/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 17:28:39,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 17:28:39,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 17:28:39,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 17:28:39,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 17:28:39,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 17:28:39,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 17:28:39,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 17:28:39,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 17:28:39,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 17:28:39,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 17:28:39,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 17:28:39,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 17:28:39,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 17:28:39,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 17:28:39,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 17:28:39,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 17:28:39,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 17:28:39,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 17:28:39,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 17:28:39,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 17:28:39,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 17:28:39,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 17:28:39,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 17:28:39,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 17:28:39,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 17:28:39,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 17:28:39,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 17:28:39,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 17:28:39,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 17:28:39,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 17:28:39,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 17:28:39,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 17:28:39,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 17:28:39,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 17:28:39,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 17:28:39,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 17:28:39,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 17:28:39,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 17:28:39,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 17:28:39,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 17:28:39,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 17:28:39,574 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 17:28:39,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 17:28:39,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 17:28:39,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 17:28:39,579 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 17:28:39,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 17:28:39,579 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 17:28:39,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 17:28:39,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 17:28:39,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 17:28:39,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 17:28:39,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 17:28:39,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 17:28:39,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 17:28:39,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 17:28:39,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 17:28:39,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 17:28:39,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 17:28:39,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 17:28:39,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 17:28:39,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 17:28:39,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:28:39,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 17:28:39,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 17:28:39,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 17:28:39,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 17:28:39,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 17:28:39,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 17:28:39,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 17:28:39,584 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:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 17:28:40,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 17:28:40,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 17:28:40,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 17:28:40,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 17:28:40,062 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 17:28:40,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-27 17:28:40,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031d77259/9a1af375eb214db5b7247ec52b5c8d6b/FLAGdc4a72e3a [2020-10-27 17:28:41,014 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 17:28:41,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-27 17:28:41,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031d77259/9a1af375eb214db5b7247ec52b5c8d6b/FLAGdc4a72e3a [2020-10-27 17:28:41,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/031d77259/9a1af375eb214db5b7247ec52b5c8d6b [2020-10-27 17:28:41,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 17:28:41,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 17:28:41,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 17:28:41,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 17:28:41,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 17:28:41,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60015b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41, skipping insertion in model container [2020-10-27 17:28:41,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 17:28:41,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 17:28:41,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:28:41,747 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 17:28:41,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 17:28:41,902 INFO L208 MainTranslator]: Completed translation [2020-10-27 17:28:41,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41 WrapperNode [2020-10-27 17:28:41,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 17:28:41,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 17:28:41,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 17:28:41,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 17:28:41,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:41,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:42,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:42,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... [2020-10-27 17:28:42,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 17:28:42,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 17:28:42,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 17:28:42,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 17:28:42,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 17:28:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 17:28:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 17:28:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 17:28:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 17:28:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 17:28:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 17:28:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 17:28:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 17:28:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 17:28:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 17:28:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 17:28:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 17:28:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 17:28:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 17:28:43,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 17:28:43,902 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 17:28:43,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:28:43 BoogieIcfgContainer [2020-10-27 17:28:43,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 17:28:43,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 17:28:43,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 17:28:43,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 17:28:43,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:28:41" (1/3) ... [2020-10-27 17:28:43,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286eab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:28:43, skipping insertion in model container [2020-10-27 17:28:43,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:28:41" (2/3) ... [2020-10-27 17:28:43,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@286eab5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:28:43, skipping insertion in model container [2020-10-27 17:28:43,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:28:43" (3/3) ... [2020-10-27 17:28:43,926 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-10-27 17:28:43,939 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 17:28:43,943 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 17:28:43,959 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 17:28:43,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 17:28:43,990 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 17:28:43,991 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 17:28:43,991 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 17:28:43,991 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 17:28:43,991 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 17:28:43,991 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 17:28:43,991 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 17:28:44,017 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-27 17:28:44,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-27 17:28:44,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:44,028 INFO L422 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] [2020-10-27 17:28:44,028 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:44,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:44,035 INFO L82 PathProgramCache]: Analyzing trace with hash -2022545268, now seen corresponding path program 1 times [2020-10-27 17:28:44,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:44,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718737034] [2020-10-27 17:28:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:44,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:44,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:44,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 17:28:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-27 17:28:44,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 17:28:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 17:28:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-27 17:28:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 17:28:45,103 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 17:28:45,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:45,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:45,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 17:28:45,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 17:28:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:45,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718737034] [2020-10-27 17:28:45,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 17:28:45,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 17:28:45,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257843726] [2020-10-27 17:28:45,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:45,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:45,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:45,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:45,247 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-27 17:28:47,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:47,686 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-27 17:28:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:47,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-10-27 17:28:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:47,705 INFO L225 Difference]: With dead ends: 586 [2020-10-27 17:28:47,705 INFO L226 Difference]: Without dead ends: 303 [2020-10-27 17:28:47,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-27 17:28:47,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-27 17:28:47,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-27 17:28:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-27 17:28:47,796 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 48 [2020-10-27 17:28:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:47,797 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-27 17:28:47,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-27 17:28:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 17:28:47,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:47,809 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:47,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 17:28:47,810 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:47,810 INFO L82 PathProgramCache]: Analyzing trace with hash 142672144, now seen corresponding path program 1 times [2020-10-27 17:28:47,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:47,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817083742] [2020-10-27 17:28:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:47,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:48,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:48,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:48,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 17:28:48,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:28:48,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-10-27 17:28:48,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-27 17:28:48,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 17:28:48,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:48,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:48,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:48,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:48,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:48,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 17:28:48,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:48,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:48,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:48,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:48,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:48,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 17:28:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:48,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-27 17:28:48,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 17:28:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:48,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817083742] [2020-10-27 17:28:48,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:48,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:48,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726891327] [2020-10-27 17:28:49,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:49,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:49,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:49,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:49,016 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-27 17:28:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:50,610 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2020-10-27 17:28:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:50,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-10-27 17:28:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:50,622 INFO L225 Difference]: With dead ends: 886 [2020-10-27 17:28:50,623 INFO L226 Difference]: Without dead ends: 593 [2020-10-27 17:28:50,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-27 17:28:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-10-27 17:28:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-27 17:28:50,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 757 transitions. [2020-10-27 17:28:50,701 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 757 transitions. Word has length 118 [2020-10-27 17:28:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:50,702 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 757 transitions. [2020-10-27 17:28:50,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:50,707 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 757 transitions. [2020-10-27 17:28:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-27 17:28:50,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:50,716 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:50,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 17:28:50,717 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:50,718 INFO L82 PathProgramCache]: Analyzing trace with hash 211600400, now seen corresponding path program 1 times [2020-10-27 17:28:50,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:50,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552936858] [2020-10-27 17:28:50,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:50,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:50,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:51,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:51,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-27 17:28:51,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 17:28:51,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-27 17:28:51,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-27 17:28:51,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 17:28:51,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:51,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:51,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:51,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:51,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 17:28:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:51,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:51,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:51,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:51,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 17:28:51,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 17:28:51,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:52,031 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 17:28:52,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552936858] [2020-10-27 17:28:52,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:52,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:52,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010090200] [2020-10-27 17:28:52,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:52,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:52,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:52,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:52,035 INFO L87 Difference]: Start difference. First operand 589 states and 757 transitions. Second operand 5 states. [2020-10-27 17:28:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:53,851 INFO L93 Difference]: Finished difference Result 1466 states and 1962 transitions. [2020-10-27 17:28:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:53,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-27 17:28:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:53,859 INFO L225 Difference]: With dead ends: 1466 [2020-10-27 17:28:53,860 INFO L226 Difference]: Without dead ends: 883 [2020-10-27 17:28:53,862 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-27 17:28:53,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-27 17:28:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-27 17:28:53,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1115 transitions. [2020-10-27 17:28:53,918 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1115 transitions. Word has length 127 [2020-10-27 17:28:53,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:53,920 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1115 transitions. [2020-10-27 17:28:53,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1115 transitions. [2020-10-27 17:28:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-27 17:28:53,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:53,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:53,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 17:28:53,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:53,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:53,934 INFO L82 PathProgramCache]: Analyzing trace with hash -793693928, now seen corresponding path program 1 times [2020-10-27 17:28:53,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:53,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483916480] [2020-10-27 17:28:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:54,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:54,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:54,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:54,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:55,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:55,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-27 17:28:55,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 17:28:55,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2002 [2020-10-27 17:28:55,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:28:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-10-27 17:28:55,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 17:28:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:28:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:56,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:56,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:56,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:56,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:28:56,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:28:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:56,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:56,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 17:28:56,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:56,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 17:28:56,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:28:56,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:28:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 17:28:56,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 17:28:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:56,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:56,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:28:56,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 17:28:56,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:28:56,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 17:28:56,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:28:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:28:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:28:56,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 17:28:56,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 17:28:56,380 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 17:28:56,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483916480] [2020-10-27 17:28:56,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:28:56,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:28:56,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272106369] [2020-10-27 17:28:56,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:28:56,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:28:56,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:28:56,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:28:56,383 INFO L87 Difference]: Start difference. First operand 879 states and 1115 transitions. Second operand 5 states. [2020-10-27 17:28:58,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:28:58,006 INFO L93 Difference]: Finished difference Result 2046 states and 2681 transitions. [2020-10-27 17:28:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:28:58,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2020-10-27 17:28:58,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:28:58,020 INFO L225 Difference]: With dead ends: 2046 [2020-10-27 17:28:58,020 INFO L226 Difference]: Without dead ends: 1173 [2020-10-27 17:28:58,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:28:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-10-27 17:28:58,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1026. [2020-10-27 17:28:58,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1026 states. [2020-10-27 17:28:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1282 transitions. [2020-10-27 17:28:58,101 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1282 transitions. Word has length 200 [2020-10-27 17:28:58,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:28:58,101 INFO L481 AbstractCegarLoop]: Abstraction has 1026 states and 1282 transitions. [2020-10-27 17:28:58,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:28:58,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1282 transitions. [2020-10-27 17:28:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-27 17:28:58,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:28:58,109 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:28:58,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 17:28:58,109 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:28:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:28:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash 712463216, now seen corresponding path program 1 times [2020-10-27 17:28:58,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:28:58,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218150417] [2020-10-27 17:28:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:28:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:28:58,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:58,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:28:58,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:01,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:02,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:02,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-27 17:29:02,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4469 [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 17:29:02,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:02,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:29:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:02,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:02,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:29:02,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:29:02,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:02,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:02,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:29:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:02,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:02,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:02,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:02,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 17:29:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:02,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:02,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:02,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-27 17:29:02,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:02,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 17:29:02,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:29:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:02,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 17:29:02,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-27 17:29:03,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218150417] [2020-10-27 17:29:03,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:29:03,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:29:03,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800987508] [2020-10-27 17:29:03,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:29:03,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:29:03,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:29:03,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:29:03,009 INFO L87 Difference]: Start difference. First operand 1026 states and 1282 transitions. Second operand 5 states. [2020-10-27 17:29:04,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:29:04,992 INFO L93 Difference]: Finished difference Result 3067 states and 3909 transitions. [2020-10-27 17:29:04,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:29:04,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 215 [2020-10-27 17:29:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:29:05,007 INFO L225 Difference]: With dead ends: 3067 [2020-10-27 17:29:05,008 INFO L226 Difference]: Without dead ends: 2047 [2020-10-27 17:29:05,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:29:05,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2020-10-27 17:29:05,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2043. [2020-10-27 17:29:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2020-10-27 17:29:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2475 transitions. [2020-10-27 17:29:05,091 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2475 transitions. Word has length 215 [2020-10-27 17:29:05,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:29:05,092 INFO L481 AbstractCegarLoop]: Abstraction has 2043 states and 2475 transitions. [2020-10-27 17:29:05,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:29:05,092 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2475 transitions. [2020-10-27 17:29:05,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-27 17:29:05,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:29:05,099 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:29:05,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 17:29:05,099 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:29:05,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:29:05,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1518670648, now seen corresponding path program 1 times [2020-10-27 17:29:05,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:29:05,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347996900] [2020-10-27 17:29:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:29:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:05,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:09,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:10,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:10,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-27 17:29:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 17:29:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 17:29:10,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:29:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-27 17:29:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 17:29:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:10,387 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-27 17:29:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:29:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:10,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:10,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:10,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:29:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:10,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:10,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:10,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 17:29:10,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 17:29:10,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:10,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 17:29:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:10,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:10,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:10,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-27 17:29:10,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:10,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-27 17:29:10,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:10,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:29:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:10,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-27 17:29:10,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-27 17:29:10,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347996900] [2020-10-27 17:29:10,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:29:10,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:29:10,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717929031] [2020-10-27 17:29:10,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:29:10,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:29:10,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:29:10,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:29:10,752 INFO L87 Difference]: Start difference. First operand 2043 states and 2475 transitions. Second operand 5 states. [2020-10-27 17:29:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:29:12,063 INFO L93 Difference]: Finished difference Result 4098 states and 4993 transitions. [2020-10-27 17:29:12,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:29:12,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-10-27 17:29:12,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:29:12,081 INFO L225 Difference]: With dead ends: 4098 [2020-10-27 17:29:12,081 INFO L226 Difference]: Without dead ends: 2047 [2020-10-27 17:29:12,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:29:12,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2047 states. [2020-10-27 17:29:12,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2047 to 2043. [2020-10-27 17:29:12,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2043 states. [2020-10-27 17:29:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2471 transitions. [2020-10-27 17:29:12,206 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2471 transitions. Word has length 244 [2020-10-27 17:29:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:29:12,206 INFO L481 AbstractCegarLoop]: Abstraction has 2043 states and 2471 transitions. [2020-10-27 17:29:12,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:29:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2471 transitions. [2020-10-27 17:29:12,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 17:29:12,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 17:29:12,216 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 17:29:12,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 17:29:12,217 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 17:29:12,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 17:29:12,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1000458156, now seen corresponding path program 1 times [2020-10-27 17:29:12,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 17:29:12,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490081253] [2020-10-27 17:29:12,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 17:29:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:12,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:12,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:13,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:14,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:14,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 17:29:14,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 17:29:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2190 [2020-10-27 17:29:14,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 17:29:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-27 17:29:14,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 17:29:14,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 17:29:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:14,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:14,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:14,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 17:29:14,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:14,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 17:29:14,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:14,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:14,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 17:29:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:14,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:14,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:14,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 17:29:14,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:14,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 17:29:14,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 17:29:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 17:29:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:14,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 17:29:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 17:29:14,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 17:29:14,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 17:29:14,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 17:29:14,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 17:29:14,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-27 17:29:14,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 17:29:14,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 17:29:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 17:29:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-27 17:29:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 17:29:15,120 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-27 17:29:15,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490081253] [2020-10-27 17:29:15,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 17:29:15,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 17:29:15,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935897143] [2020-10-27 17:29:15,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 17:29:15,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 17:29:15,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 17:29:15,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 17:29:15,124 INFO L87 Difference]: Start difference. First operand 2043 states and 2471 transitions. Second operand 5 states. [2020-10-27 17:29:16,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 17:29:16,886 INFO L93 Difference]: Finished difference Result 4371 states and 5372 transitions. [2020-10-27 17:29:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 17:29:16,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2020-10-27 17:29:16,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 17:29:16,888 INFO L225 Difference]: With dead ends: 4371 [2020-10-27 17:29:16,888 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 17:29:16,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 17:29:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 17:29:16,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 17:29:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 17:29:16,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 17:29:16,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2020-10-27 17:29:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 17:29:16,903 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 17:29:16,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 17:29:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 17:29:16,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 17:29:16,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 17:29:16,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 17:29:17,081 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 31 [2020-10-27 17:29:17,388 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 31 [2020-10-27 17:29:17,993 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 59 [2020-10-27 17:29:18,189 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 17:29:18,190 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 17:29:18,190 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 17:29:18,190 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 17:29:18,190 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:29:18,190 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 17:29:18,191 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,192 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 17:29:18,193 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,194 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 17:29:18,195 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,196 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-27 17:29:18,197 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 17:29:18,198 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-27 17:29:18,199 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 17:29:18,200 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,201 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 17:29:18,202 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,203 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 17:29:18,204 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,205 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse1 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= ~a10~0 |old(~a10~0)|))) (let ((.cse0 (and .cse1 (= ~a19~0 |old(~a19~0)|) .cse2))) (and (or .cse0 (not (= 4 |old(~a10~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 (not (= 2 |old(~a10~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (not (<= 6 |old(~a19~0)|)) (not (<= 3 |old(~a10~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (not (<= |old(~a19~0)| 6)) (and (<= 6 ~a19~0) .cse1 (<= ~a19~0 6) .cse2) (not (<= 0 (+ |old(~a1~0)| 12))) (not (= ~a12~0 0)) (not (<= |old(~a10~0)| 3)))))) [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-27 17:29:18,206 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-27 17:29:18,207 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 17:29:18,208 INFO L270 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (and (not (= 9 |old(~a19~0)|)) (not (= |old(~a10~0)| 1)) (or (not (<= 6 |old(~a19~0)|)) (not (<= 3 |old(~a10~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a1~0)| 33)) (not (<= |old(~a19~0)| 6)) (not (<= 0 (+ |old(~a1~0)| 12))) (not (= ~a12~0 0)) (not (<= |old(~a10~0)| 3))) (not (= 0 |old(~a10~0)|)) (not (= 2 |old(~a10~0)|)) (not (= 4 |old(~a10~0)|))) [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L129-1(line 129) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-27 17:29:18,209 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-27 17:29:18,210 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-27 17:29:18,211 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 17:29:18,212 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9)) [2020-10-27 17:29:18,212 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 17:29:18,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 17:29:18,213 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2020-10-27 17:29:18,213 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:29:18,213 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= 0 (+ ~a1~0 12)) (<= 3 ~a10~0) (<= 6 ~a19~0) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (<= ~a19~0 6) (<= ~a10~0 3)) (= ~a10~0 4)) [2020-10-27 17:29:18,213 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-27 17:29:18,213 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-27 17:29:18,213 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (<= 0 (+ ~a1~0 12)) (<= 3 ~a10~0) (<= 6 ~a19~0) (= 14 ~a4~0) (<= ~a1~0 33) (= ~a12~0 0) (<= ~a19~0 6) (<= ~a10~0 3)) (= ~a10~0 4)) [2020-10-27 17:29:18,213 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-27 17:29:18,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:29:18 BoogieIcfgContainer [2020-10-27 17:29:18,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 17:29:18,236 INFO L168 Benchmark]: Toolchain (without parser) took 37014.74 ms. Allocated memory was 151.0 MB in the beginning and 697.3 MB in the end (delta: 546.3 MB). Free memory was 124.9 MB in the beginning and 554.8 MB in the end (delta: -429.9 MB). Peak memory consumption was 414.7 MB. Max. memory is 8.0 GB. [2020-10-27 17:29:18,237 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 17:29:18,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 97.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-27 17:29:18,238 INFO L168 Benchmark]: Boogie Preprocessor took 110.85 ms. Allocated memory is still 151.0 MB. Free memory was 97.6 MB in the beginning and 93.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 17:29:18,239 INFO L168 Benchmark]: RCFGBuilder took 1888.82 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 93.0 MB in the beginning and 156.7 MB in the end (delta: -63.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. [2020-10-27 17:29:18,240 INFO L168 Benchmark]: TraceAbstraction took 34322.01 ms. Allocated memory was 191.9 MB in the beginning and 697.3 MB in the end (delta: 505.4 MB). Free memory was 156.2 MB in the beginning and 554.8 MB in the end (delta: -398.6 MB). Peak memory consumption was 404.1 MB. Max. memory is 8.0 GB. [2020-10-27 17:29:18,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 675.78 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 97.8 MB in the end (delta: 26.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.85 ms. Allocated memory is still 151.0 MB. Free memory was 97.6 MB in the beginning and 93.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1888.82 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 93.0 MB in the beginning and 156.7 MB in the end (delta: -63.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 34322.01 ms. Allocated memory was 191.9 MB in the beginning and 697.3 MB in the end (delta: 505.4 MB). Free memory was 156.2 MB in the beginning and 554.8 MB in the end (delta: -398.6 MB). Peak memory consumption was 404.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((a10 == 1 || !(9 == \old(a19))) || a10 == 0) || a10 == 2) || a19 == 9) || !(0 == \old(a10))) || (((((((0 <= a1 + 12 && 3 <= a10) && 6 <= a19) && 14 == a4) && a1 <= 33) && a12 == 0) && a19 <= 6) && a10 <= 3)) || a10 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.9s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 2218 SDslu, 146 SDs, 0 SdLazy, 4963 SolverSat, 586 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2043occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 167 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 145 PreInvPairs, 181 NumberOfFragments, 371 HoareAnnotationTreeSize, 145 FomulaSimplifications, 19598 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1408 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 1206 NumberOfCodeBlocks, 1206 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1199 ConstructedInterpolants, 0 QuantifiedInterpolants, 501480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 696/706 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...