-21 16:17:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2022-11-21 16:17:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-11-21 16:17:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-11-21 16:17:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-11-21 16:17:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2022-11-21 16:17:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-11-21 16:17:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-11-21 16:17:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:17:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-11-21 16:17:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 66 proven. 121 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2022-11-21 16:17:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:51,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929134271] [2022-11-21 16:17:51,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929134271] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:17:51,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496922047] [2022-11-21 16:17:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:51,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:17:51,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:51,901 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:17:51,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-21 16:17:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:52,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3290 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 16:17:52,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:17:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 659 proven. 17 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-11-21 16:17:53,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:17:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 82 proven. 71 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2022-11-21 16:17:54,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496922047] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:17:54,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:17:54,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 35 [2022-11-21 16:17:54,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424213250] [2022-11-21 16:17:54,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:17:54,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-21 16:17:54,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-21 16:17:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1055, Unknown=0, NotChecked=0, Total=1190 [2022-11-21 16:17:54,365 INFO L87 Difference]: Start difference. First operand 2926 states and 4844 transitions. Second operand has 35 states, 33 states have (on average 14.424242424242424) internal successors, (476), 26 states have internal predecessors, (476), 19 states have call successors, (113), 12 states have call predecessors, (113), 15 states have return successors, (112), 23 states have call predecessors, (112), 19 states have call successors, (112) [2022-11-21 16:24:03,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:03,182 INFO L93 Difference]: Finished difference Result 35257 states and 75738 transitions. [2022-11-21 16:24:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 640 states. [2022-11-21 16:24:03,183 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 14.424242424242424) internal successors, (476), 26 states have internal predecessors, (476), 19 states have call successors, (113), 12 states have call predecessors, (113), 15 states have return successors, (112), 23 states have call predecessors, (112), 19 states have call successors, (112) Word has length 506 [2022-11-21 16:24:03,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:03,468 INFO L225 Difference]: With dead ends: 35257 [2022-11-21 16:24:03,469 INFO L226 Difference]: Without dead ends: 32298 [2022-11-21 16:24:03,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2102 GetRequests, 1431 SyntacticMatches, 2 SemanticMatches, 669 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210898 ImplicationChecksByTransitivity, 101.4s TimeCoverageRelationStatistics Valid=31019, Invalid=418551, Unknown=0, NotChecked=0, Total=449570 [2022-11-21 16:24:03,843 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 46159 mSDsluCounter, 32780 mSDsCounter, 0 mSdLazyCounter, 195198 mSolverCounterSat, 59119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46159 SdHoareTripleChecker+Valid, 36124 SdHoareTripleChecker+Invalid, 254317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.1s SdHoareTripleChecker+Time, 59119 IncrementalHoareTripleChecker+Valid, 195198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 242.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46159 Valid, 36124 Invalid, 254317 Unknown, 0 Unchecked, 2.1s Time], IncrementalHoareTripleChecker [59119 Valid, 195198 Invalid, 0 Unknown, 0 Unchecked, 242.7s Time] [2022-11-21 16:24:03,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32298 states. [2022-11-21 16:24:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32298 to 15290. [2022-11-21 16:24:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15290 states, 12470 states have (on average 1.6425020048115477) internal successors, (20482), 12828 states have internal predecessors, (20482), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 957 states have return successors, (2635), 1903 states have call predecessors, (2635), 1844 states have call successors, (2635) [2022-11-21 16:24:09,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15290 states to 15290 states and 24979 transitions. [2022-11-21 16:24:09,556 INFO L78 Accepts]: Start accepts. Automaton has 15290 states and 24979 transitions. Word has length 506 [2022-11-21 16:24:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:09,556 INFO L495 AbstractCegarLoop]: Abstraction has 15290 states and 24979 transitions. [2022-11-21 16:24:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 14.424242424242424) internal successors, (476), 26 states have internal predecessors, (476), 19 states have call successors, (113), 12 states have call predecessors, (113), 15 states have return successors, (112), 23 states have call predecessors, (112), 19 states have call successors, (112) [2022-11-21 16:24:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 15290 states and 24979 transitions. [2022-11-21 16:24:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-11-21 16:24:09,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:09,617 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:24:09,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:09,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:09,828 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:09,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:09,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1830801089, now seen corresponding path program 1 times [2022-11-21 16:24:09,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:09,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736746832] [2022-11-21 16:24:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:09,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:24:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:24:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:24:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:24:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:24:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:24:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:24:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:24:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:24:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:24:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:24:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 16:24:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:24:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:24:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-21 16:24:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-21 16:24:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:24:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 16:24:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 16:24:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-21 16:24:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-11-21 16:24:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:24:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-11-21 16:24:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-11-21 16:24:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2022-11-21 16:24:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 437 [2022-11-21 16:24:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-11-21 16:24:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-11-21 16:24:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2022-11-21 16:24:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-11-21 16:24:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2022-11-21 16:24:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-11-21 16:24:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-11-21 16:24:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 67 proven. 112 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2022-11-21 16:24:11,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:11,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736746832] [2022-11-21 16:24:11,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736746832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:11,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442285729] [2022-11-21 16:24:11,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:11,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:11,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:11,090 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:11,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-21 16:24:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:11,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 3354 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:24:11,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 688 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-21 16:24:11,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:24:11,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442285729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:24:11,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:24:11,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2022-11-21 16:24:11,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049987453] [2022-11-21 16:24:11,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:24:11,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:24:11,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:11,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:24:11,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:24:11,776 INFO L87 Difference]: Start difference. First operand 15290 states and 24979 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-21 16:24:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:24:17,094 INFO L93 Difference]: Finished difference Result 32872 states and 54144 transitions. [2022-11-21 16:24:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:24:17,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 526 [2022-11-21 16:24:17,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:24:17,181 INFO L225 Difference]: With dead ends: 32872 [2022-11-21 16:24:17,181 INFO L226 Difference]: Without dead ends: 17654 [2022-11-21 16:24:17,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:24:17,239 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 165 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:24:17,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 4118 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:24:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17654 states. [2022-11-21 16:24:21,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17654 to 15432. [2022-11-21 16:24:21,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 12574 states have (on average 1.637187847940194) internal successors, (20586), 12948 states have internal predecessors, (20586), 1862 states have call successors, (1862), 822 states have call predecessors, (1862), 995 states have return successors, (2713), 1925 states have call predecessors, (2713), 1844 states have call successors, (2713) [2022-11-21 16:24:21,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 25161 transitions. [2022-11-21 16:24:21,451 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 25161 transitions. Word has length 526 [2022-11-21 16:24:21,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:24:21,452 INFO L495 AbstractCegarLoop]: Abstraction has 15432 states and 25161 transitions. [2022-11-21 16:24:21,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 5 states have internal predecessors, (235), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-11-21 16:24:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 25161 transitions. [2022-11-21 16:24:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-11-21 16:24:21,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:24:21,506 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 13, 13, 12, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:21,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-21 16:24:21,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:21,717 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:24:21,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:24:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash -248146485, now seen corresponding path program 1 times [2022-11-21 16:24:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:24:21,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708967407] [2022-11-21 16:24:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:21,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:24:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:24:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:24:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:24:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:24:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:24:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:24:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:24:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:24:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:24:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:24:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:24:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 16:24:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:24:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:24:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:24:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-21 16:24:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-21 16:24:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:24:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:24:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:24:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:24:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:24:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:24:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:24:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:24:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:24:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2022-11-21 16:24:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:24:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-11-21 16:24:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-11-21 16:24:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 461 [2022-11-21 16:24:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2022-11-21 16:24:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-11-21 16:24:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-11-21 16:24:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2022-11-21 16:24:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-11-21 16:24:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2022-11-21 16:24:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-11-21 16:24:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:24:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-11-21 16:24:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 96 proven. 166 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2022-11-21 16:24:22,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:24:22,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708967407] [2022-11-21 16:24:22,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708967407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:24:22,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876840123] [2022-11-21 16:24:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:24:22,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:24:22,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:24:22,806 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:24:22,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-21 16:24:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:24:23,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-21 16:24:23,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:24:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 1136 proven. 10 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-11-21 16:24:24,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 16:24:25,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 133 proven. 75 refuted. 0 times theorem prover too weak. 1467 trivial. 0 not checked. [2022-11-21 16:24:25,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876840123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 16:24:25,128 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 16:24:25,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 11] total 29 [2022-11-21 16:24:25,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906739733] [2022-11-21 16:24:25,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 16:24:25,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-21 16:24:25,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:24:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-21 16:24:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2022-11-21 16:24:25,131 INFO L87 Difference]: Start difference. First operand 15432 states and 25161 transitions. Second operand has 29 states, 28 states have (on average 18.5) internal successors, (518), 24 states have internal predecessors, (518), 15 states have call successors, (122), 11 states have call predecessors, (122), 17 states have return successors, (122), 17 states have call predecessors, (122), 15 states have call successors, (122) [2022-11-21 16:25:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:25:50,114 INFO L93 Difference]: Finished difference Result 69107 states and 126422 transitions. [2022-11-21 16:25:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-11-21 16:25:50,115 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 18.5) internal successors, (518), 24 states have internal predecessors, (518), 15 states have call successors, (122), 11 states have call predecessors, (122), 17 states have return successors, (122), 17 states have call predecessors, (122), 15 states have call successors, (122) Word has length 558 [2022-11-21 16:25:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:25:50,825 INFO L225 Difference]: With dead ends: 69107 [2022-11-21 16:25:50,826 INFO L226 Difference]: Without dead ends: 51851 [2022-11-21 16:25:51,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1271 SyntacticMatches, 5 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9468 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=4210, Invalid=19970, Unknown=0, NotChecked=0, Total=24180 [2022-11-21 16:25:51,017 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 20413 mSDsluCounter, 7124 mSDsCounter, 0 mSdLazyCounter, 33387 mSolverCounterSat, 13032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20413 SdHoareTripleChecker+Valid, 7882 SdHoareTripleChecker+Invalid, 46419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 13032 IncrementalHoareTripleChecker+Valid, 33387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:25:51,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20413 Valid, 7882 Invalid, 46419 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [13032 Valid, 33387 Invalid, 0 Unknown, 0 Unchecked, 44.4s Time] [2022-11-21 16:25:51,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51851 states. [2022-11-21 16:25:58,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51851 to 28594. [2022-11-21 16:25:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28594 states, 22954 states have (on average 1.6052539862333361) internal successors, (36847), 23634 states have internal predecessors, (36847), 3649 states have call successors, (3649), 1660 states have call predecessors, (3649), 1990 states have return successors, (5461), 3827 states have call predecessors, (5461), 3624 states have call successors, (5461) [2022-11-21 16:25:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28594 states to 28594 states and 45957 transitions. [2022-11-21 16:25:58,927 INFO L78 Accepts]: Start accepts. Automaton has 28594 states and 45957 transitions. Word has length 558 [2022-11-21 16:25:58,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:25:58,928 INFO L495 AbstractCegarLoop]: Abstraction has 28594 states and 45957 transitions. [2022-11-21 16:25:58,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 18.5) internal successors, (518), 24 states have internal predecessors, (518), 15 states have call successors, (122), 11 states have call predecessors, (122), 17 states have return successors, (122), 17 states have call predecessors, (122), 15 states have call successors, (122) [2022-11-21 16:25:58,929 INFO L276 IsEmpty]: Start isEmpty. Operand 28594 states and 45957 transitions. [2022-11-21 16:25:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-11-21 16:25:59,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:25:59,008 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 20, 16, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:25:59,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-21 16:25:59,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-21 16:25:59,219 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:25:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:25:59,219 INFO L85 PathProgramCache]: Analyzing trace with hash -136844954, now seen corresponding path program 1 times [2022-11-21 16:25:59,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:25:59,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346532074] [2022-11-21 16:25:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:25:59,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:25:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:25:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:25:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:25:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:25:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:25:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:25:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:25:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-21 16:25:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:26:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 16:26:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-21 16:26:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-21 16:26:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-21 16:26:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 16:26:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-21 16:26:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:26:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:26:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:26:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:26:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:26:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:26:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 16:26:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 16:26:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-11-21 16:26:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:26:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 16:26:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:26:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:26:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-21 16:26:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:26:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-21 16:26:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 16:26:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-21 16:26:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2022-11-21 16:26:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:26:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-11-21 16:26:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-11-21 16:26:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2022-11-21 16:26:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2022-11-21 16:26:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-11-21 16:26:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-11-21 16:26:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2022-11-21 16:26:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-11-21 16:26:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2022-11-21 16:26:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-11-21 16:26:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:26:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-11-21 16:26:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2631 backedges. 143 proven. 148 refuted. 0 times theorem prover too weak. 2340 trivial. 0 not checked. [2022-11-21 16:26:00,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:26:00,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346532074] [2022-11-21 16:26:00,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346532074] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:26:00,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323059354] [2022-11-21 16:26:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:26:00,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:26:00,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:26:00,240 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:26:00,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208fae72-9f7b-4619-8d23-61237a8ea5ab/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-21 16:26:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:26:00,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 16:26:00,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:26:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2631 backedges. 999 proven. 0 refuted. 0 times theorem prover too weak. 1632 trivial. 0 not checked. [2022-11-21 16:26:00,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:26:00,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323059354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:26:00,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:26:00,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-11-21 16:26:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954505581] [2022-11-21 16:26:00,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:26:00,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:26:00,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:26:00,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:26:00,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:26:00,892 INFO L87 Difference]: Start difference. First operand 28594 states and 45957 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)