./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:42:49,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:42:49,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:42:49,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:42:49,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:42:49,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:42:49,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:42:49,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:42:49,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:42:49,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:42:49,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:42:49,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:42:49,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:42:49,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:42:49,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:42:49,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:42:49,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:42:49,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:42:49,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:42:49,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:42:49,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:42:49,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:42:49,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:42:49,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:42:49,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:42:49,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:42:49,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:42:49,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:42:49,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:42:49,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:42:49,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:42:49,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:42:49,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:42:49,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:42:49,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:42:49,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:42:49,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:42:49,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:42:49,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:42:49,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:42:49,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:42:49,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 12:42:49,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:42:49,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:42:49,315 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:42:49,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:42:49,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:42:49,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:42:49,318 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:42:49,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:42:49,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:42:49,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:42:49,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:42:49,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:42:49,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:42:49,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:42:49,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:42:49,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:42:49,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:42:49,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:42:49,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:42:49,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:42:49,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:42:49,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:42:49,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:42:49,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:42:49,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:42:49,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:42:49,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:42:49,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:42:49,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:42:49,326 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_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2021-11-23 12:42:49,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:42:49,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:42:49,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:42:49,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:42:49,641 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:42:49,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-23 12:42:49,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/data/90ccf5614/f72eaa412bcd458293d3f99e0facb60f/FLAG98405dcf1 [2021-11-23 12:42:50,740 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:42:50,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-23 12:42:50,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/data/90ccf5614/f72eaa412bcd458293d3f99e0facb60f/FLAG98405dcf1 [2021-11-23 12:42:51,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/data/90ccf5614/f72eaa412bcd458293d3f99e0facb60f [2021-11-23 12:42:51,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:42:51,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:42:51,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:42:51,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:42:51,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:42:51,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:51" (1/1) ... [2021-11-23 12:42:51,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4001cddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:51, skipping insertion in model container [2021-11-23 12:42:51,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:42:51" (1/1) ... [2021-11-23 12:42:51,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:42:51,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:42:53,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-23 12:42:53,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:42:53,087 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:42:53,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-11-23 12:42:53,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:42:53,558 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:42:53,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53 WrapperNode [2021-11-23 12:42:53,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:42:53,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:42:53,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:42:53,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:42:53,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:53,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:55,499 INFO L137 Inliner]: procedures = 258, calls = 1803, calls flagged for inlining = 464, calls inlined = 6387, statements flattened = 64450 [2021-11-23 12:42:55,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:42:55,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:42:55,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:42:55,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:42:55,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:55,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:55,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:55,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:57,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:57,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:57,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:58,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:42:58,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:42:58,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:42:58,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:42:58,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (1/1) ... [2021-11-23 12:42:58,098 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:42:58,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:42:58,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:42:58,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d0cd25c-35e1-4dad-9e7c-5904037bfdd3/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:42:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 12:42:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 12:42:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-11-23 12:42:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-11-23 12:42:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-11-23 12:42:58,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-11-23 12:42:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-11-23 12:42:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-11-23 12:42:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 12:42:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 12:42:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-11-23 12:42:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-11-23 12:42:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-11-23 12:42:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-11-23 12:42:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:42:58,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-11-23 12:42:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-11-23 12:42:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 12:42:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-11-23 12:42:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-11-23 12:42:58,276 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-11-23 12:42:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-11-23 12:42:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-11-23 12:42:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-11-23 12:42:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:42:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 12:42:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-11-23 12:42:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-11-23 12:42:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-11-23 12:42:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-11-23 12:42:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 12:42:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-11-23 12:42:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-11-23 12:42:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 12:42:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-11-23 12:42:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-11-23 12:42:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:42:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-11-23 12:42:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-11-23 12:42:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:42:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-11-23 12:42:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-11-23 12:42:58,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:42:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:42:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 12:42:58,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 12:42:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 12:42:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-11-23 12:42:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-11-23 12:42:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-11-23 12:42:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-11-23 12:42:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-11-23 12:42:58,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-11-23 12:42:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 12:42:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:42:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 12:42:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:42:58,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:42:59,574 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:42:59,578 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:43:32,846 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:43:32,921 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:43:32,921 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 12:43:32,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:43:32 BoogieIcfgContainer [2021-11-23 12:43:32,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:43:32,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:43:32,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:43:32,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:43:32,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:42:51" (1/3) ... [2021-11-23 12:43:32,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c9d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:43:32, skipping insertion in model container [2021-11-23 12:43:32,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:42:53" (2/3) ... [2021-11-23 12:43:32,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668c9d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:43:32, skipping insertion in model container [2021-11-23 12:43:32,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:43:32" (3/3) ... [2021-11-23 12:43:32,946 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-11-23 12:43:32,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:43:32,952 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-23 12:43:33,047 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:43:33,054 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 12:43:33,054 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-23 12:43:33,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 11856 states, 11790 states have (on average 1.3827820186598812) internal successors, (16303), 11800 states have internal predecessors, (16303), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-23 12:43:33,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 12:43:33,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:43:33,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:43:33,462 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:43:33,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:43:33,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1787846060, now seen corresponding path program 1 times [2021-11-23 12:43:33,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:43:33,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537120639] [2021-11-23 12:43:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:43:33,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:43:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:43:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:43:34,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:43:34,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537120639] [2021-11-23 12:43:34,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537120639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:43:34,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:43:34,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:43:34,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530411180] [2021-11-23 12:43:34,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:43:34,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:43:34,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:43:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:43:34,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:43:34,081 INFO L87 Difference]: Start difference. First operand has 11856 states, 11790 states have (on average 1.3827820186598812) internal successors, (16303), 11800 states have internal predecessors, (16303), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:43:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:43:34,646 INFO L93 Difference]: Finished difference Result 23703 states and 32788 transitions. [2021-11-23 12:43:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:43:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-23 12:43:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:43:34,739 INFO L225 Difference]: With dead ends: 23703 [2021-11-23 12:43:34,740 INFO L226 Difference]: Without dead ends: 11838 [2021-11-23 12:43:34,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:43:34,784 INFO L933 BasicCegarLoop]: 16355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16355 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:43:34,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:43:34,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11838 states. [2021-11-23 12:43:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11838 to 11838. [2021-11-23 12:43:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11838 states, 11773 states have (on average 1.3805317251337808) internal successors, (16253), 11782 states have internal predecessors, (16253), 40 states have call successors, (40), 20 states have call predecessors, (40), 20 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2021-11-23 12:43:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 16333 transitions. [2021-11-23 12:43:35,288 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 16333 transitions. Word has length 48 [2021-11-23 12:43:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:43:35,289 INFO L470 AbstractCegarLoop]: Abstraction has 11838 states and 16333 transitions. [2021-11-23 12:43:35,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:43:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 16333 transitions. [2021-11-23 12:43:35,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 12:43:35,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:43:35,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:43:35,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:43:35,295 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:43:35,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:43:35,296 INFO L85 PathProgramCache]: Analyzing trace with hash 116431964, now seen corresponding path program 1 times [2021-11-23 12:43:35,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:43:35,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725602629] [2021-11-23 12:43:35,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:43:35,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:43:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:43:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:43:35,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:43:35,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725602629] [2021-11-23 12:43:35,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725602629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:43:35,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:43:35,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:43:35,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369572801] [2021-11-23 12:43:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:43:35,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:43:35,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:43:35,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:43:35,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:43:35,528 INFO L87 Difference]: Start difference. First operand 11838 states and 16333 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:43:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:43:49,816 INFO L93 Difference]: Finished difference Result 35456 states and 49090 transitions. [2021-11-23 12:43:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:43:49,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-23 12:43:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:43:49,974 INFO L225 Difference]: With dead ends: 35456 [2021-11-23 12:43:49,974 INFO L226 Difference]: Without dead ends: 23646 [2021-11-23 12:43:50,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:43:50,008 INFO L933 BasicCegarLoop]: 15751 mSDtfsCounter, 15669 mSDsluCounter, 15009 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 1306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15669 SdHoareTripleChecker+Valid, 30760 SdHoareTripleChecker+Invalid, 2648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1306 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-23 12:43:50,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15669 Valid, 30760 Invalid, 2648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1306 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2021-11-23 12:43:50,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23646 states. [2021-11-23 12:43:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23646 to 23634. [2021-11-23 12:43:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23634 states, 23509 states have (on average 1.3530988132204687) internal successors, (31810), 23523 states have internal predecessors, (31810), 80 states have call successors, (80), 40 states have call predecessors, (80), 40 states have return successors, (152), 74 states have call predecessors, (152), 80 states have call successors, (152) [2021-11-23 12:43:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23634 states to 23634 states and 32042 transitions. [2021-11-23 12:43:50,855 INFO L78 Accepts]: Start accepts. Automaton has 23634 states and 32042 transitions. Word has length 48 [2021-11-23 12:43:50,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:43:50,856 INFO L470 AbstractCegarLoop]: Abstraction has 23634 states and 32042 transitions. [2021-11-23 12:43:50,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:43:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 23634 states and 32042 transitions. [2021-11-23 12:43:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 12:43:50,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:43:50,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:43:50,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:43:50,864 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:43:50,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:43:50,865 INFO L85 PathProgramCache]: Analyzing trace with hash -685529985, now seen corresponding path program 1 times [2021-11-23 12:43:50,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:43:50,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963531292] [2021-11-23 12:43:50,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:43:50,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:43:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:43:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:43:51,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:43:51,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963531292] [2021-11-23 12:43:51,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963531292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:43:51,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:43:51,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:43:51,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256498871] [2021-11-23 12:43:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:43:51,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:43:51,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:43:51,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:43:51,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:43:51,311 INFO L87 Difference]: Start difference. First operand 23634 states and 32042 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:43:59,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:43:59,358 INFO L93 Difference]: Finished difference Result 70192 states and 95217 transitions. [2021-11-23 12:43:59,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:43:59,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-23 12:43:59,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:43:59,670 INFO L225 Difference]: With dead ends: 70192 [2021-11-23 12:43:59,671 INFO L226 Difference]: Without dead ends: 46586 [2021-11-23 12:43:59,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:43:59,756 INFO L933 BasicCegarLoop]: 16943 mSDtfsCounter, 15345 mSDsluCounter, 15320 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15345 SdHoareTripleChecker+Valid, 32263 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 12:43:59,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15345 Valid, 32263 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 12:43:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46586 states. [2021-11-23 12:44:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46586 to 46575. [2021-11-23 12:44:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46575 states, 46330 states have (on average 1.3300884955752212) internal successors, (61623), 46354 states have internal predecessors, (61623), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-23 12:44:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46575 states to 46575 states and 62239 transitions. [2021-11-23 12:44:01,504 INFO L78 Accepts]: Start accepts. Automaton has 46575 states and 62239 transitions. Word has length 49 [2021-11-23 12:44:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:01,506 INFO L470 AbstractCegarLoop]: Abstraction has 46575 states and 62239 transitions. [2021-11-23 12:44:01,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 46575 states and 62239 transitions. [2021-11-23 12:44:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 12:44:01,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:01,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:44:01,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:44:01,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:01,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:01,513 INFO L85 PathProgramCache]: Analyzing trace with hash 223453383, now seen corresponding path program 1 times [2021-11-23 12:44:01,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:01,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472559660] [2021-11-23 12:44:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:01,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:44:01,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:01,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472559660] [2021-11-23 12:44:01,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472559660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:01,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:01,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:44:01,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114658552] [2021-11-23 12:44:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:01,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:01,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:01,696 INFO L87 Difference]: Start difference. First operand 46575 states and 62239 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:05,420 INFO L93 Difference]: Finished difference Result 46580 states and 62243 transitions. [2021-11-23 12:44:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:44:05,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-23 12:44:05,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:05,578 INFO L225 Difference]: With dead ends: 46580 [2021-11-23 12:44:05,578 INFO L226 Difference]: Without dead ends: 46578 [2021-11-23 12:44:05,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:05,598 INFO L933 BasicCegarLoop]: 17269 mSDtfsCounter, 15342 mSDsluCounter, 15319 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15342 SdHoareTripleChecker+Valid, 32588 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:05,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15342 Valid, 32588 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-23 12:44:05,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46578 states. [2021-11-23 12:44:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46578 to 46576. [2021-11-23 12:44:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46576 states, 46331 states have (on average 1.3300813710042951) internal successors, (61624), 46355 states have internal predecessors, (61624), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-23 12:44:07,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46576 states to 46576 states and 62240 transitions. [2021-11-23 12:44:07,458 INFO L78 Accepts]: Start accepts. Automaton has 46576 states and 62240 transitions. Word has length 50 [2021-11-23 12:44:07,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:07,459 INFO L470 AbstractCegarLoop]: Abstraction has 46576 states and 62240 transitions. [2021-11-23 12:44:07,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 2 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 46576 states and 62240 transitions. [2021-11-23 12:44:07,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 12:44:07,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:07,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:44:07,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 12:44:07,472 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1662833270, now seen corresponding path program 1 times [2021-11-23 12:44:07,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:07,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820938579] [2021-11-23 12:44:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:07,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:07,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:44:07,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:07,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820938579] [2021-11-23 12:44:07,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820938579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:07,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:07,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:44:07,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63705752] [2021-11-23 12:44:07,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:07,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:07,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:07,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:07,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:07,656 INFO L87 Difference]: Start difference. First operand 46576 states and 62240 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:09,141 INFO L93 Difference]: Finished difference Result 46576 states and 62240 transitions. [2021-11-23 12:44:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:44:09,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 12:44:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:09,272 INFO L225 Difference]: With dead ends: 46576 [2021-11-23 12:44:09,273 INFO L226 Difference]: Without dead ends: 46574 [2021-11-23 12:44:09,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:09,292 INFO L933 BasicCegarLoop]: 16330 mSDtfsCounter, 16282 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16282 SdHoareTripleChecker+Valid, 16330 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:09,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16282 Valid, 16330 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:44:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46574 states. [2021-11-23 12:44:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46574 to 46574. [2021-11-23 12:44:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46574 states, 46330 states have (on average 1.330066911288582) internal successors, (61622), 46353 states have internal predecessors, (61622), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-23 12:44:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46574 states to 46574 states and 62238 transitions. [2021-11-23 12:44:10,917 INFO L78 Accepts]: Start accepts. Automaton has 46574 states and 62238 transitions. Word has length 51 [2021-11-23 12:44:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:10,918 INFO L470 AbstractCegarLoop]: Abstraction has 46574 states and 62238 transitions. [2021-11-23 12:44:10,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 46574 states and 62238 transitions. [2021-11-23 12:44:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 12:44:10,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:10,925 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:44:10,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 12:44:10,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:10,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:10,926 INFO L85 PathProgramCache]: Analyzing trace with hash -8177358, now seen corresponding path program 1 times [2021-11-23 12:44:10,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:10,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423165249] [2021-11-23 12:44:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:10,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:44:11,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:11,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423165249] [2021-11-23 12:44:11,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423165249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:11,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:11,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:44:11,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661222012] [2021-11-23 12:44:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:11,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:11,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:11,074 INFO L87 Difference]: Start difference. First operand 46574 states and 62238 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:12,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:12,301 INFO L93 Difference]: Finished difference Result 46574 states and 62238 transitions. [2021-11-23 12:44:12,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:44:12,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-23 12:44:12,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:12,402 INFO L225 Difference]: With dead ends: 46574 [2021-11-23 12:44:12,403 INFO L226 Difference]: Without dead ends: 40353 [2021-11-23 12:44:12,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:12,419 INFO L933 BasicCegarLoop]: 16329 mSDtfsCounter, 16279 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16279 SdHoareTripleChecker+Valid, 16329 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:12,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16279 Valid, 16329 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:44:12,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40353 states. [2021-11-23 12:44:13,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40353 to 40353. [2021-11-23 12:44:13,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40353 states, 40110 states have (on average 1.325504861630516) internal successors, (53166), 40132 states have internal predecessors, (53166), 160 states have call successors, (160), 80 states have call predecessors, (160), 80 states have return successors, (456), 148 states have call predecessors, (456), 160 states have call successors, (456) [2021-11-23 12:44:13,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40353 states to 40353 states and 53782 transitions. [2021-11-23 12:44:13,758 INFO L78 Accepts]: Start accepts. Automaton has 40353 states and 53782 transitions. Word has length 52 [2021-11-23 12:44:13,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:13,759 INFO L470 AbstractCegarLoop]: Abstraction has 40353 states and 53782 transitions. [2021-11-23 12:44:13,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:13,760 INFO L276 IsEmpty]: Start isEmpty. Operand 40353 states and 53782 transitions. [2021-11-23 12:44:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-23 12:44:13,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:13,789 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 12:44:13,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 12:44:13,789 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 214782665, now seen corresponding path program 1 times [2021-11-23 12:44:13,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770153159] [2021-11-23 12:44:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:13,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:13,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:44:13,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:13,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770153159] [2021-11-23 12:44:13,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770153159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:13,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:13,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:44:13,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820660719] [2021-11-23 12:44:13,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:13,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:13,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:13,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:13,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:13,946 INFO L87 Difference]: Start difference. First operand 40353 states and 53782 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:16,416 INFO L93 Difference]: Finished difference Result 96733 states and 129364 transitions. [2021-11-23 12:44:16,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:44:16,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-23 12:44:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:16,603 INFO L225 Difference]: With dead ends: 96733 [2021-11-23 12:44:16,603 INFO L226 Difference]: Without dead ends: 56408 [2021-11-23 12:44:16,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:16,694 INFO L933 BasicCegarLoop]: 16857 mSDtfsCounter, 14486 mSDsluCounter, 7447 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14486 SdHoareTripleChecker+Valid, 24304 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:16,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14486 Valid, 24304 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:44:16,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56408 states. [2021-11-23 12:44:18,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56408 to 56387. [2021-11-23 12:44:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56387 states, 55904 states have (on average 1.3300658271322268) internal successors, (74356), 55946 states have internal predecessors, (74356), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-23 12:44:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56387 states to 56387 states and 75588 transitions. [2021-11-23 12:44:18,708 INFO L78 Accepts]: Start accepts. Automaton has 56387 states and 75588 transitions. Word has length 80 [2021-11-23 12:44:18,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:18,710 INFO L470 AbstractCegarLoop]: Abstraction has 56387 states and 75588 transitions. [2021-11-23 12:44:18,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 56387 states and 75588 transitions. [2021-11-23 12:44:18,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-23 12:44:18,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:18,769 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:44:18,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 12:44:18,770 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:18,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2038250316, now seen corresponding path program 1 times [2021-11-23 12:44:18,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:18,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319244596] [2021-11-23 12:44:18,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:18,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 12:44:18,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:18,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319244596] [2021-11-23 12:44:18,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319244596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:18,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:18,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:44:18,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577261628] [2021-11-23 12:44:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:18,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:44:18,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:44:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:44:18,946 INFO L87 Difference]: Start difference. First operand 56387 states and 75588 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:22,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:22,198 INFO L93 Difference]: Finished difference Result 137931 states and 184562 transitions. [2021-11-23 12:44:22,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:44:22,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-23 12:44:22,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:22,479 INFO L225 Difference]: With dead ends: 137931 [2021-11-23 12:44:22,479 INFO L226 Difference]: Without dead ends: 81572 [2021-11-23 12:44:22,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 12:44:22,657 INFO L933 BasicCegarLoop]: 17149 mSDtfsCounter, 35679 mSDsluCounter, 16350 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35679 SdHoareTripleChecker+Valid, 33499 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:22,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35679 Valid, 33499 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:44:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81572 states. [2021-11-23 12:44:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81572 to 56401. [2021-11-23 12:44:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56401 states, 55918 states have (on average 1.3299831896705891) internal successors, (74370), 55960 states have internal predecessors, (74370), 320 states have call successors, (320), 160 states have call predecessors, (320), 160 states have return successors, (912), 296 states have call predecessors, (912), 320 states have call successors, (912) [2021-11-23 12:44:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56401 states to 56401 states and 75602 transitions. [2021-11-23 12:44:25,127 INFO L78 Accepts]: Start accepts. Automaton has 56401 states and 75602 transitions. Word has length 106 [2021-11-23 12:44:25,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:25,127 INFO L470 AbstractCegarLoop]: Abstraction has 56401 states and 75602 transitions. [2021-11-23 12:44:25,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 56401 states and 75602 transitions. [2021-11-23 12:44:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 12:44:25,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:25,180 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:44:25,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 12:44:25,180 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:25,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1235614547, now seen corresponding path program 1 times [2021-11-23 12:44:25,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:25,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347298767] [2021-11-23 12:44:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:25,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 12:44:25,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:25,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347298767] [2021-11-23 12:44:25,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347298767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:25,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:25,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:44:25,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211608990] [2021-11-23 12:44:25,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:25,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:25,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:25,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:25,411 INFO L87 Difference]: Start difference. First operand 56401 states and 75602 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:44:28,523 INFO L93 Difference]: Finished difference Result 128930 states and 173760 transitions. [2021-11-23 12:44:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 12:44:28,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-23 12:44:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:44:28,755 INFO L225 Difference]: With dead ends: 128930 [2021-11-23 12:44:28,756 INFO L226 Difference]: Without dead ends: 72557 [2021-11-23 12:44:28,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:28,870 INFO L933 BasicCegarLoop]: 18827 mSDtfsCounter, 11801 mSDsluCounter, 7483 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11801 SdHoareTripleChecker+Valid, 26310 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:44:28,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11801 Valid, 26310 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:44:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72557 states. [2021-11-23 12:44:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72557 to 72557. [2021-11-23 12:44:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72557 states, 71594 states have (on average 1.33681593429617) internal successors, (95708), 71676 states have internal predecessors, (95708), 640 states have call successors, (640), 320 states have call predecessors, (640), 320 states have return successors, (1824), 592 states have call predecessors, (1824), 640 states have call successors, (1824) [2021-11-23 12:44:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72557 states to 72557 states and 98172 transitions. [2021-11-23 12:44:31,879 INFO L78 Accepts]: Start accepts. Automaton has 72557 states and 98172 transitions. Word has length 111 [2021-11-23 12:44:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:44:31,880 INFO L470 AbstractCegarLoop]: Abstraction has 72557 states and 98172 transitions. [2021-11-23 12:44:31,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:44:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 72557 states and 98172 transitions. [2021-11-23 12:44:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-23 12:44:32,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:44:32,004 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 12:44:32,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 12:44:32,005 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-23 12:44:32,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:44:32,005 INFO L85 PathProgramCache]: Analyzing trace with hash -914774859, now seen corresponding path program 1 times [2021-11-23 12:44:32,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:44:32,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918616355] [2021-11-23 12:44:32,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:44:32,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:44:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:44:32,179 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 12:44:32,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:44:32,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918616355] [2021-11-23 12:44:32,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918616355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:44:32,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:44:32,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 12:44:32,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262072384] [2021-11-23 12:44:32,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:44:32,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 12:44:32,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:44:32,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 12:44:32,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 12:44:32,183 INFO L87 Difference]: Start difference. First operand 72557 states and 98172 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)