/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:31:51,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:31:51,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:31:51,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:31:51,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:31:51,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:31:51,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:31:51,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:31:51,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:31:51,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:31:51,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:31:51,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:31:51,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:31:51,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:31:51,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:31:51,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:31:51,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:31:51,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:31:51,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:31:51,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:31:51,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:31:51,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:31:51,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:31:51,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:31:51,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:31:51,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:31:51,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:31:51,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:31:51,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:31:51,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:31:51,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:31:51,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:31:51,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:31:51,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:31:51,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:31:51,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:31:51,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:31:51,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:31:51,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:31:51,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:31:51,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:31:51,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 15:31:51,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:31:51,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:31:51,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:31:51,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:31:51,235 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:31:51,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:31:51,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:31:51,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:31:51,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:31:51,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:31:51,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:31:51,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:31:51,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:31:51,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:31:51,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:31:51,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:31:51,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:31:51,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:31:51,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:31:51,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:31:51,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:31:51,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:31:51,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:31:51,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:31:51,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:31:51,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:31:51,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:31:51,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:31:51,241 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:31:51,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:31:51,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:31:51,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:31:51,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:31:51,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:31:51,663 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:31:51,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2020-10-27 15:31:51,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb29aae05/210f662c33834d56ab69f3aaa62eee06/FLAGe969b2d51 [2020-10-27 15:31:52,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:31:52,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2020-10-27 15:31:52,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb29aae05/210f662c33834d56ab69f3aaa62eee06/FLAGe969b2d51 [2020-10-27 15:31:52,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb29aae05/210f662c33834d56ab69f3aaa62eee06 [2020-10-27 15:31:52,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:31:52,861 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:31:52,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:31:52,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:31:52,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:31:52,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:52" (1/1) ... [2020-10-27 15:31:52,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6e5ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:52, skipping insertion in model container [2020-10-27 15:31:52,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:31:52" (1/1) ... [2020-10-27 15:31:52,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:31:52,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:31:53,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:31:53,450 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:31:53,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:31:53,670 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:31:53,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53 WrapperNode [2020-10-27 15:31:53,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:31:53,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:31:53,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:31:53,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:31:53,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... [2020-10-27 15:31:53,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:31:53,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:31:53,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:31:53,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:31:53,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:31:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:31:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:31:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:31:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:31:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:31:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:31:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:31:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:31:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:31:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:31:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:31:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:31:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:31:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:31:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:31:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:31:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:31:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:31:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:31:55,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:31:55,262 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:31:55,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:55 BoogieIcfgContainer [2020-10-27 15:31:55,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:31:55,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:31:55,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:31:55,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:31:55,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:31:52" (1/3) ... [2020-10-27 15:31:55,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778019c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:55, skipping insertion in model container [2020-10-27 15:31:55,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:31:53" (2/3) ... [2020-10-27 15:31:55,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778019c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:31:55, skipping insertion in model container [2020-10-27 15:31:55,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:31:55" (3/3) ... [2020-10-27 15:31:55,274 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label16.c [2020-10-27 15:31:55,287 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:31:55,293 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:31:55,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:31:55,339 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:31:55,340 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:31:55,340 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:31:55,340 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:31:55,340 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:31:55,340 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:31:55,340 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:31:55,341 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:31:55,365 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:31:55,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-27 15:31:55,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:31:55,382 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:31:55,382 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:31:55,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:31:55,389 INFO L82 PathProgramCache]: Analyzing trace with hash -2047554309, now seen corresponding path program 1 times [2020-10-27 15:31:55,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:31:55,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861068899] [2020-10-27 15:31:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:31:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:55,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:56,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:58,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 15:31:58,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:31:58,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2411 [2020-10-27 15:31:58,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:31:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:31:58,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 15:31:58,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:31:58,470 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:31:58,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:31:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:31:58,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:31:58,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:31:58,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:31:58,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:31:58,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 15:31:58,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:31:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:31:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:31:58,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:31:58,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:31:58,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:31:58,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861068899] [2020-10-27 15:31:58,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:31:58,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 15:31:58,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028025523] [2020-10-27 15:31:58,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:31:58,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:31:58,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:31:58,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:31:58,650 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-27 15:31:58,865 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:32:00,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:00,766 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-27 15:32:00,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:00,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2020-10-27 15:32:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:00,792 INFO L225 Difference]: With dead ends: 562 [2020-10-27 15:32:00,792 INFO L226 Difference]: Without dead ends: 287 [2020-10-27 15:32:00,802 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 [2020-10-27 15:32:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-27 15:32:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-27 15:32:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 15:32:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-27 15:32:00,901 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 137 [2020-10-27 15:32:00,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:00,902 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-27 15:32:00,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:32:00,903 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-27 15:32:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 15:32:00,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:00,911 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:00,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:32:00,911 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:00,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:00,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1116371898, now seen corresponding path program 1 times [2020-10-27 15:32:00,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:00,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [859018613] [2020-10-27 15:32:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:01,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:03,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:05,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:05,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-27 15:32:05,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:05,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4335 [2020-10-27 15:32:05,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 15:32:05,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 15:32:05,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:05,555 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:32:05,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:05,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:05,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:05,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:05,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:05,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 15:32:05,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:05,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:05,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:05,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:32:05,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:05,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:05,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:05,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 15:32:05,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:05,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:32:05,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:05,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:05,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 15:32:05,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:05,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [859018613] [2020-10-27 15:32:05,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:05,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:05,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912665554] [2020-10-27 15:32:05,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:05,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:05,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:05,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:05,702 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-27 15:32:05,844 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:32:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:07,176 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2020-10-27 15:32:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:07,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-27 15:32:07,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:07,196 INFO L225 Difference]: With dead ends: 836 [2020-10-27 15:32:07,196 INFO L226 Difference]: Without dead ends: 561 [2020-10-27 15:32:07,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:07,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-27 15:32:07,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2020-10-27 15:32:07,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-27 15:32:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2020-10-27 15:32:07,313 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 146 [2020-10-27 15:32:07,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:07,314 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2020-10-27 15:32:07,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2020-10-27 15:32:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 15:32:07,329 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:07,330 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:07,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:32:07,330 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:07,331 INFO L82 PathProgramCache]: Analyzing trace with hash 55935818, now seen corresponding path program 1 times [2020-10-27 15:32:07,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:07,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1787185427] [2020-10-27 15:32:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:07,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:07,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:08,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:08,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-27 15:32:08,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-10-27 15:32:08,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:08,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 15:32:08,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 15:32:08,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:09,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:09,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:09,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:09,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:32:09,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:09,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:09,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:09,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:32:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:09,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:09,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:09,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:32:09,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:09,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 15:32:09,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:09,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:32:09,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:09,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1787185427] [2020-10-27 15:32:09,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:09,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:09,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581829076] [2020-10-27 15:32:09,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:09,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:09,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:09,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:09,239 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 5 states. [2020-10-27 15:32:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:10,875 INFO L93 Difference]: Finished difference Result 1521 states and 2142 transitions. [2020-10-27 15:32:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:10,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2020-10-27 15:32:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:10,891 INFO L225 Difference]: With dead ends: 1521 [2020-10-27 15:32:10,892 INFO L226 Difference]: Without dead ends: 972 [2020-10-27 15:32:10,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2020-10-27 15:32:10,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 968. [2020-10-27 15:32:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 968 states. [2020-10-27 15:32:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1313 transitions. [2020-10-27 15:32:10,994 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1313 transitions. Word has length 154 [2020-10-27 15:32:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:10,995 INFO L481 AbstractCegarLoop]: Abstraction has 968 states and 1313 transitions. [2020-10-27 15:32:10,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:10,995 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1313 transitions. [2020-10-27 15:32:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-27 15:32:11,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:11,008 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:11,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:32:11,008 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:11,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:11,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1186550032, now seen corresponding path program 1 times [2020-10-27 15:32:11,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:11,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417701166] [2020-10-27 15:32:11,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:11,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:11,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:12,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:16,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 15:32:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:32:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 15:32:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:32:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-27 15:32:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 15:32:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:16,672 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-27 15:32:16,885 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2020-10-27 15:32:17,075 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2020-10-27 15:32:17,211 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2020-10-27 15:32:17,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:17,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:17,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:17,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:17,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:17,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:17,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:17,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:17,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 15:32:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:17,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:17,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:17,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-27 15:32:17,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:17,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 15:32:17,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:17,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:32:17,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 15:32:17,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417701166] [2020-10-27 15:32:17,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:17,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:32:17,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443248083] [2020-10-27 15:32:17,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:32:17,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:17,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:32:17,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:32:17,817 INFO L87 Difference]: Start difference. First operand 968 states and 1313 transitions. Second operand 13 states. [2020-10-27 15:32:18,311 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-10-27 15:32:18,601 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 15:32:18,893 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 15:32:19,661 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 142 [2020-10-27 15:32:20,287 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 139 [2020-10-27 15:32:21,013 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136 [2020-10-27 15:32:21,491 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 133 [2020-10-27 15:32:22,185 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 128 [2020-10-27 15:32:22,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:22,676 INFO L93 Difference]: Finished difference Result 1990 states and 2748 transitions. [2020-10-27 15:32:22,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:32:22,677 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 170 [2020-10-27 15:32:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:22,687 INFO L225 Difference]: With dead ends: 1990 [2020-10-27 15:32:22,687 INFO L226 Difference]: Without dead ends: 1028 [2020-10-27 15:32:22,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:32:22,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2020-10-27 15:32:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1022. [2020-10-27 15:32:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2020-10-27 15:32:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1378 transitions. [2020-10-27 15:32:22,755 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1378 transitions. Word has length 170 [2020-10-27 15:32:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:22,756 INFO L481 AbstractCegarLoop]: Abstraction has 1022 states and 1378 transitions. [2020-10-27 15:32:22,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:32:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1378 transitions. [2020-10-27 15:32:22,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-27 15:32:22,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:22,764 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:22,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:32:22,765 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:22,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:22,765 INFO L82 PathProgramCache]: Analyzing trace with hash 423209969, now seen corresponding path program 1 times [2020-10-27 15:32:22,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:22,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143203762] [2020-10-27 15:32:22,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:22,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:22,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:23,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:24,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:24,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1641 [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-27 15:32:24,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 15:32:24,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:24,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:24,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:24,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:24,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:24,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:24,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:24,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:24,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 15:32:24,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:24,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:32:24,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:24,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 15:32:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:32:24,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143203762] [2020-10-27 15:32:24,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:24,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 15:32:24,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089383012] [2020-10-27 15:32:24,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 15:32:24,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:24,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 15:32:24,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:24,963 INFO L87 Difference]: Start difference. First operand 1022 states and 1378 transitions. Second operand 6 states. [2020-10-27 15:32:25,462 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:32:26,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:26,510 INFO L93 Difference]: Finished difference Result 2125 states and 2928 transitions. [2020-10-27 15:32:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:26,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-10-27 15:32:26,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:26,517 INFO L225 Difference]: With dead ends: 2125 [2020-10-27 15:32:26,518 INFO L226 Difference]: Without dead ends: 1026 [2020-10-27 15:32:26,521 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:32:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-27 15:32:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1022. [2020-10-27 15:32:26,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2020-10-27 15:32:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1371 transitions. [2020-10-27 15:32:26,561 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1371 transitions. Word has length 171 [2020-10-27 15:32:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:26,561 INFO L481 AbstractCegarLoop]: Abstraction has 1022 states and 1371 transitions. [2020-10-27 15:32:26,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 15:32:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1371 transitions. [2020-10-27 15:32:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-27 15:32:26,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:26,566 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:26,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:32:26,567 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:26,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:26,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1903641884, now seen corresponding path program 1 times [2020-10-27 15:32:26,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:26,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452098916] [2020-10-27 15:32:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:26,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:26,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:31,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:31,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-27 15:32:31,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:32:31,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-27 15:32:31,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 15:32:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 15:32:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 15:32:31,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:32,075 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-27 15:32:32,263 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2020-10-27 15:32:32,516 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-10-27 15:32:32,690 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2020-10-27 15:32:32,875 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-27 15:32:33,059 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-10-27 15:32:33,244 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-27 15:32:33,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:33,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:33,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:33,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:33,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:33,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:33,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:33,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:33,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:32:33,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:33,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 15:32:33,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:33,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:33,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:33,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 15:32:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:33,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:33,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:33,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 15:32:33,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:33,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 15:32:33,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:33,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 15:32:33,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 15:32:33,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452098916] [2020-10-27 15:32:33,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:33,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 15:32:33,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083064258] [2020-10-27 15:32:33,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 15:32:33,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:33,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 15:32:33,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-27 15:32:33,678 INFO L87 Difference]: Start difference. First operand 1022 states and 1371 transitions. Second operand 13 states. [2020-10-27 15:32:34,365 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-27 15:32:34,590 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 15:32:35,071 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 125 [2020-10-27 15:32:35,857 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124 [2020-10-27 15:32:36,376 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123 [2020-10-27 15:32:37,046 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122 [2020-10-27 15:32:37,770 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2020-10-27 15:32:37,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:37,978 INFO L93 Difference]: Finished difference Result 2107 states and 2887 transitions. [2020-10-27 15:32:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 15:32:37,980 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-10-27 15:32:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:37,987 INFO L225 Difference]: With dead ends: 2107 [2020-10-27 15:32:37,988 INFO L226 Difference]: Without dead ends: 1091 [2020-10-27 15:32:37,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-27 15:32:37,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2020-10-27 15:32:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1087. [2020-10-27 15:32:38,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-10-27 15:32:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1448 transitions. [2020-10-27 15:32:38,032 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1448 transitions. Word has length 176 [2020-10-27 15:32:38,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:38,032 INFO L481 AbstractCegarLoop]: Abstraction has 1087 states and 1448 transitions. [2020-10-27 15:32:38,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 15:32:38,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1448 transitions. [2020-10-27 15:32:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-27 15:32:38,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:38,038 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:32:38,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:32:38,038 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:38,039 INFO L82 PathProgramCache]: Analyzing trace with hash -678027204, now seen corresponding path program 1 times [2020-10-27 15:32:38,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:38,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66538282] [2020-10-27 15:32:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:40,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:40,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:42,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:42,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-27 15:32:42,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:32:42,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4564 [2020-10-27 15:32:42,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 15:32:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 15:32:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:42,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:42,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:42,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:42,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:42,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:42,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:32:42,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:42,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:42,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:42,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:42,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:42,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:32:42,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:42,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:42,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 15:32:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:42,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:42,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:42,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 15:32:42,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:42,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 15:32:42,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:42,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 15:32:42,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 15:32:43,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66538282] [2020-10-27 15:32:43,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:43,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:43,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281968110] [2020-10-27 15:32:43,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:43,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:43,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:43,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:43,007 INFO L87 Difference]: Start difference. First operand 1087 states and 1448 transitions. Second operand 5 states. [2020-10-27 15:32:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:44,486 INFO L93 Difference]: Finished difference Result 2988 states and 4059 transitions. [2020-10-27 15:32:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:44,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2020-10-27 15:32:44,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:44,500 INFO L225 Difference]: With dead ends: 2988 [2020-10-27 15:32:44,500 INFO L226 Difference]: Without dead ends: 1907 [2020-10-27 15:32:44,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:44,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2020-10-27 15:32:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1907. [2020-10-27 15:32:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1907 states. [2020-10-27 15:32:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 2441 transitions. [2020-10-27 15:32:44,571 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 2441 transitions. Word has length 192 [2020-10-27 15:32:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:44,571 INFO L481 AbstractCegarLoop]: Abstraction has 1907 states and 2441 transitions. [2020-10-27 15:32:44,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 2441 transitions. [2020-10-27 15:32:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-27 15:32:44,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:32:44,579 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-27 15:32:44,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:32:44,580 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:32:44,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:32:44,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1283416442, now seen corresponding path program 1 times [2020-10-27 15:32:44,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:32:44,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699131500] [2020-10-27 15:32:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:32:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:44,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:47,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:48,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:48,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:48,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:48,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 15:32:48,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4372 [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 15:32:48,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:49,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:32:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:49,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:49,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:32:49,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:49,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:32:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:32:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:49,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:49,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:49,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:32:49,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:49,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:32:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:49,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:49,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:49,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:32:49,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:49,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:32:49,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:32:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:49,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:32:49,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:49,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 15:32:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:32:49,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:32:49,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:32:49,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:32:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 15:32:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:32:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-27 15:32:49,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699131500] [2020-10-27 15:32:49,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:32:49,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:32:49,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786319493] [2020-10-27 15:32:49,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:32:49,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:32:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:32:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:32:49,476 INFO L87 Difference]: Start difference. First operand 1907 states and 2441 transitions. Second operand 5 states. [2020-10-27 15:32:50,275 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 15:32:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:32:50,890 INFO L93 Difference]: Finished difference Result 3877 states and 5083 transitions. [2020-10-27 15:32:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:32:50,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2020-10-27 15:32:50,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:32:50,891 INFO L225 Difference]: With dead ends: 3877 [2020-10-27 15:32:50,891 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 15:32:50,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:32:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 15:32:50,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 15:32:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 15:32:50,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 15:32:50,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 216 [2020-10-27 15:32:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:32:50,901 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 15:32:50,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:32:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 15:32:50,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 15:32:50,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:32:50,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 15:32:51,825 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2020-10-27 15:32:51,931 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 28 [2020-10-27 15:32:53,466 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 250 DAG size of output: 150 [2020-10-27 15:32:53,636 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 15:32:53,850 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-27 15:32:53,855 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 15:32:53,855 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 15:32:53,856 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 15:32:53,856 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 15:32:53,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:32:53,856 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)|)) [2020-10-27 15:32:53,856 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-27 15:32:53,857 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-27 15:32:53,858 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-27 15:32:53,859 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-27 15:32:53,860 INFO L270 CegarLoopResult]: At program point L568(line 568) the Hoare annotation is: (let ((.cse6 (= |old(~a21~0)| 1)) (.cse7 (= |old(~a20~0)| 1)) (.cse8 (= |old(~a7~0)| 1))) (let ((.cse2 (not (<= |old(~a17~0)| 0))) (.cse0 (not .cse8)) (.cse1 (not .cse7)) (.cse5 (not (= |old(~a8~0)| 13))) (.cse3 (not .cse6)) (.cse4 (not (= ~a12~0 8)))) (and (or (not (= 14 |old(~a8~0)|)) .cse0 .cse1 .cse2 (not (= 5 |old(~a16~0)|)) .cse3 .cse4) (or (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) (not (<= |old(~a8~0)| 13)) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) .cse2 (not (< 12 |old(~a8~0)|)) (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) .cse4 (not (< 0 |old(~a20~0)|)) (not (<= |old(~a20~0)| 1))) (or .cse5 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) .cse0 (not (= 6 |old(~a16~0)|)) .cse1 .cse6 .cse4 (not (= 0 |old(~a17~0)|))) (or .cse5 .cse7 (= |old(~a17~0)| 1) .cse3 .cse4 (not (= 4 |old(~a16~0)|)) .cse8) (not (= |old(~a7~0)| |old(~a17~0)|)) (not (= |old(~a17~0)| |old(~a20~0)|)) (not (= 15 |old(~a8~0)|))))) [2020-10-27 15:32:53,860 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-27 15:32:53,860 INFO L274 CegarLoopResult]: For program point L568-1(line 568) no Hoare annotation was computed. [2020-10-27 15:32:53,860 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-27 15:32:53,860 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,861 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-27 15:32:53,862 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,863 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-27 15:32:53,864 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-27 15:32:53,865 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-27 15:32:53,866 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,867 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,868 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-27 15:32:53,869 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,870 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-27 15:32:53,871 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-27 15:32:53,872 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-27 15:32:53,872 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-27 15:32:53,872 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,872 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,872 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse14 (= |old(~a21~0)| 1)) (.cse15 (= |old(~a20~0)| 1)) (.cse16 (= |old(~a7~0)| 1))) (let ((.cse0 (not .cse16)) (.cse1 (not .cse15)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse8 (= ~a8~0 |old(~a8~0)|)) (.cse12 (not (= |old(~a8~0)| 13))) (.cse5 (= ~a21~0 1)) (.cse13 (= ~a8~0 13)) (.cse9 (not .cse14)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse10 (not (= ~a12~0 8)))) (and (or (not (= 14 |old(~a8~0)|)) .cse0 .cse1 .cse2 (not (= 5 |old(~a16~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) .cse9 .cse10) (or (not (= |old(~a7~0)| |old(~a17~0)|)) (and .cse4 .cse11 .cse6 .cse7 .cse8 (= ~a17~0 ~a7~0))) (or .cse12 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1)))) (and .cse3 .cse4 .cse11 .cse6 .cse7 .cse13) .cse0 (not (= 6 |old(~a16~0)|)) .cse1 .cse14 .cse10 (not (= 0 |old(~a17~0)|))) (or (and .cse3 .cse4 .cse11 .cse6 .cse7 (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) (or (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse3 .cse4 .cse11 .cse6 .cse7 .cse8)) (or .cse12 .cse15 (= |old(~a17~0)| 1) (and .cse3 .cse4 .cse5 .cse6 .cse13 (= ~a16~0 4)) .cse9 .cse10 (not (= 4 |old(~a16~0)|)) .cse16) (or (and .cse3 .cse4 (< 12 ~a8~0) .cse11 .cse6 (<= ~a16~0 4) (<= 4 ~a16~0) (<= ~a8~0 13)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) (not (<= |old(~a16~0)| 4)) (not (<= |old(~a7~0)| 1)) .cse2 (not (<= |old(~a20~0)| 1)) (not (< 0 |old(~a7~0)|)) (not (<= 4 |old(~a16~0)|)) (not (<= |old(~a8~0)| 13)) (not (< 12 |old(~a8~0)|)) (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6))) .cse10 (not (< 0 |old(~a20~0)|)))))) [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-27 15:32:53,873 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,874 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-27 15:32:53,875 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,876 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-27 15:32:53,877 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 15:32:53,878 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a20~0 ~a17~0) (= ~a8~0 15) (= ~a17~0 1)) [2020-10-27 15:32:53,878 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 15:32:53,878 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 15:32:53,879 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (= |old(~a17~0)| |old(~a20~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15)) (not (= 15 |old(~a8~0)|))) [2020-10-27 15:32:53,879 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:32:53,879 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (= ~a21~0 1)) (.cse3 (= ~a8~0 13)) (.cse0 (= ~a7~0 1)) (.cse4 (= ~a20~0 1)) (.cse1 (= ~a12~0 8)) (.cse5 (<= ~a17~0 0))) (or (not (= |old(~a17~0)| 1)) (= ~a20~0 ~a17~0) (not (= |old(~a17~0)| |old(~a20~0)|)) (and .cse0 (= ~a16~0 6) .cse1 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0))) (not .cse2) .cse3 .cse4 (= ~a17~0 0)) (= ~a8~0 15) (and .cse2 .cse0 (= 14 ~a8~0) .cse1 .cse5 .cse4 (= 5 ~a16~0)) (and .cse2 (not (= ~a17~0 1)) .cse1 .cse3 (= ~a16~0 4) (not .cse0) (not .cse4)) (not (= 15 |old(~a8~0)|)) (= ~a17~0 ~a7~0) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) (<= ~a16~0 4) (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0)) .cse1 .cse5 (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13)))) [2020-10-27 15:32:53,879 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-27 15:32:53,879 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-27 15:32:53,879 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 0)) (.cse3 (= ~a21~0 1)) (.cse0 (= ~a12~0 8)) (.cse4 (= ~a8~0 13)) (.cse2 (= ~a7~0 1)) (.cse5 (= ~a20~0 1))) (or (not (= |old(~a17~0)| 1)) (and (<= 1 ~a7~0) (<= 13 ~a8~0) (<= 1 ~a20~0) (<= ~a16~0 4) .cse0 .cse1 (<= 4 ~a16~0) (<= ~a20~0 1) (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) (<= ~a8~0 13)) (= ~a20~0 ~a17~0) (and .cse2 (= ~a16~0 6) .cse0 (not .cse3) .cse4 .cse5 (= ~a17~0 0)) (not (= |old(~a17~0)| |old(~a20~0)|)) (= ~a8~0 15) (and .cse3 .cse2 (= 14 ~a8~0) .cse0 .cse1 .cse5 (= 5 ~a16~0)) (and .cse3 (not (= ~a17~0 1)) .cse0 .cse4 (= ~a16~0 4) (not .cse2) (not .cse5)) (not (= 15 |old(~a8~0)|)) (= ~a17~0 ~a7~0))) [2020-10-27 15:32:53,880 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-27 15:32:53,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:32:53 BoogieIcfgContainer [2020-10-27 15:32:53,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:32:53,906 INFO L168 Benchmark]: Toolchain (without parser) took 61049.01 ms. Allocated memory was 160.4 MB in the beginning and 906.0 MB in the end (delta: 745.5 MB). Free memory was 133.6 MB in the beginning and 669.6 MB in the end (delta: -536.0 MB). Peak memory consumption was 541.3 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:53,906 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:32:53,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.28 ms. Allocated memory is still 160.4 MB. Free memory was 133.0 MB in the beginning and 137.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:53,908 INFO L168 Benchmark]: Boogie Preprocessor took 121.89 ms. Allocated memory is still 160.4 MB. Free memory was 137.5 MB in the beginning and 132.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:53,908 INFO L168 Benchmark]: RCFGBuilder took 1469.33 ms. Allocated memory is still 160.4 MB. Free memory was 132.8 MB in the beginning and 115.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:53,909 INFO L168 Benchmark]: TraceAbstraction took 58637.57 ms. Allocated memory was 160.4 MB in the beginning and 906.0 MB in the end (delta: 745.5 MB). Free memory was 114.5 MB in the beginning and 669.6 MB in the end (delta: -555.2 MB). Peak memory consumption was 521.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:32:53,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 808.28 ms. Allocated memory is still 160.4 MB. Free memory was 133.0 MB in the beginning and 137.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 121.89 ms. Allocated memory is still 160.4 MB. Free memory was 137.5 MB in the beginning and 132.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1469.33 ms. Allocated memory is still 160.4 MB. Free memory was 132.8 MB in the beginning and 115.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 58637.57 ms. Allocated memory was 160.4 MB in the beginning and 906.0 MB in the end (delta: 745.5 MB). Free memory was 114.5 MB in the beginning and 669.6 MB in the end (delta: -555.2 MB). Peak memory consumption was 521.7 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: ((((((((!(\old(a17) == 1) || ((((((((((1 <= a7 && 13 <= a8) && 1 <= a20) && a16 <= 4) && a12 == 8) && a17 <= 0) && 4 <= a16) && a20 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13)) || a20 == a17) || ((((((a7 == 1 && a16 == 6) && a12 == 8) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || !(\old(a17) == \old(a20))) || a8 == 15) || ((((((a21 == 1 && a7 == 1) && 14 == a8) && a12 == 8) && a17 <= 0) && a20 == 1) && 5 == a16)) || ((((((a21 == 1 && !(a17 == 1)) && a12 == 8) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || !(15 == \old(a8))) || a17 == a7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.5s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 19.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 201 SDtfs, 2367 SDslu, 210 SDs, 0 SdLazy, 5596 SolverSat, 634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1907occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 30 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 158 PreInvPairs, 196 NumberOfFragments, 1048 HoareAnnotationTreeSize, 158 FomulaSimplifications, 24666 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2307 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 34.3s InterpolantComputationTime, 1362 NumberOfCodeBlocks, 1362 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1354 ConstructedInterpolants, 0 QuantifiedInterpolants, 2207753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 277/289 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...