/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=SHALLOWEST --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/Problem01_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:06,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:06,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:06,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:06,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:06,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:06,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:06,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:06,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:06,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:06,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:06,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:06,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:06,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:06,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:06,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:06,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:06,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:06,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:06,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:06,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:06,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:06,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:06,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:06,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:06,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:06,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:06,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:06,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:06,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:06,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:06,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:06,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:06,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:06,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:06,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:06,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:06,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:06,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:06,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:06,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:06,231 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 [2020-10-26 20:33:06,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:06,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:06,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:06,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:06,260 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:06,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:06,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:06,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:06,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:06,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:06,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:06,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:06,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:06,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:06,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:06,263 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:06,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:06,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:06,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:06,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:06,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:06,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:06,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:06,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:06,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:06,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:06,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:06,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:06,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:06,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:06,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:06,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:06,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:06,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:06,688 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:06,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2020-10-26 20:33:06,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61c355549/be248274ffcd486491ee446f10fe3973/FLAGa99bfd79c [2020-10-26 20:33:07,627 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:07,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label24.c [2020-10-26 20:33:07,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61c355549/be248274ffcd486491ee446f10fe3973/FLAGa99bfd79c [2020-10-26 20:33:07,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/61c355549/be248274ffcd486491ee446f10fe3973 [2020-10-26 20:33:07,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:07,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:07,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:07,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:07,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:07,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:07" (1/1) ... [2020-10-26 20:33:07,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efdc3ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:07, skipping insertion in model container [2020-10-26 20:33:07,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:07" (1/1) ... [2020-10-26 20:33:07,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:07,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:08,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:08,460 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:08,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:08,657 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:08,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08 WrapperNode [2020-10-26 20:33:08,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:08,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:08,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:08,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:08,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (1/1) ... [2020-10-26 20:33:08,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:08,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:08,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:08,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:08,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (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 [2020-10-26 20:33:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:08,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:08,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:08,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:08,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:10,400 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:10,400 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:10,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:10 BoogieIcfgContainer [2020-10-26 20:33:10,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:10,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:10,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:10,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:10,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:07" (1/3) ... [2020-10-26 20:33:10,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66666f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:10, skipping insertion in model container [2020-10-26 20:33:10,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:08" (2/3) ... [2020-10-26 20:33:10,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66666f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:10, skipping insertion in model container [2020-10-26 20:33:10,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:10" (3/3) ... [2020-10-26 20:33:10,413 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label24.c [2020-10-26 20:33:10,426 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:10,432 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:10,447 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:10,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:10,479 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:10,479 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:10,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:10,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:10,479 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:10,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:10,480 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:10,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-26 20:33:10,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:10,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:10,519 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 2061332603, now seen corresponding path program 1 times [2020-10-26 20:33:10,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:10,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318004442] [2020-10-26 20:33:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-26 20:33:12,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1934 [2020-10-26 20:33:12,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:12,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:12,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-26 20:33:12,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-26 20:33:13,090 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:13,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:13,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:13,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:13,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:13,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:13,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:13,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:13,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:13,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:13,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318004442] [2020-10-26 20:33:13,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:13,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:33:13,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270545973] [2020-10-26 20:33:13,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:33:13,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:13,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:33:13,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:33:13,217 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:33:13,437 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:15,793 INFO L93 Difference]: Finished difference Result 587 states and 986 transitions. [2020-10-26 20:33:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:33:15,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-10-26 20:33:15,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:15,812 INFO L225 Difference]: With dead ends: 587 [2020-10-26 20:33:15,813 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:33:15,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:15,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:33:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-10-26 20:33:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-26 20:33:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2020-10-26 20:33:15,904 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 105 [2020-10-26 20:33:15,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:15,905 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2020-10-26 20:33:15,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:33:15,906 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2020-10-26 20:33:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-26 20:33:15,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:15,912 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:15,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:33:15,913 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:15,914 INFO L82 PathProgramCache]: Analyzing trace with hash 476016577, now seen corresponding path program 1 times [2020-10-26 20:33:15,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:15,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602166906] [2020-10-26 20:33:15,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:15,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 20:33:17,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1579 [2020-10-26 20:33:17,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,730 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:17,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:17,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:33:17,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:17,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:17,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:17,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:17,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:17,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:33:17,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:17,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:33:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:17,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602166906] [2020-10-26 20:33:17,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:17,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:33:17,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823858891] [2020-10-26 20:33:17,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:17,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:17,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:17,907 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand 7 states. [2020-10-26 20:33:18,116 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:33:20,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:20,560 INFO L93 Difference]: Finished difference Result 856 states and 1247 transitions. [2020-10-26 20:33:20,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:33:20,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-26 20:33:20,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:20,570 INFO L225 Difference]: With dead ends: 856 [2020-10-26 20:33:20,570 INFO L226 Difference]: Without dead ends: 579 [2020-10-26 20:33:20,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2020-10-26 20:33:20,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 559. [2020-10-26 20:33:20,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 20:33:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 789 transitions. [2020-10-26 20:33:20,686 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 789 transitions. Word has length 115 [2020-10-26 20:33:20,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:20,687 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 789 transitions. [2020-10-26 20:33:20,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:20,687 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 789 transitions. [2020-10-26 20:33:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-26 20:33:20,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:20,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:20,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:33:20,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:20,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:20,704 INFO L82 PathProgramCache]: Analyzing trace with hash -999151330, now seen corresponding path program 1 times [2020-10-26 20:33:20,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:20,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640755411] [2020-10-26 20:33:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:20,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:21,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 20:33:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 20:33:21,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:21,630 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:21,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:21,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:21,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:21,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:21,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:21,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:21,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:21,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:21,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:21,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:21,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:21,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:21,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:21,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:21,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:21,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:33:21,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:21,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640755411] [2020-10-26 20:33:21,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:21,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:33:21,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455664137] [2020-10-26 20:33:21,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:33:21,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:21,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:33:21,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:33:21,857 INFO L87 Difference]: Start difference. First operand 559 states and 789 transitions. Second operand 5 states. [2020-10-26 20:33:22,311 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-26 20:33:24,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:24,083 INFO L93 Difference]: Finished difference Result 1219 states and 1752 transitions. [2020-10-26 20:33:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:33:24,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-10-26 20:33:24,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:24,094 INFO L225 Difference]: With dead ends: 1219 [2020-10-26 20:33:24,094 INFO L226 Difference]: Without dead ends: 565 [2020-10-26 20:33:24,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:33:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-26 20:33:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 557. [2020-10-26 20:33:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-26 20:33:24,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 716 transitions. [2020-10-26 20:33:24,141 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 716 transitions. Word has length 116 [2020-10-26 20:33:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:24,141 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 716 transitions. [2020-10-26 20:33:24,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:33:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 716 transitions. [2020-10-26 20:33:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-26 20:33:24,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:24,144 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:24,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:33:24,145 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:24,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:24,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1682885862, now seen corresponding path program 1 times [2020-10-26 20:33:24,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:24,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187743895] [2020-10-26 20:33:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:24,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:26,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:28,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:33:28,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:28,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3850 [2020-10-26 20:33:28,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:28,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:33:28,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:28,260 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:28,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:28,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:28,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:28,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:28,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:33:28,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:28,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:28,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:28,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:28,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:28,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:28,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:28,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:33:28,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:28,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:28,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:33:28,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187743895] [2020-10-26 20:33:28,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:28,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:33:28,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041421527] [2020-10-26 20:33:28,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:28,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:28,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:28,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:28,488 INFO L87 Difference]: Start difference. First operand 557 states and 716 transitions. Second operand 7 states. [2020-10-26 20:33:28,700 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:30,103 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:30,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:30,744 INFO L93 Difference]: Finished difference Result 1688 states and 2216 transitions. [2020-10-26 20:33:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:30,745 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-26 20:33:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:30,752 INFO L225 Difference]: With dead ends: 1688 [2020-10-26 20:33:30,752 INFO L226 Difference]: Without dead ends: 1137 [2020-10-26 20:33:30,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:30,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-10-26 20:33:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1123. [2020-10-26 20:33:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1123 states. [2020-10-26 20:33:30,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1357 transitions. [2020-10-26 20:33:30,813 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1357 transitions. Word has length 120 [2020-10-26 20:33:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:30,813 INFO L481 AbstractCegarLoop]: Abstraction has 1123 states and 1357 transitions. [2020-10-26 20:33:30,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1357 transitions. [2020-10-26 20:33:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 20:33:30,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:30,817 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:30,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:33:30,818 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:30,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:30,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1220976723, now seen corresponding path program 1 times [2020-10-26 20:33:30,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:30,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241108408] [2020-10-26 20:33:30,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:30,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:31,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:35,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-26 20:33:35,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:33:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-26 20:33:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:33:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:35,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-26 20:33:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,126 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:36,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:36,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:36,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:33:36,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:36,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:36,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:33:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:36,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:36,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:36,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:36,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:36,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:33:36,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:33:36,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241108408] [2020-10-26 20:33:36,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:36,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:36,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037824327] [2020-10-26 20:33:36,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:36,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:36,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:36,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:36,338 INFO L87 Difference]: Start difference. First operand 1123 states and 1357 transitions. Second operand 7 states. [2020-10-26 20:33:36,551 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:37,695 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:38,792 INFO L93 Difference]: Finished difference Result 2695 states and 3305 transitions. [2020-10-26 20:33:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:38,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-26 20:33:38,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:38,803 INFO L225 Difference]: With dead ends: 2695 [2020-10-26 20:33:38,803 INFO L226 Difference]: Without dead ends: 1578 [2020-10-26 20:33:38,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:38,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2020-10-26 20:33:38,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1425. [2020-10-26 20:33:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-26 20:33:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1721 transitions. [2020-10-26 20:33:38,882 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1721 transitions. Word has length 139 [2020-10-26 20:33:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:38,882 INFO L481 AbstractCegarLoop]: Abstraction has 1425 states and 1721 transitions. [2020-10-26 20:33:38,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1721 transitions. [2020-10-26 20:33:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-26 20:33:38,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:38,887 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:38,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:33:38,888 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:38,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1863109003, now seen corresponding path program 1 times [2020-10-26 20:33:38,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:38,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660652492] [2020-10-26 20:33:38,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:38,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:38,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:39,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:42,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:43,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:43,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-26 20:33:43,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:43,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:33:43,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:43,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:33:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,143 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:44,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:44,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:44,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:44,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:44,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:44,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:44,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:33:44,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:33:44,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:44,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:33:44,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:44,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:33:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:44,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:44,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:44,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:33:44,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:44,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:44,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 42 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:33:44,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660652492] [2020-10-26 20:33:44,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:44,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:44,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355809579] [2020-10-26 20:33:44,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:44,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:44,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:44,447 INFO L87 Difference]: Start difference. First operand 1425 states and 1721 transitions. Second operand 7 states. [2020-10-26 20:33:44,656 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:33:46,109 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:33:46,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:46,680 INFO L93 Difference]: Finished difference Result 3416 states and 4115 transitions. [2020-10-26 20:33:46,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:33:46,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 147 [2020-10-26 20:33:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:46,692 INFO L225 Difference]: With dead ends: 3416 [2020-10-26 20:33:46,692 INFO L226 Difference]: Without dead ends: 1997 [2020-10-26 20:33:46,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:33:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2020-10-26 20:33:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1850. [2020-10-26 20:33:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1850 states. [2020-10-26 20:33:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2199 transitions. [2020-10-26 20:33:46,785 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2199 transitions. Word has length 147 [2020-10-26 20:33:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:46,786 INFO L481 AbstractCegarLoop]: Abstraction has 1850 states and 2199 transitions. [2020-10-26 20:33:46,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:46,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2199 transitions. [2020-10-26 20:33:46,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 20:33:46,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:46,792 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:46,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:33:46,792 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:46,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:46,793 INFO L82 PathProgramCache]: Analyzing trace with hash 674973191, now seen corresponding path program 1 times [2020-10-26 20:33:46,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:46,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291607598] [2020-10-26 20:33:46,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:46,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:51,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:51,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-26 20:33:51,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:51,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,031 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:33:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:52,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:33:52,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:52,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-26 20:33:52,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:52,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:33:52,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:33:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:52,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:52,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:52,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:52,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:33:52,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291607598] [2020-10-26 20:33:52,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:52,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:52,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728977756] [2020-10-26 20:33:52,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:52,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:52,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:52,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:52,516 INFO L87 Difference]: Start difference. First operand 1850 states and 2199 transitions. Second operand 8 states. [2020-10-26 20:33:52,734 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:33:53,624 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:33:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:54,974 INFO L93 Difference]: Finished difference Result 4270 states and 5260 transitions. [2020-10-26 20:33:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:33:54,980 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-10-26 20:33:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:54,993 INFO L225 Difference]: With dead ends: 4270 [2020-10-26 20:33:54,994 INFO L226 Difference]: Without dead ends: 2426 [2020-10-26 20:33:55,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:33:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2020-10-26 20:33:55,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2120. [2020-10-26 20:33:55,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2120 states. [2020-10-26 20:33:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2490 transitions. [2020-10-26 20:33:55,098 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2490 transitions. Word has length 161 [2020-10-26 20:33:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:55,098 INFO L481 AbstractCegarLoop]: Abstraction has 2120 states and 2490 transitions. [2020-10-26 20:33:55,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2490 transitions. [2020-10-26 20:33:55,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 20:33:55,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:55,106 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:55,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:33:55,106 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:55,107 INFO L82 PathProgramCache]: Analyzing trace with hash 118663086, now seen corresponding path program 1 times [2020-10-26 20:33:55,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:55,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562730586] [2020-10-26 20:33:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:55,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:58,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 20:34:00,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4891 [2020-10-26 20:34:00,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:34:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,231 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:00,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:00,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:00,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:00,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:00,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-26 20:34:00,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:00,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:00,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:00,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:00,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:00,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:34:00,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:00,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:00,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:34:00,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562730586] [2020-10-26 20:34:00,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:00,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:00,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031247170] [2020-10-26 20:34:00,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:00,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:00,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:00,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:00,685 INFO L87 Difference]: Start difference. First operand 2120 states and 2490 transitions. Second operand 7 states. [2020-10-26 20:34:00,947 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:03,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:03,026 INFO L93 Difference]: Finished difference Result 4959 states and 5903 transitions. [2020-10-26 20:34:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:03,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-26 20:34:03,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:03,043 INFO L225 Difference]: With dead ends: 4959 [2020-10-26 20:34:03,043 INFO L226 Difference]: Without dead ends: 2845 [2020-10-26 20:34:03,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2020-10-26 20:34:03,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2829. [2020-10-26 20:34:03,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2829 states. [2020-10-26 20:34:03,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 3317 transitions. [2020-10-26 20:34:03,158 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 3317 transitions. Word has length 178 [2020-10-26 20:34:03,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:03,158 INFO L481 AbstractCegarLoop]: Abstraction has 2829 states and 3317 transitions. [2020-10-26 20:34:03,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:03,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 3317 transitions. [2020-10-26 20:34:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-26 20:34:03,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:03,167 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:03,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:03,168 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:03,168 INFO L82 PathProgramCache]: Analyzing trace with hash 633474710, now seen corresponding path program 1 times [2020-10-26 20:34:03,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:03,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73432648] [2020-10-26 20:34:03,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:03,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:03,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:05,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:05,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-26 20:34:05,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2649 [2020-10-26 20:34:05,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:34:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:05,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,055 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:06,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:06,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:06,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:34:06,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:06,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:34:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:34:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:06,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:06,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-26 20:34:06,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73432648] [2020-10-26 20:34:06,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:06,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:06,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484987349] [2020-10-26 20:34:06,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:06,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:06,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:06,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:06,383 INFO L87 Difference]: Start difference. First operand 2829 states and 3317 transitions. Second operand 7 states. [2020-10-26 20:34:07,215 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:34:07,595 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:09,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:09,277 INFO L93 Difference]: Finished difference Result 6083 states and 7244 transitions. [2020-10-26 20:34:09,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:09,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 194 [2020-10-26 20:34:09,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:09,295 INFO L225 Difference]: With dead ends: 6083 [2020-10-26 20:34:09,296 INFO L226 Difference]: Without dead ends: 3395 [2020-10-26 20:34:09,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:09,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2020-10-26 20:34:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3379. [2020-10-26 20:34:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3379 states. [2020-10-26 20:34:09,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3379 states to 3379 states and 3920 transitions. [2020-10-26 20:34:09,410 INFO L78 Accepts]: Start accepts. Automaton has 3379 states and 3920 transitions. Word has length 194 [2020-10-26 20:34:09,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:09,411 INFO L481 AbstractCegarLoop]: Abstraction has 3379 states and 3920 transitions. [2020-10-26 20:34:09,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3379 states and 3920 transitions. [2020-10-26 20:34:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-26 20:34:09,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:09,421 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:09,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:09,422 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:09,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:09,422 INFO L82 PathProgramCache]: Analyzing trace with hash -435600237, now seen corresponding path program 1 times [2020-10-26 20:34:09,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:09,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919890359] [2020-10-26 20:34:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:09,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:09,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:09,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3353 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:12,999 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:13,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:13,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:34:13,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:13,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:13,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:13,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,335 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 154 proven. 24 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-26 20:34:13,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919890359] [2020-10-26 20:34:13,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:13,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:13,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415471953] [2020-10-26 20:34:13,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:13,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:13,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:13,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:13,338 INFO L87 Difference]: Start difference. First operand 3379 states and 3920 transitions. Second operand 7 states. [2020-10-26 20:34:13,835 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:15,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:15,941 INFO L93 Difference]: Finished difference Result 7052 states and 8177 transitions. [2020-10-26 20:34:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:15,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-10-26 20:34:15,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:15,961 INFO L225 Difference]: With dead ends: 7052 [2020-10-26 20:34:15,962 INFO L226 Difference]: Without dead ends: 3814 [2020-10-26 20:34:15,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:34:15,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2020-10-26 20:34:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3800. [2020-10-26 20:34:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3800 states. [2020-10-26 20:34:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 4312 transitions. [2020-10-26 20:34:16,122 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 4312 transitions. Word has length 225 [2020-10-26 20:34:16,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:16,123 INFO L481 AbstractCegarLoop]: Abstraction has 3800 states and 4312 transitions. [2020-10-26 20:34:16,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 4312 transitions. [2020-10-26 20:34:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-26 20:34:16,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:16,134 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:16,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:16,134 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:16,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:16,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1693888952, now seen corresponding path program 1 times [2020-10-26 20:34:16,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:16,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292649188] [2020-10-26 20:34:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:16,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-26 20:34:19,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:19,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3153 [2020-10-26 20:34:19,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:34:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,570 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:19,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:19,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:19,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:19,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:19,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:19,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:19,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:34:19,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:34:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:19,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:19,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:19,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:19,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:19,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:34:19,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:19,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:19,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-26 20:34:19,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292649188] [2020-10-26 20:34:19,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:19,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:19,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478650791] [2020-10-26 20:34:20,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:20,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:20,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:20,001 INFO L87 Difference]: Start difference. First operand 3800 states and 4312 transitions. Second operand 7 states. [2020-10-26 20:34:20,785 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:21,575 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:23,038 INFO L93 Difference]: Finished difference Result 7749 states and 8840 transitions. [2020-10-26 20:34:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:23,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 236 [2020-10-26 20:34:23,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:23,059 INFO L225 Difference]: With dead ends: 7749 [2020-10-26 20:34:23,059 INFO L226 Difference]: Without dead ends: 3816 [2020-10-26 20:34:23,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:34:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2020-10-26 20:34:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3798. [2020-10-26 20:34:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3798 states. [2020-10-26 20:34:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 4219 transitions. [2020-10-26 20:34:23,187 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 4219 transitions. Word has length 236 [2020-10-26 20:34:23,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:23,188 INFO L481 AbstractCegarLoop]: Abstraction has 3798 states and 4219 transitions. [2020-10-26 20:34:23,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 4219 transitions. [2020-10-26 20:34:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-10-26 20:34:23,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:23,198 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:23,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:23,198 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:23,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:23,199 INFO L82 PathProgramCache]: Analyzing trace with hash -550981049, now seen corresponding path program 1 times [2020-10-26 20:34:23,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:23,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010610337] [2020-10-26 20:34:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:23,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1071 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 20:34:24,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,548 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:24,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:24,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-26 20:34:24,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010610337] [2020-10-26 20:34:24,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:24,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:24,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585876807] [2020-10-26 20:34:24,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:34:24,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:24,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:34:24,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:24,838 INFO L87 Difference]: Start difference. First operand 3798 states and 4219 transitions. Second operand 5 states. [2020-10-26 20:34:25,973 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:26,891 INFO L93 Difference]: Finished difference Result 7739 states and 8608 transitions. [2020-10-26 20:34:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:26,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 247 [2020-10-26 20:34:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:26,909 INFO L225 Difference]: With dead ends: 7739 [2020-10-26 20:34:26,909 INFO L226 Difference]: Without dead ends: 3806 [2020-10-26 20:34:26,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:26,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2020-10-26 20:34:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3798. [2020-10-26 20:34:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3798 states. [2020-10-26 20:34:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 4203 transitions. [2020-10-26 20:34:27,013 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 4203 transitions. Word has length 247 [2020-10-26 20:34:27,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:27,013 INFO L481 AbstractCegarLoop]: Abstraction has 3798 states and 4203 transitions. [2020-10-26 20:34:27,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:34:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 4203 transitions. [2020-10-26 20:34:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-26 20:34:27,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:27,025 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:27,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:27,025 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:27,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash 857796289, now seen corresponding path program 1 times [2020-10-26 20:34:27,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:27,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330658282] [2020-10-26 20:34:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:27,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-26 20:34:27,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 20:34:27,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,046 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:28,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:28,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:28,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:28,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:28,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:28,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:28,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:28,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:34:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-26 20:34:28,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330658282] [2020-10-26 20:34:28,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:28,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:28,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801879014] [2020-10-26 20:34:28,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:34:28,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:28,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:34:28,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:28,423 INFO L87 Difference]: Start difference. First operand 3798 states and 4203 transitions. Second operand 5 states. [2020-10-26 20:34:29,684 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-26 20:34:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:30,240 INFO L93 Difference]: Finished difference Result 7540 states and 8393 transitions. [2020-10-26 20:34:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:30,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2020-10-26 20:34:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:30,274 INFO L225 Difference]: With dead ends: 7540 [2020-10-26 20:34:30,274 INFO L226 Difference]: Without dead ends: 3804 [2020-10-26 20:34:30,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:30,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2020-10-26 20:34:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3796. [2020-10-26 20:34:30,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3796 states. [2020-10-26 20:34:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 4196 transitions. [2020-10-26 20:34:30,380 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 4196 transitions. Word has length 267 [2020-10-26 20:34:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:30,381 INFO L481 AbstractCegarLoop]: Abstraction has 3796 states and 4196 transitions. [2020-10-26 20:34:30,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:34:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 4196 transitions. [2020-10-26 20:34:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-26 20:34:30,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:30,392 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:30,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:34:30,393 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:30,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:30,393 INFO L82 PathProgramCache]: Analyzing trace with hash -590881680, now seen corresponding path program 1 times [2020-10-26 20:34:30,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:30,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732507114] [2020-10-26 20:34:30,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1041 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-26 20:34:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 20:34:31,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,898 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:31,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:31,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:31,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:31,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:31,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:31,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:31,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:32,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:32,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:32,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:32,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:32,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:32,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:32,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:32,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:32,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:32,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:32,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:32,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:32,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:32,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:34:32,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:34:32,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:32,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:34:32,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-26 20:34:32,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732507114] [2020-10-26 20:34:32,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:32,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:32,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508103346] [2020-10-26 20:34:32,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:34:32,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:32,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:34:32,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:34:32,288 INFO L87 Difference]: Start difference. First operand 3796 states and 4196 transitions. Second operand 5 states. [2020-10-26 20:34:33,541 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:34:34,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:34,078 INFO L93 Difference]: Finished difference Result 7540 states and 8348 transitions. [2020-10-26 20:34:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:34,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 266 [2020-10-26 20:34:34,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:34,090 INFO L225 Difference]: With dead ends: 7540 [2020-10-26 20:34:34,091 INFO L226 Difference]: Without dead ends: 3802 [2020-10-26 20:34:34,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2020-10-26 20:34:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3794. [2020-10-26 20:34:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3794 states. [2020-10-26 20:34:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 4189 transitions. [2020-10-26 20:34:34,196 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 4189 transitions. Word has length 266 [2020-10-26 20:34:34,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:34,197 INFO L481 AbstractCegarLoop]: Abstraction has 3794 states and 4189 transitions. [2020-10-26 20:34:34,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:34:34,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 4189 transitions. [2020-10-26 20:34:34,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-10-26 20:34:34,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:34,210 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:34:34,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:34:34,210 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:34,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:34,211 INFO L82 PathProgramCache]: Analyzing trace with hash -905563840, now seen corresponding path program 1 times [2020-10-26 20:34:34,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:34,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111112358] [2020-10-26 20:34:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:34:39,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,483 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:39,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:39,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:39,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:39,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:34:39,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:34:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 20:34:39,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-10-26 20:34:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:39,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-26 20:34:39,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:39,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:34:39,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:39,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:34:39,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:39,884 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 300 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 20:34:39,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111112358] [2020-10-26 20:34:39,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:39,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:39,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664411009] [2020-10-26 20:34:39,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:39,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:39,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:39,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:39,886 INFO L87 Difference]: Start difference. First operand 3794 states and 4189 transitions. Second operand 8 states. [2020-10-26 20:34:40,230 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:34:42,183 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:34:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:43,441 INFO L93 Difference]: Finished difference Result 7681 states and 8505 transitions. [2020-10-26 20:34:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:43,442 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 288 [2020-10-26 20:34:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:43,454 INFO L225 Difference]: With dead ends: 7681 [2020-10-26 20:34:43,454 INFO L226 Difference]: Without dead ends: 4028 [2020-10-26 20:34:43,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:34:43,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2020-10-26 20:34:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 3885. [2020-10-26 20:34:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3885 states. [2020-10-26 20:34:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 4265 transitions. [2020-10-26 20:34:43,566 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 4265 transitions. Word has length 288 [2020-10-26 20:34:43,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:43,566 INFO L481 AbstractCegarLoop]: Abstraction has 3885 states and 4265 transitions. [2020-10-26 20:34:43,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 4265 transitions. [2020-10-26 20:34:43,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-26 20:34:43,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:43,581 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:43,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:34:43,582 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:43,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:43,582 INFO L82 PathProgramCache]: Analyzing trace with hash 453923291, now seen corresponding path program 1 times [2020-10-26 20:34:43,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:43,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830205770] [2020-10-26 20:34:43,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:34:44,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 20:34:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,401 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:44,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:44,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:44,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:34:44,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:44,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:34:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:34:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:44,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:34:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:44,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:44,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:34:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:34:44,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830205770] [2020-10-26 20:34:44,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:44,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:44,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712160998] [2020-10-26 20:34:44,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:44,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:44,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:44,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:44,691 INFO L87 Difference]: Start difference. First operand 3885 states and 4265 transitions. Second operand 6 states. [2020-10-26 20:34:45,739 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:46,460 INFO L93 Difference]: Finished difference Result 6816 states and 7486 transitions. [2020-10-26 20:34:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:34:46,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 305 [2020-10-26 20:34:46,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:46,471 INFO L225 Difference]: With dead ends: 6816 [2020-10-26 20:34:46,471 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:34:46,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:34:46,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:34:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:34:46,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:34:46,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 305 [2020-10-26 20:34:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:46,488 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:34:46,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:34:46,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:34:46,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:34:46,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:34:48,152 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 204 [2020-10-26 20:34:48,616 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 204 [2020-10-26 20:34:49,655 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 67 [2020-10-26 20:34:49,947 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 37 [2020-10-26 20:34:54,432 WARN L193 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 262 DAG size of output: 99 [2020-10-26 20:34:56,241 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 186 DAG size of output: 64 [2020-10-26 20:34:56,414 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:34:58,210 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 186 DAG size of output: 64 [2020-10-26 20:34:58,216 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:34:58,216 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:34:58,216 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:58,217 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,217 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:34:58,218 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,219 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,220 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L270 CegarLoopResult]: At program point L472(line 472) the Hoare annotation is: (let ((.cse11 (not (<= |old(~a17~0)| 0)))) (let ((.cse1 (not (= |old(~a21~0)| 1))) (.cse5 (not (= 0 |old(~a20~0)|))) (.cse6 (not (= 4 |old(~a16~0)|))) (.cse2 (not (= |old(~a7~0)| 0))) (.cse7 (and (not (< 1 |old(~a17~0)|)) .cse11)) (.cse9 (not (= |old(~a8~0)| 13))) (.cse0 (not (= |old(~a20~0)| 1))) (.cse8 (not (<= 5 |old(~a16~0)|))) (.cse10 (not (<= |old(~a16~0)| 5))) (.cse3 (not (<= 1 |old(~a7~0)|))) (.cse4 (not (<= |old(~a7~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or (not (= |old(~a17~0)| 1)) .cse1 .cse2) (or (not (<= |old(~a8~0)| 13)) .cse7 .cse2) (or .cse5 .cse2 .cse6) (or .cse8 .cse2) (or .cse9 .cse3 .cse4 .cse7) (or .cse8 .cse10 .cse3 .cse4 (not (<= |old(~a8~0)| 14))) (or .cse9 .cse10 .cse3 .cse0 .cse4) (or .cse8 (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) .cse10 .cse3 (not (<= 1 |old(~a21~0)|)) .cse4 .cse11 (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 0)))))) [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:34:58,221 INFO L274 CegarLoopResult]: For program point L472-1(line 472) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,222 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:34:58,223 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:34:58,224 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:34:58,225 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,226 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,227 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,228 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse12 (<= 1 ~a7~0)) (.cse18 (<= ~a7~0 1)) (.cse19 (not (<= |old(~a17~0)| 0))) (.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse14 (= ~a21~0 |old(~a21~0)|)) (.cse15 (= ~a20~0 |old(~a20~0)|)) (.cse16 (= ~a16~0 |old(~a16~0)|)) (.cse17 (= ~a8~0 |old(~a8~0)|)) (.cse23 (= ~a7~0 0))) (let ((.cse6 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse23)) (.cse4 (and (not (< 1 |old(~a17~0)|)) .cse19)) (.cse0 (not (= |old(~a8~0)| 13))) (.cse1 (and .cse12 .cse13 .cse14 .cse15 .cse16 (= ~a8~0 13) .cse18)) (.cse9 (not (= |old(~a20~0)| 1))) (.cse5 (not (<= 5 |old(~a16~0)|))) (.cse11 (not (<= |old(~a16~0)| 5))) (.cse2 (not (<= 1 |old(~a7~0)|))) (.cse3 (not (<= |old(~a7~0)| 1))) (.cse8 (and .cse13 (= ~a21~0 1) .cse15 .cse16 .cse17 .cse23)) (.cse10 (not (= |old(~a21~0)| 1))) (.cse21 (= ~a16~0 4)) (.cse20 (not (= 0 |old(~a20~0)|))) (.cse7 (not (= |old(~a7~0)| 0))) (.cse22 (not (= 4 |old(~a16~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse7) (or .cse6 (not (<= |old(~a8~0)| 13)) .cse4 .cse7) (or .cse8 .cse9 .cse10 .cse7) (or .cse5 .cse11 .cse2 .cse3 (not (<= |old(~a8~0)| 14)) (and .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse2 .cse9 .cse3) (or .cse5 (not (<= |old(~a8~0)| 15)) (not (<= |old(~a21~0)| 1)) .cse11 (not (<= 15 |old(~a8~0)|)) .cse2 (not (<= 1 |old(~a21~0)|)) (and .cse12 .cse13 .cse15 .cse16 (<= ~a21~0 1) (<= 1 ~a21~0) (<= ~a8~0 15) (<= 15 ~a8~0) .cse18) .cse3 .cse19 (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 0))) (or .cse2 .cse3 .cse20 (and .cse12 .cse13 .cse14 .cse15 .cse17 .cse21 .cse18) .cse22) (or (not (= |old(~a17~0)| 1)) .cse8 .cse10 .cse7) (or (and .cse13 .cse14 .cse15 .cse17 .cse21 .cse23) .cse20 .cse7 .cse22)))) [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:34:58,229 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:34:58,230 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:34:58,231 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:34:58,232 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a20~0 1) (<= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:34:58,233 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:34:58,233 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:34:58,233 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (<= 5 |old(~a16~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (<= 1 |old(~a17~0)|)) (not (= |old(~a20~0)| 1)) (not (<= |old(~a17~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:34:58,233 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:58,233 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 0))) (let ((.cse2 (= ~a20~0 0)) (.cse3 (= ~a16~0 4)) (.cse10 (or .cse8 (< 1 ~a17~0))) (.cse0 (= ~a21~0 1)) (.cse6 (<= 5 ~a16~0)) (.cse1 (= ~a7~0 0)) (.cse4 (<= 1 ~a7~0)) (.cse5 (<= ~a16~0 5)) (.cse9 (= ~a8~0 13)) (.cse11 (= ~a20~0 1)) (.cse7 (<= ~a7~0 1))) (or (and .cse0 .cse1 (= ~a17~0 1)) (and .cse2 .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= |old(~a20~0)| 1)) (and .cse4 (<= ~a8~0 14) .cse5 .cse6 .cse7) (and .cse4 .cse2 .cse3 .cse7) (not (= |old(~a21~0)| 1)) (and .cse4 .cse5 (= ~a12~0 8) .cse8 (<= ~a21~0 1) .cse6 (<= 1 ~a21~0) (<= ~a8~0 15) .cse7 (<= ~a20~0 0)) (and .cse4 .cse9 .cse10 .cse7) (not (= |old(~a17~0)| 1)) (and .cse10 .cse1 (<= ~a8~0 13)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse1) (and .cse6 .cse1) (not (= |old(~a7~0)| 0)) (and .cse4 .cse5 .cse9 .cse11 .cse7)))) [2020-10-26 20:34:58,233 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:34:58,233 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:34:58,234 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse8 (<= ~a17~0 0))) (let ((.cse2 (= ~a20~0 0)) (.cse3 (= ~a16~0 4)) (.cse10 (or .cse8 (< 1 ~a17~0))) (.cse0 (= ~a21~0 1)) (.cse6 (<= 5 ~a16~0)) (.cse1 (= ~a7~0 0)) (.cse4 (<= 1 ~a7~0)) (.cse5 (<= ~a16~0 5)) (.cse9 (= ~a8~0 13)) (.cse11 (= ~a20~0 1)) (.cse7 (<= ~a7~0 1))) (or (and .cse0 .cse1 (= ~a17~0 1)) (and .cse2 .cse3 .cse1) (not (<= 5 |old(~a16~0)|)) (not (= |old(~a20~0)| 1)) (and .cse4 (<= ~a8~0 14) .cse5 .cse6 .cse7) (and .cse4 .cse2 .cse3 .cse7) (not (= |old(~a21~0)| 1)) (and .cse4 .cse5 (= ~a12~0 8) .cse8 (<= ~a21~0 1) .cse6 (<= 1 ~a21~0) (<= ~a8~0 15) .cse7 (<= ~a20~0 0)) (and .cse4 .cse9 .cse10 .cse7) (not (= |old(~a17~0)| 1)) (and .cse10 .cse1 (<= ~a8~0 13)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse11 .cse1) (and .cse6 .cse1) (not (= |old(~a7~0)| 0)) (and .cse4 .cse5 .cse9 .cse11 .cse7)))) [2020-10-26 20:34:58,234 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:34:58,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:34:58 BoogieIcfgContainer [2020-10-26 20:34:58,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:34:58,262 INFO L168 Benchmark]: Toolchain (without parser) took 110406.83 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 141.5 MB in the beginning and 488.7 MB in the end (delta: -347.2 MB). Peak memory consumption was 758.4 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:58,263 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 99.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:34:58,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.21 ms. Allocated memory is still 167.8 MB. Free memory was 140.9 MB in the beginning and 145.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:58,264 INFO L168 Benchmark]: Boogie Preprocessor took 158.91 ms. Allocated memory is still 167.8 MB. Free memory was 145.6 MB in the beginning and 140.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:58,264 INFO L168 Benchmark]: RCFGBuilder took 1582.80 ms. Allocated memory is still 167.8 MB. Free memory was 140.5 MB in the beginning and 134.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:58,265 INFO L168 Benchmark]: TraceAbstraction took 107855.50 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 134.1 MB in the beginning and 488.7 MB in the end (delta: -354.6 MB). Peak memory consumption was 750.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:34:58,268 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory is still 99.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 796.21 ms. Allocated memory is still 167.8 MB. Free memory was 140.9 MB in the beginning and 145.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 158.91 ms. Allocated memory is still 167.8 MB. Free memory was 145.6 MB in the beginning and 140.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1582.80 ms. Allocated memory is still 167.8 MB. Free memory was 140.5 MB in the beginning and 134.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 53.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 107855.50 ms. Allocated memory was 167.8 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 134.1 MB in the beginning and 488.7 MB in the end (delta: -354.6 MB). Peak memory consumption was 750.6 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: 585]: Loop Invariant Derived loop invariant: ((((((((((((((((a21 == 1 && a7 == 0) && a17 == 1) || ((a20 == 0 && a16 == 4) && a7 == 0)) || !(5 <= \old(a16))) || !(\old(a20) == 1)) || ((((1 <= a7 && a8 <= 14) && a16 <= 5) && 5 <= a16) && a7 <= 1)) || (((1 <= a7 && a20 == 0) && a16 == 4) && a7 <= 1)) || !(\old(a21) == 1)) || (((((((((1 <= a7 && a16 <= 5) && a12 == 8) && a17 <= 0) && a21 <= 1) && 5 <= a16) && 1 <= a21) && a8 <= 15) && a7 <= 1) && a20 <= 0)) || (((1 <= a7 && a8 == 13) && (a17 <= 0 || 1 < a17)) && a7 <= 1)) || !(\old(a17) == 1)) || (((a17 <= 0 || 1 < a17) && a7 == 0) && a8 <= 13)) || !(\old(a16) <= 5)) || ((a21 == 1 && a20 == 1) && a7 == 0)) || (5 <= a16 && a7 == 0)) || !(\old(a7) == 0)) || ((((1 <= a7 && a16 <= 5) && a8 == 13) && a20 == 1) && a7 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 96.0s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 39.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 454 SDtfs, 6073 SDslu, 517 SDs, 0 SdLazy, 11435 SolverSat, 1381 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 164 SyntacticMatches, 4 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3885occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 16 MinimizatonAttempts, 883 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 592 PreInvPairs, 670 NumberOfFragments, 1088 HoareAnnotationTreeSize, 592 FomulaSimplifications, 310060 FormulaSimplificationTreeSizeReduction, 2.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 17840 FormulaSimplificationTreeSizeReductionInter, 9.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 53.0s InterpolantComputationTime, 3109 NumberOfCodeBlocks, 3109 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3093 ConstructedInterpolants, 0 QuantifiedInterpolants, 3490365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 2508/2601 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...