/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:01:10,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:01:10,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:01:10,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:01:10,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:01:10,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:01:10,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:01:10,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:01:10,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:01:10,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:01:10,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:01:10,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:01:10,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:01:10,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:01:10,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:01:10,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:01:10,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:01:10,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:01:10,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:01:10,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:01:10,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:01:10,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:01:10,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:01:10,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:01:10,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:01:10,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:01:10,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:01:10,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:01:10,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:01:10,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:01:10,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:01:10,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:01:10,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:01:10,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:01:10,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:01:10,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:01:10,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:01:10,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:01:10,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:01:10,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:01:10,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:01:10,230 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 [2020-10-28 12:01:10,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:01:10,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:01:10,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:01:10,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:01:10,286 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:01:10,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:01:10,286 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:01:10,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:01:10,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:01:10,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:01:10,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:01:10,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:01:10,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:01:10,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:01:10,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:01:10,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:01:10,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:01:10,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:01:10,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:01:10,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:01:10,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:01:10,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:01:10,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:01:10,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:01:10,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:01:10,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:01:10,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:01:10,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:01:10,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:01:10,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:01:10,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:01:10,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:01:10,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:01:10,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:01:10,773 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:01:10,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-28 12:01:10,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62077879b/1b5aabd7d22b4f1db258ed3586cb8c4d/FLAGbafe739e3 [2020-10-28 12:01:11,665 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:01:11,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-10-28 12:01:11,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62077879b/1b5aabd7d22b4f1db258ed3586cb8c4d/FLAGbafe739e3 [2020-10-28 12:01:11,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62077879b/1b5aabd7d22b4f1db258ed3586cb8c4d [2020-10-28 12:01:11,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:01:11,921 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:01:11,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:01:11,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:01:11,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:01:11,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:01:11" (1/1) ... [2020-10-28 12:01:11,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115247e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:11, skipping insertion in model container [2020-10-28 12:01:11,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:01:11" (1/1) ... [2020-10-28 12:01:11,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:01:12,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:01:12,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:01:12,614 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:01:12,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:01:12,808 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:01:12,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12 WrapperNode [2020-10-28 12:01:12,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:01:12,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:01:12,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:01:12,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:01:12,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (1/1) ... [2020-10-28 12:01:12,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:01:12,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:01:12,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:01:12,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:01:12,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (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 [2020-10-28 12:01:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:01:13,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:01:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:01:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:01:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:01:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:01:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:01:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:01:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:01:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:01:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:01:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:01:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:01:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:01:13,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:01:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:01:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:01:13,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:01:13,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:01:14,655 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:01:14,655 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:01:14,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:01:14 BoogieIcfgContainer [2020-10-28 12:01:14,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:01:14,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:01:14,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:01:14,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:01:14,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:01:11" (1/3) ... [2020-10-28 12:01:14,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51774efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:01:14, skipping insertion in model container [2020-10-28 12:01:14,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:01:12" (2/3) ... [2020-10-28 12:01:14,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51774efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:01:14, skipping insertion in model container [2020-10-28 12:01:14,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:01:14" (3/3) ... [2020-10-28 12:01:14,668 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-10-28 12:01:14,681 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:01:14,687 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:01:14,710 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:01:14,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:01:14,743 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:01:14,744 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:01:14,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:01:14,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:01:14,744 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:01:14,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:01:14,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:01:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 12:01:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-28 12:01:14,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:14,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:14,782 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:14,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:14,789 INFO L82 PathProgramCache]: Analyzing trace with hash -2022545268, now seen corresponding path program 1 times [2020-10-28 12:01:14,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:14,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472532227] [2020-10-28 12:01:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:15,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:15,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:15,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-28 12:01:15,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 563 [2020-10-28 12:01:15,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:15,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-28 12:01:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:01:15,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:15,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:15,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:15,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:15,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:15,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:01:15,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:15,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:15,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:01:15,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:15,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472532227] [2020-10-28 12:01:15,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:01:15,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:01:15,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163179912] [2020-10-28 12:01:15,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:15,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:15,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:15,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:15,922 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 5 states. [2020-10-28 12:01:18,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:18,137 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-28 12:01:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:18,139 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2020-10-28 12:01:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:18,157 INFO L225 Difference]: With dead ends: 586 [2020-10-28 12:01:18,157 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 12:01:18,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:18,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 12:01:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 12:01:18,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 12:01:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-28 12:01:18,250 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 48 [2020-10-28 12:01:18,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:18,251 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-28 12:01:18,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-28 12:01:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-28 12:01:18,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:18,257 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:18,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:01:18,258 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:18,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:18,259 INFO L82 PathProgramCache]: Analyzing trace with hash 142672144, now seen corresponding path program 1 times [2020-10-28 12:01:18,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:18,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277782705] [2020-10-28 12:01:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:18,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:18,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 12:01:19,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 762 [2020-10-28 12:01:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:19,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 12:01:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:19,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:01:19,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:19,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:19,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:19,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277782705] [2020-10-28 12:01:19,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:19,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:19,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636687005] [2020-10-28 12:01:19,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:19,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:19,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:19,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:19,467 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-28 12:01:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:21,087 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2020-10-28 12:01:21,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:21,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-10-28 12:01:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:21,102 INFO L225 Difference]: With dead ends: 886 [2020-10-28 12:01:21,102 INFO L226 Difference]: Without dead ends: 593 [2020-10-28 12:01:21,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:21,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-28 12:01:21,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-10-28 12:01:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-28 12:01:21,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 757 transitions. [2020-10-28 12:01:21,187 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 757 transitions. Word has length 118 [2020-10-28 12:01:21,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:21,188 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 757 transitions. [2020-10-28 12:01:21,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 757 transitions. [2020-10-28 12:01:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-28 12:01:21,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:21,192 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:21,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:01:21,193 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:21,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:21,193 INFO L82 PathProgramCache]: Analyzing trace with hash 211600400, now seen corresponding path program 1 times [2020-10-28 12:01:21,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:21,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289002856] [2020-10-28 12:01:21,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:22,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:22,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-28 12:01:22,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:22,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 840 [2020-10-28 12:01:22,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:22,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:01:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 12:01:22,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:22,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:22,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:22,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:22,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:22,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 12:01:22,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:22,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:22,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:22,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:22,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:22,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:01:22,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:22,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:22,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:01:22,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289002856] [2020-10-28 12:01:22,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:22,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:22,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397191375] [2020-10-28 12:01:22,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:22,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:22,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:22,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:22,487 INFO L87 Difference]: Start difference. First operand 589 states and 757 transitions. Second operand 5 states. [2020-10-28 12:01:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:24,238 INFO L93 Difference]: Finished difference Result 1466 states and 1962 transitions. [2020-10-28 12:01:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:24,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-28 12:01:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:24,254 INFO L225 Difference]: With dead ends: 1466 [2020-10-28 12:01:24,254 INFO L226 Difference]: Without dead ends: 883 [2020-10-28 12:01:24,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:24,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-10-28 12:01:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 879. [2020-10-28 12:01:24,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-10-28 12:01:24,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1115 transitions. [2020-10-28 12:01:24,315 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1115 transitions. Word has length 127 [2020-10-28 12:01:24,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:24,317 INFO L481 AbstractCegarLoop]: Abstraction has 879 states and 1115 transitions. [2020-10-28 12:01:24,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:24,317 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1115 transitions. [2020-10-28 12:01:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-10-28 12:01:24,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:24,337 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:24,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:01:24,337 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:24,338 INFO L82 PathProgramCache]: Analyzing trace with hash -793693928, now seen corresponding path program 1 times [2020-10-28 12:01:24,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:24,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733288951] [2020-10-28 12:01:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:25,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2187 [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:26,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:01:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-28 12:01:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:26,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:26,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:26,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:26,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:26,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:26,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:26,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:26,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:26,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:26,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 12:01:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:26,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:27,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:27,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 12:01:27,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:27,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-28 12:01:27,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:27,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:27,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:01:27,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:27,159 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 150 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:27,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733288951] [2020-10-28 12:01:27,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:27,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:27,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35688751] [2020-10-28 12:01:27,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:27,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:27,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:27,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:27,163 INFO L87 Difference]: Start difference. First operand 879 states and 1115 transitions. Second operand 7 states. [2020-10-28 12:01:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:29,204 INFO L93 Difference]: Finished difference Result 2221 states and 2889 transitions. [2020-10-28 12:01:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:29,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2020-10-28 12:01:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:29,212 INFO L225 Difference]: With dead ends: 2221 [2020-10-28 12:01:29,212 INFO L226 Difference]: Without dead ends: 1058 [2020-10-28 12:01:29,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2020-10-28 12:01:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1040. [2020-10-28 12:01:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-10-28 12:01:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1270 transitions. [2020-10-28 12:01:29,259 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1270 transitions. Word has length 200 [2020-10-28 12:01:29,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:29,260 INFO L481 AbstractCegarLoop]: Abstraction has 1040 states and 1270 transitions. [2020-10-28 12:01:29,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1270 transitions. [2020-10-28 12:01:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-28 12:01:29,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:29,264 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:29,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:01:29,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:29,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:29,265 INFO L82 PathProgramCache]: Analyzing trace with hash 388940140, now seen corresponding path program 1 times [2020-10-28 12:01:29,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:29,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134435450] [2020-10-28 12:01:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:29,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:30,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:30,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:30,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:30,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-28 12:01:30,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1565 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-28 12:01:30,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:30,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:31,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:31,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:31,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:31,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:31,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:31,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:31,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:31,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:31,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:01:31,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:31,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:31,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:31,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:31,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:31,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:31,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:01:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:31,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:31,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:31,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:31,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 12:01:31,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:31,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-28 12:01:31,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:31,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:31,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 12:01:31,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-28 12:01:31,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134435450] [2020-10-28 12:01:31,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:31,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:31,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554283043] [2020-10-28 12:01:31,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:31,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:31,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:31,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:31,504 INFO L87 Difference]: Start difference. First operand 1040 states and 1270 transitions. Second operand 7 states. [2020-10-28 12:01:33,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:33,980 INFO L93 Difference]: Finished difference Result 2809 states and 3621 transitions. [2020-10-28 12:01:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:01:33,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-28 12:01:33,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:33,995 INFO L225 Difference]: With dead ends: 2809 [2020-10-28 12:01:33,996 INFO L226 Difference]: Without dead ends: 1481 [2020-10-28 12:01:34,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-28 12:01:34,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2020-10-28 12:01:34,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1475. [2020-10-28 12:01:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2020-10-28 12:01:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1832 transitions. [2020-10-28 12:01:34,079 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1832 transitions. Word has length 208 [2020-10-28 12:01:34,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:34,080 INFO L481 AbstractCegarLoop]: Abstraction has 1475 states and 1832 transitions. [2020-10-28 12:01:34,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1832 transitions. [2020-10-28 12:01:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-28 12:01:34,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:34,088 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:34,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:01:34,088 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:34,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1518670648, now seen corresponding path program 1 times [2020-10-28 12:01:34,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:34,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84703669] [2020-10-28 12:01:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:34,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:34,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:34,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:37,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:39,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:39,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:39,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 12:01:39,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:01:39,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:39,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:39,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:39,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:39,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:39,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:39,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:39,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:39,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:39,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:39,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:39,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:39,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:01:39,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:39,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 12:01:39,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:39,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 12:01:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:01:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-28 12:01:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:39,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:01:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:01:40,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84703669] [2020-10-28 12:01:40,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:40,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:40,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410303442] [2020-10-28 12:01:40,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:40,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:40,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:40,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:40,204 INFO L87 Difference]: Start difference. First operand 1475 states and 1832 transitions. Second operand 7 states. [2020-10-28 12:01:42,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:42,205 INFO L93 Difference]: Finished difference Result 3111 states and 3907 transitions. [2020-10-28 12:01:42,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:01:42,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-10-28 12:01:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:42,217 INFO L225 Difference]: With dead ends: 3111 [2020-10-28 12:01:42,217 INFO L226 Difference]: Without dead ends: 1642 [2020-10-28 12:01:42,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:42,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2020-10-28 12:01:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1491. [2020-10-28 12:01:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-28 12:01:42,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1857 transitions. [2020-10-28 12:01:42,283 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1857 transitions. Word has length 244 [2020-10-28 12:01:42,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:42,284 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 1857 transitions. [2020-10-28 12:01:42,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1857 transitions. [2020-10-28 12:01:42,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-28 12:01:42,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:42,292 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:01:42,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:01:42,292 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:42,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:42,293 INFO L82 PathProgramCache]: Analyzing trace with hash 270202316, now seen corresponding path program 1 times [2020-10-28 12:01:42,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:42,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577511343] [2020-10-28 12:01:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:42,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:42,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:45,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:45,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3091 [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:45,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:01:45,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 12:01:45,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:45,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:45,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:45,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:45,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:45,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:01:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:45,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:45,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:45,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:45,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:45,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:45,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 12:01:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:45,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:45,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:45,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:01:45,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:45,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:01:45,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:45,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:01:45,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:45,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 80 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:01:46,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577511343] [2020-10-28 12:01:46,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:46,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:46,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31141033] [2020-10-28 12:01:46,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:46,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:46,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:46,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:46,004 INFO L87 Difference]: Start difference. First operand 1491 states and 1857 transitions. Second operand 7 states. [2020-10-28 12:01:47,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:47,580 INFO L93 Difference]: Finished difference Result 3139 states and 3908 transitions. [2020-10-28 12:01:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:01:47,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2020-10-28 12:01:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:47,591 INFO L225 Difference]: With dead ends: 3139 [2020-10-28 12:01:47,592 INFO L226 Difference]: Without dead ends: 1654 [2020-10-28 12:01:47,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:01:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2020-10-28 12:01:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1642. [2020-10-28 12:01:47,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-28 12:01:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2024 transitions. [2020-10-28 12:01:47,657 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2024 transitions. Word has length 254 [2020-10-28 12:01:47,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:47,658 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 2024 transitions. [2020-10-28 12:01:47,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2024 transitions. [2020-10-28 12:01:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-10-28 12:01:47,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:47,666 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:47,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:01:47,667 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2122844336, now seen corresponding path program 1 times [2020-10-28 12:01:47,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:47,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353422686] [2020-10-28 12:01:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:49,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-28 12:01:49,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:49,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1672 [2020-10-28 12:01:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:49,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 12:01:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:49,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:49,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:49,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:49,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:49,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:49,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:49,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:49,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:49,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:49,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:49,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:49,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:49,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:49,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:49,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:49,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:01:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:49,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:49,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:49,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:49,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:49,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 12:01:49,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:49,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:49,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:49,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-28 12:01:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:49,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:50,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:50,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:01:50,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 12:01:50,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:50,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:01:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 191 proven. 86 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-28 12:01:50,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353422686] [2020-10-28 12:01:50,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:50,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:50,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177635564] [2020-10-28 12:01:50,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:50,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:50,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:50,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:50,245 INFO L87 Difference]: Start difference. First operand 1642 states and 2024 transitions. Second operand 7 states. [2020-10-28 12:01:52,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:52,758 INFO L93 Difference]: Finished difference Result 3288 states and 4064 transitions. [2020-10-28 12:01:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:52,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 324 [2020-10-28 12:01:52,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:52,768 INFO L225 Difference]: With dead ends: 3288 [2020-10-28 12:01:52,768 INFO L226 Difference]: Without dead ends: 1795 [2020-10-28 12:01:52,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2020-10-28 12:01:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1495. [2020-10-28 12:01:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1495 states. [2020-10-28 12:01:52,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1696 transitions. [2020-10-28 12:01:52,847 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1696 transitions. Word has length 324 [2020-10-28 12:01:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:52,847 INFO L481 AbstractCegarLoop]: Abstraction has 1495 states and 1696 transitions. [2020-10-28 12:01:52,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1696 transitions. [2020-10-28 12:01:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-28 12:01:52,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:52,858 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:52,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:01:52,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:52,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:52,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1204031480, now seen corresponding path program 1 times [2020-10-28 12:01:52,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:52,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365251981] [2020-10-28 12:01:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:53,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:53,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:54,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:56,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:56,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-28 12:01:56,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:56,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3347 [2020-10-28 12:01:56,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:56,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:56,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 12:01:56,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:56,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:56,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:56,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:56,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:56,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:56,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:56,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:56,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:56,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:56,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 12:01:56,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:56,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:56,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:56,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:56,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:56,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:56,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:56,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:56,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-28 12:01:56,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:56,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:56,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:56,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:56,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 12:01:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:56,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:57,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:57,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:01:57,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:57,378 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 208 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 12:01:57,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365251981] [2020-10-28 12:01:57,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:57,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:01:57,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948746812] [2020-10-28 12:01:57,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:01:57,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:57,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:01:57,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:01:57,388 INFO L87 Difference]: Start difference. First operand 1495 states and 1696 transitions. Second operand 8 states. [2020-10-28 12:01:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:59,629 INFO L93 Difference]: Finished difference Result 3443 states and 3975 transitions. [2020-10-28 12:01:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:01:59,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 369 [2020-10-28 12:01:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:59,642 INFO L225 Difference]: With dead ends: 3443 [2020-10-28 12:01:59,642 INFO L226 Difference]: Without dead ends: 2097 [2020-10-28 12:01:59,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2097 states. [2020-10-28 12:01:59,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2097 to 2091. [2020-10-28 12:01:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-28 12:01:59,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2356 transitions. [2020-10-28 12:01:59,711 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2356 transitions. Word has length 369 [2020-10-28 12:01:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:59,712 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2356 transitions. [2020-10-28 12:01:59,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:01:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2356 transitions. [2020-10-28 12:01:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-28 12:01:59,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:59,724 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:59,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:01:59,724 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:59,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:59,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1970346288, now seen corresponding path program 1 times [2020-10-28 12:01:59,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:59,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69213855] [2020-10-28 12:01:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:59,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:00,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:01,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 404 [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1256 [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:01,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:02:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 12:02:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 12:02:01,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:01,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:02:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:01,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:01,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:01,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:02:01,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:02:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:01,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:02:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:01,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:01,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:01,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 12:02:01,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:01,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:02:01,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 12:02:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:01,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:01,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:02:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:01,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:02:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:01,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 12:02:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:02:01,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:02:01,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:02:01,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:02:01,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 12:02:01,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:02:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 123 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 12:02:01,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69213855] [2020-10-28 12:02:01,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:02:01,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:02:01,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199312426] [2020-10-28 12:02:01,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:02:01,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:02:01,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:02:01,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:02:01,729 INFO L87 Difference]: Start difference. First operand 2091 states and 2356 transitions. Second operand 5 states. [2020-10-28 12:02:03,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:02:03,164 INFO L93 Difference]: Finished difference Result 4322 states and 4893 transitions. [2020-10-28 12:02:03,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:02:03,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 388 [2020-10-28 12:02:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:02:03,176 INFO L225 Difference]: With dead ends: 4322 [2020-10-28 12:02:03,176 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:02:03,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:02:03,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:02:03,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:02:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:02:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:02:03,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 388 [2020-10-28 12:02:03,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:02:03,185 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:02:03,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:02:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:02:03,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:02:03,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:02:03,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:02:03,413 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-10-28 12:02:03,871 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 135 [2020-10-28 12:02:04,257 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 32 [2020-10-28 12:02:04,849 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 44 [2020-10-28 12:02:05,038 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 30 [2020-10-28 12:02:05,322 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 32 [2020-10-28 12:02:05,326 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:02:05,326 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:02:05,326 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:02:05,326 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:02:05,326 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,326 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:02:05,327 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,328 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 12:02:05,329 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:02:05,330 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,331 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 12:02:05,332 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:02:05,333 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,334 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 12:02:05,335 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:02:05,336 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,337 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:02:05,338 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,339 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse4 (= ~a10~0 |old(~a10~0)|))) (let ((.cse2 (not (<= |old(~a10~0)| 2))) (.cse0 (and .cse3 (= ~a19~0 |old(~a19~0)|) .cse4)) (.cse1 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 4 |old(~a10~0)|)) .cse0) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 .cse2 (not (= 8 |old(~a19~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (not (= 6 |old(~a19~0)|)) .cse1 (and .cse3 (= ~a19~0 6) .cse4)) (or (not (= 9 |old(~a19~0)|)) .cse0 .cse1)))) [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:02:05,340 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,341 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L270 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a10~0)| 2))) (.cse0 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 .cse1) (or (not (= 9 |old(~a19~0)|)) .cse0) (not (<= 4 |old(~a10~0)|)) (or .cse1 (not (= 8 |old(~a19~0)|))) (not (= |old(~a10~0)| 1)) (not (= 0 |old(~a10~0)|)) (or (not (= 6 |old(~a19~0)|)) .cse0))) [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L129-1(line 129) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 12:02:05,342 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 12:02:05,343 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,344 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 12:02:05,345 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:02:05,345 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 12:02:05,345 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:02:05,346 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2)) (.cse1 (<= 2 ~a10~0))) (or (= ~a10~0 1) (= ~a10~0 0) (and .cse0 .cse1) (not (= 9 |old(~a19~0)|)) (<= 4 ~a10~0) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 8) .cse0) (and (= ~a19~0 9) .cse1) (and (= ~a19~0 6) .cse1) (not (= 23 |old(~a1~0)|)))) [2020-10-28 12:02:05,346 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 12:02:05,346 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 12:02:05,346 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (<= ~a10~0 2)) (.cse1 (<= 2 ~a10~0))) (or (= ~a10~0 1) (= ~a10~0 0) (and .cse0 .cse1) (not (= 9 |old(~a19~0)|)) (<= 4 ~a10~0) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 8) .cse0) (and (= ~a19~0 9) .cse1) (and (= ~a19~0 6) .cse1) (not (= 23 |old(~a1~0)|)))) [2020-10-28 12:02:05,346 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:02:05,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:02:05 BoogieIcfgContainer [2020-10-28 12:02:05,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:02:05,373 INFO L168 Benchmark]: Toolchain (without parser) took 53457.54 ms. Allocated memory was 153.1 MB in the beginning and 836.8 MB in the end (delta: 683.7 MB). Free memory was 125.9 MB in the beginning and 513.8 MB in the end (delta: -387.9 MB). Peak memory consumption was 498.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,373 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:02:05,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 884.21 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 132.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,377 INFO L168 Benchmark]: Boogie Preprocessor took 138.27 ms. Allocated memory is still 153.1 MB. Free memory was 132.3 MB in the beginning and 128.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,381 INFO L168 Benchmark]: RCFGBuilder took 1707.45 ms. Allocated memory was 153.1 MB in the beginning and 191.9 MB in the end (delta: 38.8 MB). Free memory was 128.1 MB in the beginning and 145.7 MB in the end (delta: -17.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,384 INFO L168 Benchmark]: TraceAbstraction took 50710.31 ms. Allocated memory was 191.9 MB in the beginning and 836.8 MB in the end (delta: 644.9 MB). Free memory was 145.7 MB in the beginning and 513.8 MB in the end (delta: -368.1 MB). Peak memory consumption was 479.1 MB. Max. memory is 8.0 GB. [2020-10-28 12:02:05,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 884.21 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 132.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 138.27 ms. Allocated memory is still 153.1 MB. Free memory was 132.3 MB in the beginning and 128.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1707.45 ms. Allocated memory was 153.1 MB in the beginning and 191.9 MB in the end (delta: 38.8 MB). Free memory was 128.1 MB in the beginning and 145.7 MB in the end (delta: -17.5 MB). Peak memory consumption was 83.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50710.31 ms. Allocated memory was 191.9 MB in the beginning and 836.8 MB in the end (delta: 644.9 MB). Free memory was 145.7 MB in the beginning and 513.8 MB in the end (delta: -368.1 MB). Peak memory consumption was 479.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((a10 == 1 || a10 == 0) || (a10 <= 2 && 2 <= a10)) || !(9 == \old(a19))) || 4 <= a10) || !(0 == \old(a10))) || (a19 == 8 && a10 <= 2)) || (a19 == 9 && 2 <= a10)) || (a19 == 6 && 2 <= a10)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.4s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 20.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 4525 SDslu, 301 SDs, 0 SdLazy, 9531 SolverSat, 1118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2091occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 505 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 200 PreInvPairs, 240 NumberOfFragments, 367 HoareAnnotationTreeSize, 200 FomulaSimplifications, 35054 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6088 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 25.6s InterpolantComputationTime, 2280 NumberOfCodeBlocks, 2280 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2270 ConstructedInterpolants, 0 QuantifiedInterpolants, 1516962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 1609/1876 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...