/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:40:09,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:40:09,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:40:09,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:40:09,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:40:09,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:40:09,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:40:09,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:40:09,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:40:09,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:40:09,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:40:09,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:40:09,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:40:09,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:40:09,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:40:09,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:40:09,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:40:09,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:40:09,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:40:09,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:40:09,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:40:09,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:40:09,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:40:09,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:40:09,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:40:09,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:40:09,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:40:09,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:40:09,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:40:09,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:40:09,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:40:09,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:40:09,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:40:09,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:40:09,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:40:09,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:40:09,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:40:09,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:40:09,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:40:09,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:40:09,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:40:09,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:40:09,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:40:09,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:40:09,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:40:09,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:40:09,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:40:09,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:40:09,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:40:09,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:40:09,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:40:09,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:40:09,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:40:09,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:40:09,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:40:09,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:40:09,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:40:09,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:40:09,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:40:09,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:40:09,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:40:09,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:40:09,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:40:09,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:40:09,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:40:09,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:40:09,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:40:09,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:40:09,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:40:09,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:40:09,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:40:09,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:40:09,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:40:09,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:40:09,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:40:09,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:40:09,769 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:40:09,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-10-26 20:40:09,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ff74e93/b72b2b47d3f54540b3e6375332834837/FLAGde3685f35 [2020-10-26 20:40:10,586 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:40:10,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label51.c [2020-10-26 20:40:10,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ff74e93/b72b2b47d3f54540b3e6375332834837/FLAGde3685f35 [2020-10-26 20:40:10,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6ff74e93/b72b2b47d3f54540b3e6375332834837 [2020-10-26 20:40:10,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:40:10,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:40:10,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:40:10,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:40:10,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:40:10,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:40:10" (1/1) ... [2020-10-26 20:40:10,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613cb519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:10, skipping insertion in model container [2020-10-26 20:40:10,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:40:10" (1/1) ... [2020-10-26 20:40:10,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:40:10,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:40:11,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:40:11,412 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:40:11,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:40:11,622 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:40:11,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11 WrapperNode [2020-10-26 20:40:11,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:40:11,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:40:11,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:40:11,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:40:11,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... [2020-10-26 20:40:11,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:40:11,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:40:11,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:40:11,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:40:11,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:40:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:40:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:40:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:40:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:40:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:40:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:40:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:40:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:40:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:40:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:40:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:40:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:40:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:40:11,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:40:11,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:40:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:40:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:40:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:40:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:40:13,133 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:40:13,133 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:40:13,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:13 BoogieIcfgContainer [2020-10-26 20:40:13,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:40:13,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:40:13,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:40:13,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:40:13,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:40:10" (1/3) ... [2020-10-26 20:40:13,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc3c2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:13, skipping insertion in model container [2020-10-26 20:40:13,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:11" (2/3) ... [2020-10-26 20:40:13,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc3c2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:13, skipping insertion in model container [2020-10-26 20:40:13,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:13" (3/3) ... [2020-10-26 20:40:13,145 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-10-26 20:40:13,157 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:40:13,162 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:40:13,175 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:40:13,204 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:40:13,205 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:40:13,205 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:40:13,205 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:40:13,205 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:40:13,205 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:40:13,205 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:40:13,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:40:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:40:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-26 20:40:13,242 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:13,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:13,244 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:13,251 INFO L82 PathProgramCache]: Analyzing trace with hash 932538693, now seen corresponding path program 1 times [2020-10-26 20:40:13,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:13,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403939759] [2020-10-26 20:40:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:13,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:13,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:15,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 20:40:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2137 [2020-10-26 20:40:15,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-26 20:40:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:15,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-26 20:40:15,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:40:16,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:16,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:40:16,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:16,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:16,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:16,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:16,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:40:16,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1403939759] [2020-10-26 20:40:16,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:40:16,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 20:40:16,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795314807] [2020-10-26 20:40:16,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 20:40:16,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:17,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 20:40:17,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:40:17,020 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 11 states. [2020-10-26 20:40:17,290 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:40:17,491 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:40:17,679 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-26 20:40:17,866 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:40:18,302 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 110 [2020-10-26 20:40:18,771 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-26 20:40:19,620 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2020-10-26 20:40:20,252 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2020-10-26 20:40:21,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:21,466 INFO L93 Difference]: Finished difference Result 541 states and 898 transitions. [2020-10-26 20:40:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:40:21,470 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 117 [2020-10-26 20:40:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:21,485 INFO L225 Difference]: With dead ends: 541 [2020-10-26 20:40:21,485 INFO L226 Difference]: Without dead ends: 237 [2020-10-26 20:40:21,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2020-10-26 20:40:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-10-26 20:40:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 234. [2020-10-26 20:40:21,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-26 20:40:21,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 324 transitions. [2020-10-26 20:40:21,563 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 324 transitions. Word has length 117 [2020-10-26 20:40:21,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:21,564 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 324 transitions. [2020-10-26 20:40:21,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 20:40:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 324 transitions. [2020-10-26 20:40:21,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:40:21,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:21,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:21,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:40:21,569 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:21,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1339482490, now seen corresponding path program 1 times [2020-10-26 20:40:21,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:21,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623049501] [2020-10-26 20:40:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:21,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:21,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:22,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:23,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:23,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 20:40:23,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:23,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1722 [2020-10-26 20:40:23,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:40:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:23,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-26 20:40:23,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:23,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:23,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:23,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:23,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:23,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:40:23,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:23,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:23,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:40:23,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:23,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:40:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:40:23,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623049501] [2020-10-26 20:40:23,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:23,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:40:23,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789857783] [2020-10-26 20:40:23,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:23,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:23,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:23,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:23,664 INFO L87 Difference]: Start difference. First operand 234 states and 324 transitions. Second operand 7 states. [2020-10-26 20:40:25,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:25,322 INFO L93 Difference]: Finished difference Result 632 states and 905 transitions. [2020-10-26 20:40:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:40:25,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 126 [2020-10-26 20:40:25,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:25,338 INFO L225 Difference]: With dead ends: 632 [2020-10-26 20:40:25,338 INFO L226 Difference]: Without dead ends: 404 [2020-10-26 20:40:25,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:40:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-10-26 20:40:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 390. [2020-10-26 20:40:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-10-26 20:40:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 545 transitions. [2020-10-26 20:40:25,410 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 545 transitions. Word has length 126 [2020-10-26 20:40:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:25,411 INFO L481 AbstractCegarLoop]: Abstraction has 390 states and 545 transitions. [2020-10-26 20:40:25,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 545 transitions. [2020-10-26 20:40:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-26 20:40:25,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:25,415 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:25,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:40:25,416 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:25,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:25,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1031770190, now seen corresponding path program 1 times [2020-10-26 20:40:25,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:25,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445329977] [2020-10-26 20:40:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:25,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:25,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:25,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:27,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:27,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 20:40:27,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:27,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1728 [2020-10-26 20:40:27,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:40:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:27,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-26 20:40:27,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:27,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:27,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:27,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:27,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:27,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:27,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:27,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:27,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:27,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:27,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:27,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:27,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:27,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:40:27,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:27,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:40:27,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:40:27,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445329977] [2020-10-26 20:40:27,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:27,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:40:27,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065500362] [2020-10-26 20:40:27,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:40:27,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:27,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:40:27,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:40:27,503 INFO L87 Difference]: Start difference. First operand 390 states and 545 transitions. Second operand 6 states. [2020-10-26 20:40:28,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:28,942 INFO L93 Difference]: Finished difference Result 1084 states and 1559 transitions. [2020-10-26 20:40:28,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:40:28,943 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2020-10-26 20:40:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:28,951 INFO L225 Difference]: With dead ends: 1084 [2020-10-26 20:40:28,952 INFO L226 Difference]: Without dead ends: 700 [2020-10-26 20:40:28,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:28,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-10-26 20:40:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 690. [2020-10-26 20:40:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-26 20:40:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 951 transitions. [2020-10-26 20:40:29,011 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 951 transitions. Word has length 130 [2020-10-26 20:40:29,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:29,012 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 951 transitions. [2020-10-26 20:40:29,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:40:29,012 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 951 transitions. [2020-10-26 20:40:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-26 20:40:29,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:29,019 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:29,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:40:29,019 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:29,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:29,020 INFO L82 PathProgramCache]: Analyzing trace with hash -303174711, now seen corresponding path program 1 times [2020-10-26 20:40:29,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:29,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580861680] [2020-10-26 20:40:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:29,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:29,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:29,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:30,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:30,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1096 [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:40:30,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:40:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:30,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:30,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:30,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:30,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:40:30,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:30,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:30,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:30,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:30,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:30,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:30,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:30,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:40:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:30,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:30,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:30,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-26 20:40:30,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:40:30,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:30,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:40:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:30,468 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 20:40:30,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580861680] [2020-10-26 20:40:30,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:30,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:30,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102633444] [2020-10-26 20:40:30,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:30,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:30,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:30,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:30,473 INFO L87 Difference]: Start difference. First operand 690 states and 951 transitions. Second operand 7 states. [2020-10-26 20:40:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:33,048 INFO L93 Difference]: Finished difference Result 1720 states and 2380 transitions. [2020-10-26 20:40:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:40:33,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-10-26 20:40:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:33,056 INFO L225 Difference]: With dead ends: 1720 [2020-10-26 20:40:33,057 INFO L226 Difference]: Without dead ends: 1036 [2020-10-26 20:40:33,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:33,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2020-10-26 20:40:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1014. [2020-10-26 20:40:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1014 states. [2020-10-26 20:40:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1349 transitions. [2020-10-26 20:40:33,108 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1349 transitions. Word has length 158 [2020-10-26 20:40:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:33,109 INFO L481 AbstractCegarLoop]: Abstraction has 1014 states and 1349 transitions. [2020-10-26 20:40:33,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1349 transitions. [2020-10-26 20:40:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-26 20:40:33,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:33,114 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:33,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:40:33,115 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:33,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:33,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1445200580, now seen corresponding path program 1 times [2020-10-26 20:40:33,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:33,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998466168] [2020-10-26 20:40:33,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:33,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:33,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:33,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:34,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:34,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:35,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:35,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-26 20:40:35,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1999 [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-26 20:40:35,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:35,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:35,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:35,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:35,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:35,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:40:35,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:35,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:35,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:35,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:35,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:35,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:35,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:35,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:35,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:40:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:35,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:40:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:40:35,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:40:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:35,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:35,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:35,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:35,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:40:35,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:35,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-26 20:40:35,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:40:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:40:35,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998466168] [2020-10-26 20:40:35,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:35,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:40:35,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799678816] [2020-10-26 20:40:35,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:35,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:35,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:35,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:35,629 INFO L87 Difference]: Start difference. First operand 1014 states and 1349 transitions. Second operand 7 states. [2020-10-26 20:40:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:37,597 INFO L93 Difference]: Finished difference Result 3010 states and 4208 transitions. [2020-10-26 20:40:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:40:37,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2020-10-26 20:40:37,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:37,615 INFO L225 Difference]: With dead ends: 3010 [2020-10-26 20:40:37,615 INFO L226 Difference]: Without dead ends: 2005 [2020-10-26 20:40:37,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:40:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2020-10-26 20:40:37,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1964. [2020-10-26 20:40:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1964 states. [2020-10-26 20:40:37,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2585 transitions. [2020-10-26 20:40:37,738 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2585 transitions. Word has length 159 [2020-10-26 20:40:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:37,738 INFO L481 AbstractCegarLoop]: Abstraction has 1964 states and 2585 transitions. [2020-10-26 20:40:37,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:37,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2585 transitions. [2020-10-26 20:40:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-26 20:40:37,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:37,749 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:37,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:40:37,749 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:37,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:37,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1060430557, now seen corresponding path program 1 times [2020-10-26 20:40:37,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:37,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560341595] [2020-10-26 20:40:37,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:37,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:37,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:37,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-26 20:40:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:40:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-26 20:40:42,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:40:42,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:40:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:40:42,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:42,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:42,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:42,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:42,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:40:42,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:42,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:42,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:42,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:42,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:42,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:42,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:42,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:42,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:40:42,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:42,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:40:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:42,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:43,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:43,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:43,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:43,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:43,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 20:40:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:43,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:43,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:40:43,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 53 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 20:40:43,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560341595] [2020-10-26 20:40:43,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:43,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:43,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735030777] [2020-10-26 20:40:43,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:43,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:43,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:43,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:43,109 INFO L87 Difference]: Start difference. First operand 1964 states and 2585 transitions. Second operand 7 states. [2020-10-26 20:40:43,404 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:45,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:45,322 INFO L93 Difference]: Finished difference Result 4784 states and 6594 transitions. [2020-10-26 20:40:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:45,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-26 20:40:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:45,342 INFO L225 Difference]: With dead ends: 4784 [2020-10-26 20:40:45,342 INFO L226 Difference]: Without dead ends: 2829 [2020-10-26 20:40:45,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:45,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2020-10-26 20:40:45,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2738. [2020-10-26 20:40:45,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2738 states. [2020-10-26 20:40:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3436 transitions. [2020-10-26 20:40:45,461 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3436 transitions. Word has length 170 [2020-10-26 20:40:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:45,463 INFO L481 AbstractCegarLoop]: Abstraction has 2738 states and 3436 transitions. [2020-10-26 20:40:45,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3436 transitions. [2020-10-26 20:40:45,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 20:40:45,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:45,473 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:45,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:40:45,473 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:45,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:45,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1727908005, now seen corresponding path program 1 times [2020-10-26 20:40:45,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:45,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990564993] [2020-10-26 20:40:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:45,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:49,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:50,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:40:50,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:40:50,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:50,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:40:50,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:40:50,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:50,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:40:50,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:40:50,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:40:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:50,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:50,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:50,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:40:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:50,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:50,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:50,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:40:50,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:50,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:40:50,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:50,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:50,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:40:50,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:50,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:40:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 20:40:50,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990564993] [2020-10-26 20:40:50,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:50,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:50,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946129605] [2020-10-26 20:40:50,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:50,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:50,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:50,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:50,793 INFO L87 Difference]: Start difference. First operand 2738 states and 3436 transitions. Second operand 7 states. [2020-10-26 20:40:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:53,230 INFO L93 Difference]: Finished difference Result 6595 states and 8414 transitions. [2020-10-26 20:40:53,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:53,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-10-26 20:40:53,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:53,257 INFO L225 Difference]: With dead ends: 6595 [2020-10-26 20:40:53,257 INFO L226 Difference]: Without dead ends: 3866 [2020-10-26 20:40:53,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:53,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2020-10-26 20:40:53,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3812. [2020-10-26 20:40:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3812 states. [2020-10-26 20:40:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 4627 transitions. [2020-10-26 20:40:53,435 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 4627 transitions. Word has length 174 [2020-10-26 20:40:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:53,436 INFO L481 AbstractCegarLoop]: Abstraction has 3812 states and 4627 transitions. [2020-10-26 20:40:53,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 4627 transitions. [2020-10-26 20:40:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-26 20:40:53,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:53,449 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:53,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:40:53,449 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:53,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:53,450 INFO L82 PathProgramCache]: Analyzing trace with hash 436403331, now seen corresponding path program 1 times [2020-10-26 20:40:53,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:53,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147428626] [2020-10-26 20:40:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2454 [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-26 20:40:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:40:55,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:56,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:40:56,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:56,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:56,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:40:56,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:40:56,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:40:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:56,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:40:56,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:40:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:56,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:40:56,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:56,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:40:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:56,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:56,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:40:56,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 20:40:56,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:56,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-26 20:40:56,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:40:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 20:40:56,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147428626] [2020-10-26 20:40:56,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:56,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:56,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253577716] [2020-10-26 20:40:56,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:56,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:56,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:56,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:56,325 INFO L87 Difference]: Start difference. First operand 3812 states and 4627 transitions. Second operand 7 states. [2020-10-26 20:40:58,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:58,780 INFO L93 Difference]: Finished difference Result 9377 states and 12109 transitions. [2020-10-26 20:40:58,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:58,780 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-26 20:40:58,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:58,815 INFO L225 Difference]: With dead ends: 9377 [2020-10-26 20:40:58,815 INFO L226 Difference]: Without dead ends: 5574 [2020-10-26 20:40:58,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5574 states. [2020-10-26 20:40:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5574 to 5478. [2020-10-26 20:40:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5478 states. [2020-10-26 20:40:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6615 transitions. [2020-10-26 20:40:59,008 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6615 transitions. Word has length 195 [2020-10-26 20:40:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:59,008 INFO L481 AbstractCegarLoop]: Abstraction has 5478 states and 6615 transitions. [2020-10-26 20:40:59,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6615 transitions. [2020-10-26 20:40:59,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-10-26 20:40:59,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:59,022 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:59,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:40:59,022 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:59,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:59,023 INFO L82 PathProgramCache]: Analyzing trace with hash 474350771, now seen corresponding path program 1 times [2020-10-26 20:40:59,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:59,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653261731] [2020-10-26 20:40:59,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:59,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:59,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:59,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:59,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 20:41:04,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:41:04,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:41:04,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:41:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:41:04,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-26 20:41:04,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:41:04,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:41:04,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-26 20:41:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:41:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:04,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:04,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:41:04,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:04,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:41:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:41:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:41:04,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:04,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:41:04,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:41:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-26 20:41:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:04,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:04,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:41:04,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:41:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 89 proven. 45 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-26 20:41:04,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653261731] [2020-10-26 20:41:04,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:04,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 20:41:04,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28144017] [2020-10-26 20:41:04,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:41:04,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:04,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:41:04,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:41:04,680 INFO L87 Difference]: Start difference. First operand 5478 states and 6615 transitions. Second operand 9 states. [2020-10-26 20:41:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:07,044 INFO L93 Difference]: Finished difference Result 11012 states and 13581 transitions. [2020-10-26 20:41:07,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:41:07,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 205 [2020-10-26 20:41:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:07,078 INFO L225 Difference]: With dead ends: 11012 [2020-10-26 20:41:07,078 INFO L226 Difference]: Without dead ends: 5543 [2020-10-26 20:41:07,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:41:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2020-10-26 20:41:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 5155. [2020-10-26 20:41:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5155 states. [2020-10-26 20:41:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6014 transitions. [2020-10-26 20:41:07,262 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6014 transitions. Word has length 205 [2020-10-26 20:41:07,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:07,263 INFO L481 AbstractCegarLoop]: Abstraction has 5155 states and 6014 transitions. [2020-10-26 20:41:07,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:41:07,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6014 transitions. [2020-10-26 20:41:07,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-26 20:41:07,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:07,276 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:07,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:41:07,277 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:07,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:07,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1003389073, now seen corresponding path program 1 times [2020-10-26 20:41:07,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:07,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108811183] [2020-10-26 20:41:07,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:07,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:07,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3334 [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:41:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:41:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-26 20:41:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:10,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:10,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:10,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:10,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:41:10,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:41:10,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:10,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:10,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:41:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:41:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:41:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:41:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:11,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-26 20:41:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-26 20:41:11,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-26 20:41:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 60 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-26 20:41:11,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108811183] [2020-10-26 20:41:11,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:11,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:11,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485754619] [2020-10-26 20:41:11,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:11,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:11,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:11,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:11,122 INFO L87 Difference]: Start difference. First operand 5155 states and 6014 transitions. Second operand 7 states. [2020-10-26 20:41:12,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:12,932 INFO L93 Difference]: Finished difference Result 8608 states and 10034 transitions. [2020-10-26 20:41:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:41:12,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-10-26 20:41:12,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:12,971 INFO L225 Difference]: With dead ends: 8608 [2020-10-26 20:41:12,972 INFO L226 Difference]: Without dead ends: 4370 [2020-10-26 20:41:12,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:41:12,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2020-10-26 20:41:13,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4358. [2020-10-26 20:41:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4358 states. [2020-10-26 20:41:13,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4358 states to 4358 states and 4974 transitions. [2020-10-26 20:41:13,092 INFO L78 Accepts]: Start accepts. Automaton has 4358 states and 4974 transitions. Word has length 206 [2020-10-26 20:41:13,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:13,092 INFO L481 AbstractCegarLoop]: Abstraction has 4358 states and 4974 transitions. [2020-10-26 20:41:13,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:13,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4358 states and 4974 transitions. [2020-10-26 20:41:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-26 20:41:13,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:13,107 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:13,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:41:13,108 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:13,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:13,108 INFO L82 PathProgramCache]: Analyzing trace with hash 738116041, now seen corresponding path program 1 times [2020-10-26 20:41:13,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:13,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257179829] [2020-10-26 20:41:13,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:13,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-26 20:41:18,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:18,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:18,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:41:18,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:41:18,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:18,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:18,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:41:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:18,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:18,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:18,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:41:18,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:41:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:18,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:18,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 20:41:18,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:41:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:41:18,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:41:18,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-26 20:41:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:41:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:18,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:18,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:18,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:18,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:18,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:41:18,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:41:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:18,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 159 proven. 28 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-26 20:41:18,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257179829] [2020-10-26 20:41:18,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:18,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:18,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066205392] [2020-10-26 20:41:18,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:18,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:18,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:18,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:18,571 INFO L87 Difference]: Start difference. First operand 4358 states and 4974 transitions. Second operand 7 states. [2020-10-26 20:41:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:20,713 INFO L93 Difference]: Finished difference Result 5116 states and 5910 transitions. [2020-10-26 20:41:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:41:20,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-26 20:41:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:20,715 INFO L225 Difference]: With dead ends: 5116 [2020-10-26 20:41:20,715 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:41:20,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:20,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:41:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:41:20,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:41:20,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:41:20,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 252 [2020-10-26 20:41:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:20,728 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:41:20,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:41:20,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:41:20,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:41:20,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:41:21,540 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 203 [2020-10-26 20:41:21,864 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 213 [2020-10-26 20:41:22,125 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 40 [2020-10-26 20:41:22,275 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 37 [2020-10-26 20:41:23,405 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 196 DAG size of output: 66 [2020-10-26 20:41:24,007 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 52 [2020-10-26 20:41:24,498 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 52 [2020-10-26 20:41:24,502 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:41:24,502 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:41:24,502 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:41:24,502 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:41:24,503 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:41:24,504 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,505 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:41:24,506 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:41:24,507 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L270 CegarLoopResult]: At program point L504(line 504) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a11~0)| 1))) (.cse6 (not (= |old(~a19~0)| 1))) (.cse4 (not (<= 1 |old(~a11~0)|))) (.cse7 (not (= 0 |old(~a11~0)|))) (.cse3 (not (= 8 |old(~a17~0)|))) (.cse1 (not (= 0 |old(~a25~0)|))) (.cse5 (not (= |old(~a25~0)| 1))) (.cse0 (not (<= |old(~a17~0)| 7))) (.cse8 (not (= 9 |old(~a28~0)|)))) (and (or (not (= 10 |old(~a28~0)|)) .cse0 .cse1) (or .cse2 .cse3 .cse1 .cse4) (or .cse5 .cse6 .cse0) (or .cse5 .cse7 .cse3) (or .cse5 .cse2 .cse6 .cse3 .cse4) (or .cse7 .cse1 .cse8) (or .cse7 .cse3 .cse1) (or .cse5 .cse0 .cse8))) [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L504-1(line 504) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:24,508 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,509 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:41:24,510 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:41:24,511 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,512 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,513 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,514 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:41:24,515 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,516 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:41:24,517 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:41:24,518 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse16 (not (= |old(~a19~0)| 1))) (.cse10 (= ~a19~0 1)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a28~0 9)) (.cse19 (not (<= |old(~a17~0)| 7))) (.cse7 (not (= 9 |old(~a28~0)|))) (.cse14 (not (= |old(~a25~0)| 1))) (.cse13 (= ~a25~0 1)) (.cse5 (not (= 0 |old(~a11~0)|))) (.cse1 (= ~a11~0 |old(~a11~0)|)) (.cse15 (not (<= |old(~a11~0)| 1))) (.cse8 (= ~a28~0 |old(~a28~0)|)) (.cse9 (<= 1 ~a11~0)) (.cse2 (= ~a25~0 |old(~a25~0)|)) (.cse11 (<= ~a11~0 1)) (.cse12 (= ~a17~0 8)) (.cse4 (= ~a19~0 |old(~a19~0)|)) (.cse17 (not (= 8 |old(~a17~0)|))) (.cse6 (not (= 0 |old(~a25~0)|))) (.cse18 (not (<= 1 |old(~a11~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13) .cse14 .cse15 .cse16 .cse17 .cse18) (or .cse14 .cse16 .cse19 (and .cse8 .cse0 .cse1 .cse10 .cse13)) (or (not (= 10 |old(~a28~0)|)) (and .cse0 .cse1 .cse2 .cse4 (= ~a28~0 10)) .cse19 .cse6) (or .cse14 (and .cse0 .cse1 .cse13 .cse3 .cse4) .cse19 .cse7) (or .cse14 .cse5 (and .cse8 .cse1 .cse12 .cse13 .cse4) .cse17) (or .cse5 (and .cse8 .cse1 .cse2 .cse12 .cse4) .cse17 .cse6) (or .cse15 (and .cse8 .cse9 .cse2 .cse11 .cse12 .cse4) .cse17 .cse6 .cse18))) [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:41:24,519 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:41:24,520 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,521 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:41:24,522 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:41:24,523 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:41:24,524 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:41:24,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:24,524 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= ~a21~0 1) (<= 7 ~a28~0) (<= 8 ~a17~0) (= ~a11~0 0) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-10-26 20:41:24,524 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:41:24,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:24,524 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse1 (= ~a25~0 0)) (.cse6 (= ~a11~0 0)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a11~0 1)) (.cse3 (= ~a17~0 8)) (.cse7 (= ~a19~0 1)) (.cse4 (= ~a25~0 1)) (.cse5 (<= ~a17~0 7))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse4 (= ~a28~0 9) .cse5) (and .cse1 .cse5 (= ~a28~0 10)) (and .cse1 .cse3 .cse6) (and .cse3 .cse4 .cse6) (not (= ~a21~0 1)) (and .cse0 .cse7 .cse2 .cse3 .cse4) (and .cse7 .cse4 .cse5) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-26 20:41:24,524 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (not (= 8 |old(~a17~0)|)) (and (= ~a25~0 ~a11~0) (= ~a19~0 1) (<= 7 ~a28~0) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8) (<= ~a28~0 7)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (not (= ~a21~0 1)) (not (= |old(~a11~0)| |old(~a25~0)|))) [2020-10-26 20:41:24,524 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:24,525 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:24,525 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse1 (= ~a25~0 0)) (.cse6 (= ~a11~0 0)) (.cse0 (<= 1 ~a11~0)) (.cse2 (<= ~a11~0 1)) (.cse3 (= ~a17~0 8)) (.cse7 (= ~a19~0 1)) (.cse4 (= ~a25~0 1)) (.cse5 (<= ~a17~0 7))) (or (not (= |old(~a19~0)| 1)) (and .cse0 .cse1 .cse2 .cse3) (not (= 8 |old(~a17~0)|)) (not (= 0 |old(~a25~0)|)) (not (<= 7 |old(~a28~0)|)) (not (<= |old(~a28~0)| 7)) (and .cse4 (= ~a28~0 9) .cse5) (and .cse1 .cse5 (= ~a28~0 10)) (and .cse1 .cse3 .cse6) (and .cse3 .cse4 .cse6) (not (= ~a21~0 1)) (and .cse0 .cse7 .cse2 .cse3 .cse4) (and .cse7 .cse4 .cse5) (not (= |old(~a11~0)| |old(~a25~0)|)))) [2020-10-26 20:41:24,525 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:41:24,525 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:41:24,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:41:24 BoogieIcfgContainer [2020-10-26 20:41:24,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:41:24,548 INFO L168 Benchmark]: Toolchain (without parser) took 73684.77 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 124.7 MB in the beginning and 1.1 GB in the end (delta: -936.6 MB). Peak memory consumption was 683.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:24,549 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:41:24,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.51 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 130.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:24,550 INFO L168 Benchmark]: Boogie Preprocessor took 117.21 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 125.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:24,551 INFO L168 Benchmark]: RCFGBuilder took 1390.89 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:24,552 INFO L168 Benchmark]: TraceAbstraction took 71409.15 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 104.3 MB in the beginning and 1.1 GB in the end (delta: -957.0 MB). Peak memory consumption was 662.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:24,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 753.51 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 130.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 117.21 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 125.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1390.89 ms. Allocated memory is still 151.0 MB. Free memory was 125.8 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 71409.15 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 104.3 MB in the beginning and 1.1 GB in the end (delta: -957.0 MB). Peak memory consumption was 662.0 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: 608]: Loop Invariant Derived loop invariant: ((((((((((((!(\old(a19) == 1) || (((1 <= a11 && a25 == 0) && a11 <= 1) && a17 == 8)) || !(8 == \old(a17))) || !(0 == \old(a25))) || !(7 <= \old(a28))) || !(\old(a28) <= 7)) || ((a25 == 1 && a28 == 9) && a17 <= 7)) || ((a25 == 0 && a17 <= 7) && a28 == 10)) || ((a25 == 0 && a17 == 8) && a11 == 0)) || ((a17 == 8 && a25 == 1) && a11 == 0)) || !(a21 == 1)) || ((((1 <= a11 && a19 == 1) && a11 <= 1) && a17 == 8) && a25 == 1)) || ((a19 == 1 && a25 == 1) && a17 <= 7)) || !(\old(a11) == \old(a25)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 67.5s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 409 SDtfs, 5524 SDslu, 613 SDs, 0 SdLazy, 10939 SolverSat, 2008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 215 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5478occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 731 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 361 PreInvPairs, 409 NumberOfFragments, 741 HoareAnnotationTreeSize, 361 FomulaSimplifications, 7930 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 6212 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 39.1s InterpolantComputationTime, 1892 NumberOfCodeBlocks, 1892 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1881 ConstructedInterpolants, 0 QuantifiedInterpolants, 1132530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 779/958 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...