/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:38:50,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:38:50,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:38:50,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:38:50,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:38:50,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:38:50,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:38:50,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:38:50,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:38:50,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:38:50,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:38:50,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:38:50,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:38:50,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:38:50,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:38:50,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:38:50,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:38:50,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:38:50,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:38:50,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:38:50,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:38:50,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:38:50,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:38:50,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:38:50,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:38:50,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:38:50,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:38:50,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:38:50,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:38:50,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:38:50,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:38:50,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:38:50,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:38:50,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:38:50,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:38:50,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:38:50,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:38:50,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:38:50,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:38:50,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:38:50,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:38:50,201 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 [2020-10-29 06:38:50,251 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:38:50,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:38:50,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:38:50,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:38:50,257 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:38:50,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:38:50,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:38:50,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:38:50,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:38:50,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:38:50,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:38:50,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:38:50,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:38:50,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:38:50,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:38:50,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:38:50,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:38:50,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:38:50,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:38:50,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:38:50,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:38:50,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:38:50,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:38:50,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:38:50,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:38:50,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:38:50,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:38:50,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:38:50,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:38:50,264 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:38:50,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:38:50,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:38:50,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:38:50,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:38:50,769 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:38:50,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-10-29 06:38:50,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f803e9/6c5fbbb9e55444fa947bfbb3d4701d04/FLAG229303444 [2020-10-29 06:38:51,677 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:38:51,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-10-29 06:38:51,697 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f803e9/6c5fbbb9e55444fa947bfbb3d4701d04/FLAG229303444 [2020-10-29 06:38:51,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad5f803e9/6c5fbbb9e55444fa947bfbb3d4701d04 [2020-10-29 06:38:51,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:38:51,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:38:51,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:38:51,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:38:51,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:38:51,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:38:51" (1/1) ... [2020-10-29 06:38:51,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d41673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:51, skipping insertion in model container [2020-10-29 06:38:51,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:38:51" (1/1) ... [2020-10-29 06:38:51,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:38:51,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:38:52,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:38:52,395 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:38:52,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:38:52,608 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:38:52,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52 WrapperNode [2020-10-29 06:38:52,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:38:52,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:38:52,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:38:52,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:38:52,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (1/1) ... [2020-10-29 06:38:52,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:38:52,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:38:52,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:38:52,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:38:52,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (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 [2020-10-29 06:38:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:38:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:38:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:38:52,834 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:38:52,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:38:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:38:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:38:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:38:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:38:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:38:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:38:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:38:52,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:38:54,363 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:38:54,364 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:38:54,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:38:54 BoogieIcfgContainer [2020-10-29 06:38:54,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:38:54,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:38:54,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:38:54,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:38:54,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:38:51" (1/3) ... [2020-10-29 06:38:54,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7787ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:38:54, skipping insertion in model container [2020-10-29 06:38:54,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:38:52" (2/3) ... [2020-10-29 06:38:54,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7787ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:38:54, skipping insertion in model container [2020-10-29 06:38:54,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:38:54" (3/3) ... [2020-10-29 06:38:54,377 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-10-29 06:38:54,390 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:38:54,396 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:38:54,412 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:38:54,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:38:54,444 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:38:54,445 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:38:54,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:38:54,445 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:38:54,445 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:38:54,445 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:38:54,445 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:38:54,471 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:38:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-29 06:38:54,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:54,479 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] [2020-10-29 06:38:54,479 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:54,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:54,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1629572132, now seen corresponding path program 1 times [2020-10-29 06:38:54,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:54,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928262417] [2020-10-29 06:38:54,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:54,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:55,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:55,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 06:38:55,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:55,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-10-29 06:38:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:55,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 06:38:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 06:38:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:55,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:55,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:55,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:38:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:55,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:55,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:55,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:38:55,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928262417] [2020-10-29 06:38:55,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:38:55,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:38:55,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592435737] [2020-10-29 06:38:55,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:38:55,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:55,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:38:55,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:38:55,490 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:38:57,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:38:57,393 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-29 06:38:57,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:38:57,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-29 06:38:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:38:57,412 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:38:57,413 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:38:57,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:38:57,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:38:57,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-29 06:38:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-29 06:38:57,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-29 06:38:57,508 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 36 [2020-10-29 06:38:57,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:38:57,509 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-29 06:38:57,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:38:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-29 06:38:57,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 06:38:57,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:38:57,515 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:38:57,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:38:57,515 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:38:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:38:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash 742016028, now seen corresponding path program 1 times [2020-10-29 06:38:57,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:38:57,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909528176] [2020-10-29 06:38:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:38:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:57,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:57,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:59,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:59,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:38:59,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:38:59,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1465 [2020-10-29 06:38:59,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:59,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:38:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:38:59,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 06:38:59,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:38:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:59,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:38:59,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 06:38:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:59,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:38:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:38:59,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:38:59,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:38:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:38:59,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:38:59,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:38:59,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:38:59,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:38:59,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 06:38:59,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:38:59,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:38:59,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:38:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:38:59,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:38:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:38:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:38:59,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909528176] [2020-10-29 06:38:59,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:38:59,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:38:59,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457103408] [2020-10-29 06:38:59,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:38:59,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:38:59,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:38:59,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:38:59,508 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-29 06:39:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:01,173 INFO L93 Difference]: Finished difference Result 743 states and 1056 transitions. [2020-10-29 06:39:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:39:01,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2020-10-29 06:39:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:01,178 INFO L225 Difference]: With dead ends: 743 [2020-10-29 06:39:01,178 INFO L226 Difference]: Without dead ends: 452 [2020-10-29 06:39:01,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:39:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2020-10-29 06:39:01,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 446. [2020-10-29 06:39:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-29 06:39:01,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 602 transitions. [2020-10-29 06:39:01,222 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 602 transitions. Word has length 108 [2020-10-29 06:39:01,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:01,223 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 602 transitions. [2020-10-29 06:39:01,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:01,223 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 602 transitions. [2020-10-29 06:39:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 06:39:01,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:01,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:01,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:39:01,227 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:01,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1258466848, now seen corresponding path program 1 times [2020-10-29 06:39:01,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:01,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441251429] [2020-10-29 06:39:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:01,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:01,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:01,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 515 [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 06:39:01,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:01,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:01,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:01,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:01,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:39:01,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:01,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:01,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:01,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:02,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:02,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:39:02,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 06:39:02,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:02,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:02,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:02,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:39:02,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:02,139 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:39:02,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441251429] [2020-10-29 06:39:02,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:02,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:02,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308513105] [2020-10-29 06:39:02,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:02,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:02,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:02,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:02,145 INFO L87 Difference]: Start difference. First operand 446 states and 602 transitions. Second operand 5 states. [2020-10-29 06:39:03,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:03,748 INFO L93 Difference]: Finished difference Result 892 states and 1262 transitions. [2020-10-29 06:39:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:03,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2020-10-29 06:39:03,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:03,753 INFO L225 Difference]: With dead ends: 892 [2020-10-29 06:39:03,753 INFO L226 Difference]: Without dead ends: 448 [2020-10-29 06:39:03,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-29 06:39:03,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2020-10-29 06:39:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2020-10-29 06:39:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 582 transitions. [2020-10-29 06:39:03,783 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 582 transitions. Word has length 115 [2020-10-29 06:39:03,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:03,784 INFO L481 AbstractCegarLoop]: Abstraction has 446 states and 582 transitions. [2020-10-29 06:39:03,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 582 transitions. [2020-10-29 06:39:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 06:39:03,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:03,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:03,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:39:03,788 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:03,788 INFO L82 PathProgramCache]: Analyzing trace with hash 420592668, now seen corresponding path program 1 times [2020-10-29 06:39:03,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:03,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559359048] [2020-10-29 06:39:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:03,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:04,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:04,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:04,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:39:04,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:39:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 06:39:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:04,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:04,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:04,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:04,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:04,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 06:39:04,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:04,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:04,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:39:04,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:04,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:04,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:05,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:39:05,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 06:39:05,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:05,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:05,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:05,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:39:05,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:39:05,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559359048] [2020-10-29 06:39:05,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:39:05,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:39:05,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599285034] [2020-10-29 06:39:05,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:05,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:05,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:05,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:05,137 INFO L87 Difference]: Start difference. First operand 446 states and 582 transitions. Second operand 7 states. [2020-10-29 06:39:06,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:06,844 INFO L93 Difference]: Finished difference Result 1061 states and 1456 transitions. [2020-10-29 06:39:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:39:06,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-29 06:39:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:06,850 INFO L225 Difference]: With dead ends: 1061 [2020-10-29 06:39:06,850 INFO L226 Difference]: Without dead ends: 764 [2020-10-29 06:39:06,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:39:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-10-29 06:39:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 744. [2020-10-29 06:39:06,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-29 06:39:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 900 transitions. [2020-10-29 06:39:06,887 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 900 transitions. Word has length 117 [2020-10-29 06:39:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:06,888 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 900 transitions. [2020-10-29 06:39:06,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 900 transitions. [2020-10-29 06:39:06,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-29 06:39:06,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:06,892 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:06,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:39:06,893 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:06,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:06,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1243614688, now seen corresponding path program 1 times [2020-10-29 06:39:06,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:06,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383456618] [2020-10-29 06:39:06,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:07,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:08,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:08,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:08,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1855 [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:39:08,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:39:08,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 06:39:08,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:08,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:08,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:08,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:08,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:08,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 06:39:08,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:08,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:39:08,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:09,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:09,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:09,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:39:09,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:09,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:39:09,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:39:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:09,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:09,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:09,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:09,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:39:09,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:09,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 06:39:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:09,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 06:39:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:39:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 48 proven. 11 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-29 06:39:09,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383456618] [2020-10-29 06:39:09,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:09,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:09,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066403824] [2020-10-29 06:39:09,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:09,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:09,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:09,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:09,478 INFO L87 Difference]: Start difference. First operand 744 states and 900 transitions. Second operand 7 states. [2020-10-29 06:39:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:12,978 INFO L93 Difference]: Finished difference Result 1990 states and 2486 transitions. [2020-10-29 06:39:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 06:39:12,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-29 06:39:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:12,990 INFO L225 Difference]: With dead ends: 1990 [2020-10-29 06:39:12,990 INFO L226 Difference]: Without dead ends: 1395 [2020-10-29 06:39:12,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 06:39:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2020-10-29 06:39:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1326. [2020-10-29 06:39:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-29 06:39:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1583 transitions. [2020-10-29 06:39:13,045 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1583 transitions. Word has length 178 [2020-10-29 06:39:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:13,046 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1583 transitions. [2020-10-29 06:39:13,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1583 transitions. [2020-10-29 06:39:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-29 06:39:13,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:13,050 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:13,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:39:13,050 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:13,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:13,051 INFO L82 PathProgramCache]: Analyzing trace with hash 2128129752, now seen corresponding path program 1 times [2020-10-29 06:39:13,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:13,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514661470] [2020-10-29 06:39:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:13,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:13,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:13,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-29 06:39:13,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-29 06:39:13,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:13,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:39:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 06:39:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:13,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:13,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:13,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:13,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:13,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:39:13,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:13,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:13,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:13,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:13,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:14,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:14,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:39:14,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:14,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 06:39:14,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:14,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:39:14,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:14,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:39:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:14,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:14,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:14,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:39:14,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:14,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-29 06:39:14,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:14,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:14,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:14,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:39:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:39:14,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514661470] [2020-10-29 06:39:14,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:14,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:14,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994295964] [2020-10-29 06:39:14,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:14,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:14,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:14,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:14,358 INFO L87 Difference]: Start difference. First operand 1326 states and 1583 transitions. Second operand 7 states. [2020-10-29 06:39:16,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:16,194 INFO L93 Difference]: Finished difference Result 2968 states and 3673 transitions. [2020-10-29 06:39:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:39:16,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-29 06:39:16,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:16,207 INFO L225 Difference]: With dead ends: 2968 [2020-10-29 06:39:16,207 INFO L226 Difference]: Without dead ends: 1791 [2020-10-29 06:39:16,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:39:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2020-10-29 06:39:16,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1634. [2020-10-29 06:39:16,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2020-10-29 06:39:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 1927 transitions. [2020-10-29 06:39:16,276 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 1927 transitions. Word has length 187 [2020-10-29 06:39:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:16,276 INFO L481 AbstractCegarLoop]: Abstraction has 1634 states and 1927 transitions. [2020-10-29 06:39:16,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 1927 transitions. [2020-10-29 06:39:16,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-29 06:39:16,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:16,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 06:39:16,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:39:16,282 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:16,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:16,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1704388172, now seen corresponding path program 1 times [2020-10-29 06:39:16,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:16,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927728626] [2020-10-29 06:39:16,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:16,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:16,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:16,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-29 06:39:16,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:16,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-29 06:39:16,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:16,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-29 06:39:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 06:39:16,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:16,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:16,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:16,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:16,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:16,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 06:39:16,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:16,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:16,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:16,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:17,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:17,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:39:17,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:17,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 06:39:17,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:17,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:17,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:17,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:39:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:17,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:17,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:17,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 06:39:17,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:17,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 06:39:17,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:17,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:17,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:39:17,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-29 06:39:17,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927728626] [2020-10-29 06:39:17,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:17,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:17,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567754335] [2020-10-29 06:39:17,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:17,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:17,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:17,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:17,253 INFO L87 Difference]: Start difference. First operand 1634 states and 1927 transitions. Second operand 5 states. [2020-10-29 06:39:18,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:18,775 INFO L93 Difference]: Finished difference Result 3556 states and 4308 transitions. [2020-10-29 06:39:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:18,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 254 [2020-10-29 06:39:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:18,788 INFO L225 Difference]: With dead ends: 3556 [2020-10-29 06:39:18,789 INFO L226 Difference]: Without dead ends: 2071 [2020-10-29 06:39:18,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2020-10-29 06:39:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 1924. [2020-10-29 06:39:18,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2020-10-29 06:39:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2255 transitions. [2020-10-29 06:39:18,873 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2255 transitions. Word has length 254 [2020-10-29 06:39:18,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:18,874 INFO L481 AbstractCegarLoop]: Abstraction has 1924 states and 2255 transitions. [2020-10-29 06:39:18,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2255 transitions. [2020-10-29 06:39:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-29 06:39:18,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:18,884 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:18,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:39:18,885 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:18,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash -144474920, now seen corresponding path program 1 times [2020-10-29 06:39:18,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:18,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467695974] [2020-10-29 06:39:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:19,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:19,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:21,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:22,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:24,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 375 [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-29 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:24,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:24,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:24,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:24,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:24,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:24,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:24,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:24,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:39:24,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:24,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:24,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:39:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:24,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:24,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:24,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 06:39:24,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:24,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 06:39:24,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:24,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:24,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:39:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:24,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-29 06:39:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:24,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:24,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:24,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:24,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-29 06:39:24,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:24,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:24,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:39:24,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 280 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-29 06:39:24,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467695974] [2020-10-29 06:39:24,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:24,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:24,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485544831] [2020-10-29 06:39:24,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:24,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:24,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:24,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:24,980 INFO L87 Difference]: Start difference. First operand 1924 states and 2255 transitions. Second operand 7 states. [2020-10-29 06:39:26,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:26,778 INFO L93 Difference]: Finished difference Result 4021 states and 4835 transitions. [2020-10-29 06:39:26,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:39:26,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2020-10-29 06:39:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:26,790 INFO L225 Difference]: With dead ends: 4021 [2020-10-29 06:39:26,790 INFO L226 Difference]: Without dead ends: 1809 [2020-10-29 06:39:26,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:39:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2020-10-29 06:39:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1783. [2020-10-29 06:39:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1783 states. [2020-10-29 06:39:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2057 transitions. [2020-10-29 06:39:26,856 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2057 transitions. Word has length 359 [2020-10-29 06:39:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:26,857 INFO L481 AbstractCegarLoop]: Abstraction has 1783 states and 2057 transitions. [2020-10-29 06:39:26,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2057 transitions. [2020-10-29 06:39:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-10-29 06:39:26,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:26,867 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 06:39:26,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:39:26,868 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:26,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:26,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1751140844, now seen corresponding path program 1 times [2020-10-29 06:39:26,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:26,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358362690] [2020-10-29 06:39:26,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:26,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:28,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:29,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:29,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 378 [2020-10-29 06:39:29,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:39:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2219 [2020-10-29 06:39:29,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:29,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:39:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 06:39:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:29,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:29,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:29,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:29,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:39:29,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:29,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:29,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:29,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:29,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:39:29,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 06:39:29,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:29,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:29,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:29,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:39:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:39:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:29,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:39:29,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:39:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:29,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:39:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:29,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:29,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:29,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:29,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:29,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:39:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 283 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 06:39:30,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358362690] [2020-10-29 06:39:30,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:30,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:30,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270912997] [2020-10-29 06:39:30,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:30,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:30,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:30,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:30,112 INFO L87 Difference]: Start difference. First operand 1783 states and 2057 transitions. Second operand 7 states. [2020-10-29 06:39:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:31,952 INFO L93 Difference]: Finished difference Result 3874 states and 4549 transitions. [2020-10-29 06:39:31,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:39:31,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-10-29 06:39:31,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:31,969 INFO L225 Difference]: With dead ends: 3874 [2020-10-29 06:39:31,969 INFO L226 Difference]: Without dead ends: 2240 [2020-10-29 06:39:31,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:39:31,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2020-10-29 06:39:32,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2083. [2020-10-29 06:39:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-29 06:39:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2437 transitions. [2020-10-29 06:39:32,048 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2437 transitions. Word has length 362 [2020-10-29 06:39:32,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:32,048 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2437 transitions. [2020-10-29 06:39:32,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:32,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2437 transitions. [2020-10-29 06:39:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2020-10-29 06:39:32,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:32,061 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:32,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:39:32,062 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:32,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:32,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1183106472, now seen corresponding path program 1 times [2020-10-29 06:39:32,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:32,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1658570484] [2020-10-29 06:39:32,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:32,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:32,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:33,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:33,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:34,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:37,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 412 [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:37,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:39:37,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:39:37,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:37,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:37,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:37,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:37,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:37,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 06:39:37,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:37,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:37,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:37,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:37,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:37,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:37,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:37,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:39:37,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 06:39:37,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:37,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:39:37,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:37,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:39:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:37,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:39:37,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:39:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:37,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-29 06:39:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:37,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:37,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:37,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:37,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 06:39:37,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:37,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-29 06:39:37,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:37,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 200 proven. 118 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:39:38,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1658570484] [2020-10-29 06:39:38,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:38,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:38,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736997211] [2020-10-29 06:39:38,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:38,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:38,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:38,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:38,063 INFO L87 Difference]: Start difference. First operand 2083 states and 2437 transitions. Second operand 7 states. [2020-10-29 06:39:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:39,698 INFO L93 Difference]: Finished difference Result 4317 states and 5126 transitions. [2020-10-29 06:39:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:39:39,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 396 [2020-10-29 06:39:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:39,713 INFO L225 Difference]: With dead ends: 4317 [2020-10-29 06:39:39,713 INFO L226 Difference]: Without dead ends: 2383 [2020-10-29 06:39:39,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:39:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2020-10-29 06:39:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2377. [2020-10-29 06:39:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2377 states. [2020-10-29 06:39:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 2781 transitions. [2020-10-29 06:39:39,825 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 2781 transitions. Word has length 396 [2020-10-29 06:39:39,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:39,826 INFO L481 AbstractCegarLoop]: Abstraction has 2377 states and 2781 transitions. [2020-10-29 06:39:39,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:39,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 2781 transitions. [2020-10-29 06:39:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-29 06:39:39,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:39,838 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:39,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:39:39,839 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:39,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:39,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1047229828, now seen corresponding path program 1 times [2020-10-29 06:39:39,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:39,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195265847] [2020-10-29 06:39:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:40,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:40,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:41,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:42,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 417 [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2923 [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:42,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 251 [2020-10-29 06:39:42,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 06:39:42,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:42,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:42,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:42,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:42,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:42,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:42,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:42,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:39:43,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:39:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 06:39:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 06:39:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 06:39:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:43,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:43,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:43,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:43,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:43,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:39:43,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-29 06:39:43,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195265847] [2020-10-29 06:39:43,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:43,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:39:43,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909809624] [2020-10-29 06:39:43,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:39:43,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:43,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:39:43,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:39:43,610 INFO L87 Difference]: Start difference. First operand 2377 states and 2781 transitions. Second operand 7 states. [2020-10-29 06:39:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:45,507 INFO L93 Difference]: Finished difference Result 4899 states and 5769 transitions. [2020-10-29 06:39:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:39:45,515 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-10-29 06:39:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:45,528 INFO L225 Difference]: With dead ends: 4899 [2020-10-29 06:39:45,528 INFO L226 Difference]: Without dead ends: 2671 [2020-10-29 06:39:45,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:39:45,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2020-10-29 06:39:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2379. [2020-10-29 06:39:45,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2020-10-29 06:39:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2785 transitions. [2020-10-29 06:39:45,619 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2785 transitions. Word has length 401 [2020-10-29 06:39:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:45,620 INFO L481 AbstractCegarLoop]: Abstraction has 2379 states and 2785 transitions. [2020-10-29 06:39:45,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:39:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2785 transitions. [2020-10-29 06:39:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-29 06:39:45,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:39:45,636 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:39:45,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:39:45,637 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:39:45,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:39:45,637 INFO L82 PathProgramCache]: Analyzing trace with hash 393707572, now seen corresponding path program 1 times [2020-10-29 06:39:45,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:39:45,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788550938] [2020-10-29 06:39:45,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:39:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:45,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:46,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 450 [2020-10-29 06:39:46,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:39:46,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 412 [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 06:39:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:46,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:39:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:46,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:46,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:46,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:46,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:39:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:46,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:46,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-29 06:39:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:46,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:39:46,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:46,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-29 06:39:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:39:46,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:39:46,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:39:46,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:39:46,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:39:46,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:39:46,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 06:39:46,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:39:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-29 06:39:47,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788550938] [2020-10-29 06:39:47,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:39:47,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:39:47,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818940477] [2020-10-29 06:39:47,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:39:47,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:39:47,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:39:47,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:39:47,045 INFO L87 Difference]: Start difference. First operand 2379 states and 2785 transitions. Second operand 5 states. [2020-10-29 06:39:48,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:39:48,516 INFO L93 Difference]: Finished difference Result 4606 states and 5411 transitions. [2020-10-29 06:39:48,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:39:48,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 434 [2020-10-29 06:39:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:39:48,519 INFO L225 Difference]: With dead ends: 4606 [2020-10-29 06:39:48,519 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:39:48,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:39:48,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:39:48,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:39:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:39:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:39:48,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 434 [2020-10-29 06:39:48,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:39:48,530 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:39:48,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:39:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:39:48,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:39:48,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:39:48,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:39:48,721 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 136 [2020-10-29 06:39:49,240 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 136 [2020-10-29 06:39:49,519 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 45 [2020-10-29 06:39:50,106 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 59 [2020-10-29 06:39:50,273 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 43 [2020-10-29 06:39:50,506 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 45 [2020-10-29 06:39:50,510 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:39:50,511 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,512 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:39:50,513 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:39:50,514 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,515 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,516 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:39:50,517 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:39:50,518 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,519 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:39:50,520 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,521 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:39:50,522 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (= ~a1~0 |old(~a1~0)|)) (.cse1 (= ~a10~0 |old(~a10~0)|))) (let ((.cse2 (and .cse0 (= ~a19~0 |old(~a19~0)|) .cse1))) (and (or (not (= 6 |old(~a19~0)|)) (and .cse0 (= ~a19~0 6) .cse1)) (or .cse2 (not (= 8 |old(~a19~0)|))) (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse0 .cse1) (not (= 9 |old(~a19~0)|))) (or .cse2 (not (= 2 |old(~a10~0)|))) (or (and (= 14 ~a4~0) (not (< 0 |old(~a10~0)|)) (= ~a12~0 0) (not (<= (+ |old(~a10~0)| 1) 0)) (not (<= 0 (+ |old(~a1~0)| 12)))) .cse2 (not (= 7 |old(~a19~0)|))) (or (not (<= 10 |old(~a19~0)|)) .cse2 (not (<= |old(~a10~0)| 1)))))) [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:39:50,523 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L270 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (and (or (and (= 14 ~a4~0) (not (< 0 |old(~a10~0)|)) (= ~a12~0 0) (not (<= (+ |old(~a10~0)| 1) 0)) (not (<= 0 (+ |old(~a1~0)| 12)))) (not (= 7 |old(~a19~0)|))) (not (= 6 |old(~a19~0)|)) (not (= 9 |old(~a19~0)|)) (or (not (<= 10 |old(~a19~0)|)) (not (<= |old(~a10~0)| 1))) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|))) [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L93-1(line 93) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:39:50,524 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:39:50,525 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,526 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:39:50,527 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-29 06:39:50,528 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:39:50,528 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (<= 9 ~a19~0) (<= ~a19~0 9) (= 23 ~a1~0) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-29 06:39:50,528 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:39:50,529 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (or (< 0 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 14 ~a4~0)) (not (= ~a12~0 0)) (<= (+ ~a10~0 1) 0)) (= 7 ~a19~0)) (and (<= 10 ~a19~0) (<= ~a10~0 1)) (= ~a19~0 6) (not (= 23 |old(~a1~0)|))) [2020-10-29 06:39:50,529 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:39:50,529 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:39:50,529 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (and (or (< 0 ~a10~0) (<= 0 (+ ~a1~0 12)) (not (= 14 ~a4~0)) (not (= ~a12~0 0)) (<= (+ ~a10~0 1) 0)) (= 7 ~a19~0)) (and (<= 10 ~a19~0) (<= ~a10~0 1)) (= ~a19~0 6) (not (= 23 |old(~a1~0)|))) [2020-10-29 06:39:50,529 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:39:50,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:39:50 BoogieIcfgContainer [2020-10-29 06:39:50,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:39:50,553 INFO L168 Benchmark]: Toolchain (without parser) took 58661.04 ms. Allocated memory was 159.4 MB in the beginning and 974.1 MB in the end (delta: 814.7 MB). Free memory was 132.3 MB in the beginning and 457.0 MB in the end (delta: -324.8 MB). Peak memory consumption was 490.4 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:50,554 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 159.4 MB. Free memory was 131.3 MB in the beginning and 131.2 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:39:50,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.15 ms. Allocated memory is still 159.4 MB. Free memory was 131.6 MB in the beginning and 138.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:50,555 INFO L168 Benchmark]: Boogie Preprocessor took 115.45 ms. Allocated memory is still 159.4 MB. Free memory was 138.0 MB in the beginning and 133.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:50,556 INFO L168 Benchmark]: RCFGBuilder took 1638.82 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 133.3 MB in the beginning and 155.9 MB in the end (delta: -22.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:50,557 INFO L168 Benchmark]: TraceAbstraction took 56182.79 ms. Allocated memory was 199.2 MB in the beginning and 974.1 MB in the end (delta: 774.9 MB). Free memory was 155.3 MB in the beginning and 457.0 MB in the end (delta: -301.7 MB). Peak memory consumption was 472.7 MB. Max. memory is 8.0 GB. [2020-10-29 06:39:50,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 159.4 MB. Free memory was 131.3 MB in the beginning and 131.2 MB in the end (delta: 102.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 712.15 ms. Allocated memory is still 159.4 MB. Free memory was 131.6 MB in the beginning and 138.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.45 ms. Allocated memory is still 159.4 MB. Free memory was 138.0 MB in the beginning and 133.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1638.82 ms. Allocated memory was 159.4 MB in the beginning and 199.2 MB in the end (delta: 39.8 MB). Free memory was 133.3 MB in the beginning and 155.9 MB in the end (delta: -22.5 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 56182.79 ms. Allocated memory was 199.2 MB in the beginning and 974.1 MB in the end (delta: 774.9 MB). Free memory was 155.3 MB in the beginning and 457.0 MB in the end (delta: -301.7 MB). Peak memory consumption was 472.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((a19 == 8 || a10 == 2) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || (((((0 < a10 || 0 <= a1 + 12) || !(14 == a4)) || !(a12 == 0)) || a10 + 1 <= 0) && 7 == a19)) || (10 <= a19 && a10 <= 1)) || a19 == 6) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.0s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 4891 SDslu, 435 SDs, 0 SdLazy, 10834 SolverSat, 1543 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 102 SyntacticMatches, 5 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2379occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 888 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 248 PreInvPairs, 288 NumberOfFragments, 390 HoareAnnotationTreeSize, 248 FomulaSimplifications, 12740 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 4744 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 2947 NumberOfCodeBlocks, 2947 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2935 ConstructedInterpolants, 0 QuantifiedInterpolants, 1827052 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 2380/2523 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...